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g e data sheet september 26, 2013 ?2013 general electric corporation. all rights reserved. page 1 kstw 010a0f barracuda* series; dc - dc converter power modules 36 - 75vdc input; 3.3v dc, 10a output features ? compliant to rohs ii eu directive 2011/65/eu ( - z versions) ? compliant to reach directive (ec) no 1907/2006 ? w ide input voltage range, 36 v dc to 75v dc ? no minimum load ? high efficiency C 90 % (typ) at full load (v in =48v dc ) ? constant switching frequency ? low output ripple and noise ? small size and low profile, follows dosa standard 1/16th footprint 33.0 mm x 22.9 mm x 9.3 mm (1.30 in x 0.9 in x 0.37 in) ? surface mount (smt) or t hrough hole (th) ? reflow process compliant, both smt and th versions ? positive remote on/off logic ? output overcurrent/voltage protection (hiccup) ? over - temperature protection ? output voltage adjust: 80% to 110% of v o,nom ? wide operating temperature range ( - 40c to 85c) ? ansi/ ul # 60950 - 1 - 2011 recognized, can/csa? c22.2 no.60950 - 1 - 07, second edition + a1:2011 (mod) certified iec 60950 - 1:2005 (2nd edition) + a1:2009 and en 60950 - 1:2006 +a11:2009 +a1:2010 +a12:2011, and vde?0805 (en60950 - 1 3rd edition) licens ed ? ce mark meets 2006/95/ec directive ? meets the voltage and current requirements for etsi 300 - 132 - 2 and complies with and licensed for basic insulation rating per en60950 - 1 ? 2250 vdc isolation tested in compliance with ieee 802.3 poe standards ? iso** 9001 and iso 14001 certified manufacturing facilities applications ? wireless networks ? hybrid power architectures ? optical and access network equipment ? enterprise networks including power over ethernet (poe) ? industrial markets options ? negative remote on/off logic (preferred) ? surface mount/tape and reel ( - sr suffix) ? auto - restart over current/over voltage protections (preferred) ? shorter through hole pin trim description the kstw 010a0f series power modules are isolated dosa compliant 1/16 th brick dc - dc converters that operate over a wide input voltage range of 36 v dc - 75v dc and provide a single precisely regulated output voltage at 3.3v dc . the output is fully isolated from the input, allowing versatile polarity configurations and grounding connections. the modules exhibit high efficiency of 90 % typical at full load . built - in filtering for both input and output minimizes the need for external filtering. the module is fully self - protected with output over - current and over - voltage, over - temperature and in put under voltage shutdown control. optional features include negative or positive on/off logic and smt connections * trademark of general electric corporation # ul is a registered trademark of underwriters laboratories, inc. ? csa is a registered trademark of canadian standards association. ? vde is a trademark of verband deutscher elektrotechniker e.v. this product is intended for integration into end - user equipment. all of the required procedures of end - use equipment should be followed. ieee and 802 are registered trademarks of the institute of electrical and electronics engineers, incorporated. ** iso is a registered trademark of the international organization of standards. rohs compliant rohs compliant
g e data sheet kstw010a0f barracuda* series; dc - dc converter power modules 36 - 75vdc input; 3.3vdc, 10a output september 26, 2013 ?2013 general electric corporation. all rights reserved. page 2 absolute maximum ratings stresses in excess of the absolute maximum ratings can cause permanent damage to the device. these are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the oper ations sections of the dat a sheet. exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. parameter device symbol min max unit input voltage (continuous) all v in - 0.3 80 vdc transient (100ms) all v in, trans - 0.3 100 vdc operating ambient temperature all t a - 40 8 5 c (see thermal considerations section) storage temperature all t stg - 55 125 c altitude * all 4000 m i/o isolation voltage (100% factory hi - pot tested) all ? ? 2250 vdc * for higher altitude applications, contact your ge sales representative for alternative conditions of use. electrical specifications unless otherwise indicated, specifications apply at v in = 48v dc , resistive load, and t a = 25c conditions . parameter device symbol min typ max unit operating input voltage all v in 36 48 75 v dc input no load current all i in,no load 35 ma ( v in = 48v dc i o = 0 a , module enabled) input stand - by current all i in,stand - by 6 ma (v in = 36 to 48v dc , module disabled) maximum input current (v in =36 v dc , i o = i o,max ) all i in, max 1.2 a dc inrush transient all i 2 t 0.05 a 2 s input reflected ripple current, peak - to - peak (5hz to 20mhz, 12h source impedance; v in =0v to 75v dc , i o = i omax ; see test configuration section) all 30 ma p - p input ripple rejection (120hz) all 60 db emc, en55022 see emc considerations section caution: this power module is not internally fused. an input line fuse must always be used. this power module can be used in a wide variety of applications, ranging from simple standalone operation to being part of complex power architecture. to preserve maximum flexibility, internal fusing is not included; however, to achieve maximum saf ety and system protection, always use an input line fuse. the safety agencies require a fast - acting fuse with a maximum rating of 3 a (see safety considerations section). based on the information provided in this data sheet on inrush energy and maximum dc input cur rent, the same type of fuse with a lower rating can be used. refer to the fuse manufacturers data sheet for further informat ion.
g e data sheet kstw010a0f barracuda* series; dc - dc converter power modules 36 - 75 vdc input; 3.3vdc, 10a output september 26, 2013 ?2013 general electric corporation. all rights reserved. page 3 electrical specifications (continued) unless otherwise indicated, specifications apply at v in = 48vdc, resistive load, and t a = 25c conditions . parameter device symbol min typ max unit output voltage set - point (v in = 48v dc , i o =i o, max ,) all v o, set 3.25 3.3 0 3.35 v dc output voltage all v o - 3.0 ? +3.0 % v o, set (over all operating input voltage, resistive load, and temperature conditions until end of life) adjustment range all v o, adj - 2 0 +10 % v o, set selected by external resistor remote sense range all +10 % v o, set output regulation line (v in =v in, min to v in, max ) all ? 0.05 0.2 % v o, set load (i o =i o, min to i o, max ) all ? 0.05 0.2 % v o, set temperature (t ref =t a, min to t a, max ) all ? ? 1.0 % v o, set output ripple and noise on nominal output measured with 10uf tantalum|| 1uf ceramic (v in = 48v dc , i o =80%i o, max ) rms (5hz to 20mhz bandwidth) all ? 25 mv rms peak - to - peak (5hz to 20mhz bandwidth) ? 75 mv pk - pk external capacitance (see note 1 in feature specifications) all c o, max 0 ? 5000 f output current (v in =36v to 75v) all i o 0 ? 10 a dc output current limit inception (hiccup mode) (v in =36v to 75v) all i o, lim 11 ? 14 a dc output short - circuit current (v o 250 mv) all i o, s/c ? 2.5 ? a rms efficiency (v in =48v dc , i o =i o, max ) all 90 ? % switching frequency (fixed) all f sw ? 3 50 ? khz v in =36 to 48v dc , i o = i o, max dynamic load response ( ? io/ ? t=0.1a/ ? s) load change from io= 50% to 75% or 25% to 50% of i o,max : peak deviation all v pk ? 3.0 ? % v o, set settling time (vo<10% peak deviation) all t s ? 400 ? ? s isolation specifications parameter symbol min typ max unit isolation capacitance c iso ? 1000 ? pf isolation resistance r iso 10 ? ? m i/o isolation voltage all ? ? 2250 vdc
g e data sheet kstw010a0f barracuda* series; dc - dc converter power modules 36 - 75vdc input; 3.3vdc, 10a output september 26, 2013 ?2013 general electric corporation. all rights reserved. page 4 general specifications feature specifications unless otherwise indicated, specifications apply at v in = 48v dc , resistive load, and t a = 25c conditions. see feature descriptions for additional information. parameter device symbol min typ max unit remote on/off signal interface (v in =v in, min to v in, max ; open collector or equivalent, signal referenced to v in - terminal) negative logic: device code suffix 1 logic low = module on, logic high = module off positive logic: no device code suffix required logic low = module off, logic high = module on logic low - remote on/off current (v on/off = - 0.7v dc ) all i on/off ? ? 0.15 ma logic low - on/off voltage all v on/off - 0.7 ? 0. 8 v dc logic high voltage (i on/off = 0a dc ) all v on/off 2. 4 ? 7 v dc logic high maximum allowable leakage current all i on/off ? ? 25 a turn - on delay and rise times (i o =80% of i o, max ) case 1: input power is applied for at least 1second, and then the on/off input is set from off to on (t delay = on/off pin transition until v o = 10% of v o, set ) all t delay case1 ? 35 50 ms case 2: on/off input is set to module on, and then input power is applied (t delay = v in reaches v in, min until v o = 10% of v o,set ) all t delay case2 ? 24 50 ms output voltage rise time (time for v o to rise from 10% of v o,set to 90% of v o, set ) all t rise ? 30 50 ms output voltage overshoot 3 % v o, set (i o =80% of i o, max , v in = 48v dc ) output overvoltage protection (see note1 below) all v o, limit 4.0 ? 5.5 v dc input undervoltage lockout turn - on threshold all v uv/on ? 34 36 v dc turn - off threshold all v uv/off 30 32 ? v dc hysterisis all v hyst ? 2.0 ? v dc note: 1.the module requires a minimum of 47 0 f external output capacitor to avoid exceeding the ovp maximum limits during startup into open loop fault conditions . parameter min typ max unit calculated reliability based upon telcordia sr - 332 issue 2: method i case 3 (i o =80%i o, max , t a =40c, airflow = 200 lfm, 90% confidence) fit >270 10 9 /hours mtbf >3,600,000 hours weight ? 13 (0.46) ? g (oz.)
ge data sheet kstw010a0f barracuda* series; dc - dc converter power modules 36 - 75vdc input; 3.3vdc, 10a output september 26, 2013 ?2013 general electric corporation. all rights reserved. page 5 characteristic curves the following figures provide typical characteristics for the kstw 010a0f (3.3v, 10a ) at 25 o c. the figures are identical for either positive or negative remote on/off logic. efficiency, ? (%) input current, i in (a) output current, i o (a) input voltage, v in (v) figure 1. converter efficiency versus output current. figure 2. converter input current versus input voltage . output voltage v o (v) ( 5 0mv/div) output current output voltage io(a) (5 a/div) v o (v) (100mv/div) time, t ( 2 ? s/div) time, t ( 500 ? s/div) figure 3. typical output ripple and noise (i o = i o,max ). figure 4. transient response to 0.1a/s dynamic load change from 50% to 75% to 50% of full load, vin= 48 v . on/off voltage output voltage v on/off v) (2v/div) v o ( (v) (1v/div) input voltage output voltage v in (v) (20v/div) v o (v) ( 1 v/div) time, t ( 1 0ms/div) time, t ( 1 0ms/div) figure 5.typical start - up using remote on/off, negative logic version shown (v in = 48v , io = i o,max ). figure 6. typical start - up using input voltage (v in = 48v, i o = i o,max ). 75 vin 48vin 36 vin 75vin 48vin 36vin io = 0a io = 5a io = 10a
g e data sheet kstw010a0f barracuda * series; dc - dc converter power modules 36 - 75 vdc input; 3.3vdc, 10a output september 26, 2013 ?2013 general electric corporation. all rights reserved. page 6 test configurations figure 7 . input reflected ripple current test setup. figure 8 . output ripple and noise test setup. figure 9 . output voltage and efficiency test setup. design considerations input source impedance the power module should be connected to a low ac - impedance source. highly inductive source impedance can affect the stability of the power module. for the test configuration in figure 7 , a 33f electrolytic capacitor (esr<0.7 ? at 100khz), mounted close to the power module helps ensure the stability of th e unit. consult the factory for further application guidelines. safety considerations for safety - agency approval of the system in which the power module is used, the power module must be installed in compliance with the spacing and separation requirements of the end - use safety agency standard, i.e., ul 60950 - 1 - 3, csa c22.2 no. 60950 - 00, and vde 0 805 (iec60950, 3 rd edition) . if the input source is non - selv (elv or a hazardous voltage greater than 60 vdc and less than or equal to 75vdc), for the modules out put to be considered as meeting the requirements for safety extra - low voltage (selv), all of the following must be true: ? the input source is to be provided with reinforced insulation from any other hazardous voltages, including the ac mains. ? one v in pin an d one v out pin are to be grounded, or both the input and output pins are to be kept floating. ? the input pins of the module are not operator accessible. ? another selv reliability test is conducted on the whole system (combination of supply source and subject module), as required by the safety agencies, to verify that under a single fault, hazardous voltages do not appear at the modules output. note: do not ground either of the input pins of the module without grounding one of the output pins. this may allow a non - selv voltage to appear between the output pins and ground. the power module has extra - low voltage (elv) outputs when all inputs are elv. for input voltages exceeding C 60 vdc but less than or equal to C 75 vdc, these converters have been evaluated to t he applicable requirements of basic insulation between secondary dc mains distribution input (classified as tnv - 2 in europe) and unearthed selv outputs. the input to these units is to be provided with a maximum 3 a fast acting fuse in the ungrounded lead. to oscilloscope current probe l test 12h battery c s 220f e.s.r.<0.1 ? @ 20c 100khz 33f vin+ vin - note: measure input reflected ripple current with a simulated source inductance (l test ) of 12h. capacit or c s offsets possible battery impedance. measure current as shown above. note: all voltage measurements to be taken at the module terminals, as shown above. if sockets are used then kelvin connections are required at the module terminals to avoid measurement errors due to socket contact resistance. v o (+) v o ( C ) 1uf . resistive load scope copper strip ground plane 10uf vout+ vout - vin+ vin - r load r contact r distribution r contact r distribution r contact r contact r distribution r distribution v in v o note: all voltage measurements to be taken at the module terminal s, as shown above. if sockets are used then kelvin connections are required at the module terminals to avoid measurement errors due to socket contact resistance. ? = v o . i o v in . i in x 100 % efficiency
ge data sheet kstw010a0f barracuda* series; dc - dc converter power modules 36 - 75vdc input; 3.3vdc, 10a output september 26, 2013 ?2013 general electric corporation. all rights reserved. page 7 feature description remote on/off two remote on/off options are available. positive logic turns the module on during a logic high voltage on the on/off pin, and off during a lo gic low. negative logic remote on/off , device code suffix 1, turns the module off during a logic high and on during a logic low. figure 10 . circuit configuration for using remote on/off implementation. to turn the power module on and off, the user must supply a switch (open collector or equivalent) to c ontrol the voltage (v on/off ) between the on/off terminal and the v in ( - ) terminal. logic low is 0v v on/off 0.8 v. the maximum i on/off during a logic low is 0. 1 5 ma, the switch should be maintain a logic low level whilst sinking this current. during a logi c high, the typical v on/off generated by the module is 4.0 v, and the maximum allowable leakage current at v on/off = 4.0v is 25 a. if not using the remote on/off feature: for positive logic, leave the on/off pin open. for negative logic, short the on/off pin to v in ( - ). overcurrent protection to provide protection in a fault (output overload) condition, the unit is equipped with internal current - limiting circuitry and can endure current limiting continuously. at the point of current - limit inception, the uni t enters hiccup mode. if the unit is not configured with auto C restart, then it will latch off following the over current condition. the module can be restarted by cycling the dc inp ut power or by toggling the remote on/of f signal . if the unit is configured with the auto - restart option (4), it will remain in the hiccup mode as long as the overcurrent condition exists; it operates normally, once the output current is brought back into its specified range. overtemperature protection to provide protection under certain fault conditions, the unit is equipped with a thermal shutdown circuit. the unit will shut down if the thermal reference point tref ( figure 16 ), exceeds 1 35 o c (typical), but the thermal shutdown is not intended as a guarantee that the unit will survive temperatures beyond its rating. the module will automatically restart upon cool - down to a safe temperature. input undervoltage lockout at input voltages below the input un dervoltage lockout limit, the module operation is disabled. the module will only begin to operate once the input voltage is raised above the undervoltage lockout turn - on threshold, v uv/on . once operating, the module will continue to operate until the inpu t voltage is taken below the undervoltage turn - off threshold, v uv/off . over voltage protection the output overvoltage protection shall consist of circuitry that independently monitors the output voltage , and shuts the module down if the output voltage exce eds s pecified limits . this protection feature latches in the event of over voltage across the output. cycling the on/off pin or input voltage resets the latching protection feature. if the auto - restart option (4) is ordered, the module will automatically restart upon an internally programmed time elapsing. output voltage programming trimming allows the user to increase or decrease the output voltage set point of the module. this is accomplished by connecting an external resistor between the trim pin and either the vout+ pin or the vout - pin. trim down C decrease output voltage by connecting an external resistor (radj - down) between the trim pin and v o ( - ) or sense( - ) pin (see figure 11), the out put voltage set point decreases . the following equation deter mines the external resistor value to obtain an output voltage change from v o, set to the desired v o, desired : where figure 11 . circuit configuration to decrease output voltage. trim up C increase output voltage by connecting an external resistor (radj - up) between the trim pin and v o (+) or sense(+) pin (see figure 12), the output voltage set point increases. the following equation determines the external resistor value to obtain an output voltage change f rom v o,set to the desired v o,desired : on/off vin+ vin - i on/off v on/off vout+ trim vout - ? ? ? ? ? ? ? ? ? ? ? k r down adj 22 . 10 % 511 100 % , , , ? ? ? ? ? ? ? ? ? ? ? ? set o desired o set o v v v
g e data sheet kstw010a0f barracuda * series; dc - dc converter power modules 36 - 75 vdc input; 3.3vdc, 10a output september 26, 2013 ?2013 general electric corporation. all rights reserved. page 8 feature descriptions (continued) where figure 12 . circuit configuration to increase output voltage. the combination of the output voltage adjustment and the output voltage initial tolerance must not exceed the allowable trim range of 8 0% to 110% of the nominal output voltage as measured between the vout+ and vout - pins. the kstw 010a0f power modules have a fixed current - limit set point. therefore, as the output voltage is adjusted down, the available output power is reduced. pre - bias vin under voltage test the module shall recover from uvlo [under voltage lock out] without protective shutdown from ocp or ovp or hard failure, when subjected to vin under voltage transients with the following conditions: vin(v) tdip (ms) co (uf) load (a) 48 5 0 0 48 5 2200 0 48 10 0 0 48 10 2200 0 48 5 0 15 48 5 2200 15 48 10 0 15 48 10 2200 15 60 5 0 0 60 5 2200 0 60 10 0 0 60 10 2200 0 60 5 0 15 60 5 2200 15 60 10 0 15 60 10 2200 15 thermal considerations the power modules operate in a variety of thermal environments; however, sufficient cooling should be provided to help ensure reliable operation. considerations include ambient temperature, airflow, module power dissipation, and the need for increased re liability. a reduction in the operating temperature of the module will result in an increase in reliability. the thermal data presented here is based on physical measurements taken in a wind tunnel, using automated thermo - couple instrumentation to monitor key component temperatures: fets, diodes, control ics, magnetic cores, ceramic capacitors, opto - isolators, and module pwb conductors, while controlling the ambient airflow rate and temperature. for a given airflow and ambient temperature, the module outpu t power is increased, until one (or more) of the components reaches its maximum derated operating temperature, as defined in ipc - 9592a. this procedure is then repeated for a different airflow or ambient temperature until a family of module output derating curves is obtained. figure 13. thermal test setup . heat transfer via convection increased airflow over the module enhances the heat transfer via convection. derating figures showing the maximum output current that can be delivered by each module versus local ambient temperature (t a ) for natural convection and up to 3m/s (600 ft./min) are shown in the respective characteristics curves section. please refer to the application note thermal characterization process for open - frame board - mounted power module s for a detailed discussion of thermal aspects including maximum device temperatures. vin 5v tdip tfall = 10us trise = 5us ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? k v r set o up adj 22 . 10 % 511 % 225 . 1 %) 100 ( 11 . 5 , 100 % , , , ? ? ? ? ? ? ? ? ? ? ? ? set o set o desired o v v v
ge data sheet kstw010a0f barracuda* series; dc - dc converter power modules 36 - 75vdc input; 3.3vdc, 10a output september 26, 2013 ?2013 general electric corporation. all rights reserved. page 9 thermal considerations (continued) output current, i o (a) local ambient temperature, t a ( ? figure 1 4 . output current derating for the open frame kstw 010a0f in the transverse orientation; airflow direction from vin(+) to vin( - ); vin = 48 v. the thermal reference point, t ref , used in the spec ifications is shown in figure 15 . for reliable operation this temperature should not exceed 11 1 o c. figure 15 . t ref temperature measurement location. emc requirements f igure 1 6 shows a maximum filter configuration to meet the conducte d emission limits of en55022 class b. notes: c1 and c 4 are low impedance smt ceramics. ci see figure 7 c1, c4 2.2uf , 100v, 1210 c2, c3 1210y1k50103kxtdwv, 10nf, 1500v ( *2 ) rdhx223k302hkt, 22nf, 3000v (holystone) c5, c6 grm32dr73a153kw01l, 15nf, 1000v ( *2 ) rdhx333k302hkt, 33nf, 3000v (holystone) 202s48w334kt, 33nf, 2000v (johanson) figure 16 . suggested configuration for en55022 class b. figure 17 . emc signature using above filter, kstw 010a0f . for further information on designing for emc compliance, please refer to the fltr100v10 data sheet (fds01 - 043eps). layout considerations the kstw 010a0f power module series are low profile in order to be used in fine pitch system card architectures. as such, component clearance between the bottom of the power module and the mounting board is limited. avoid placing copper areas on the outer layer directly underneath the power module. also avoid placing via interconnects underneath the power module. for additional layout guide - lines, refer to the fltr100v10 data sheet. the kstw 010a0f family of power modules is available for either through - hole (th) or s urface mount (smt) soldering. through - hole soldering information the rohs - compliant (z codes) through - hole products use the sac (sn/ag/cu) pb - free solder and rohs - compliant components. they are designed to be processed through single or dual wave soldering machines. the pins have an
g e data sheet kstw010a0f barracuda * series; dc - dc converter power modules 36 - 75 vdc input; 3.3vdc, 10a output september 26, 2013 ?2013 general electric corporation. all rights reserved. page 10 layout considerations (continued) rohs - compliant finish that is compatible with both pb and pb - free wave soldering processes. a maximum preheat rate of 3 ? c/s is suggested. the wave preheat process should be such that the temperature of the power module board is kept below 210 ? c. for pb solder, the recommended pot temperature is 260 ? c, while the pb - free solder pot is 270 ? c max. not all rohs - compliant through - hole products can be processed with paste - through - hole pb or pb - free reflow process. if additional information is needed, please consult with your ge representative for more details. surface mount information pick and place the kstw - sr series of dc - to - dc power converters use an open - frame construction and are designed for surface mount assembly within a fully automated manufacturing process. the kstw - sr series modules are designed to use the main magnetic component surface to allow for pick and place. note: all dimensions in mm [in] . figure 18 . pick and place location. z plane height the z plane height of the pick and place location is 7.50mm nominal with an rss tolerance of +/ - 0.25 mm. nozzle recommendations the module weight has been kept to a minimum by using open frame construction. even so, they have a relatively large mass when compared with conventional smt components. variables such as nozzle size, tip style, vacuum pressure and placement speed should be considered to optimize this process. the minimum recommended nozzle diameter for reliable operation is 5mm. the maximum nozzle outer diameter, which will safely fit within the allowable component spacing, is 6.5mm. oblong or oval nozzles up to 11 x 6 mm may also be used within the space available. for further information please contact your local ge technical sales representative. reflow soldering information these power modules are large mass, low thermal resistance devices and typically heat up slower than other smt components. it is recommended that the customer review data sheets in order to customize the solder reflow profile for each application board assembly. the following instructions must be observed when smt soldering these units. failure to observe the se instructions may result in the failure of or cause damage to the modules, and can adversely affect long - term reliability. there are several types of smt reflow technologies currently used in the industry. these surface mount power modules can be reli ably soldered using natural forced convection, ir (radiant infrared), or a combination of convection/ir. the recommended linear reflow profile using sn/pb solder is shown in figure 19 and 20 . for reliable soldering the solder reflow profile should be esta blished by accurately measuring the module s pin connector temperatures. reflow temp ( ? c) reflow time (s) figure 19 . recommended reflow profile for sn/pb solder. max temp solder ( ? c) time limit (s) figure 20 . time limit, t lim , curve above 205 o c reflow . lead free soldering the C z version smt modules of the kstw 010a0f series are lead - free (pb - free) and rohs compliant and are compatible in a pb - free soldering process . failure to observe the instructions below may result in the failure of or cause damage to the modules and can adversely affect long - term reliability.
ge data sheet kstw010a0f barracuda* series; dc - dc converter power modules 36 - 75vdc input; 3.3vdc, 10a output september 26, 2013 ?2013 general electric corporation. all rights reserved. page 11 surface mount information (continued) pb - free reflow profile power systems w ill comply with j - std - 020 rev. d (moisture/reflow sensitivity classification for nonhermetic solid state surface mount devices) for both pb - free solder profiles and msl classification procedures. this standard provides a recommended forced - air - convection reflow profile based on the volu me and thickness of the package (table 4 - 2). the suggested pb - free solder paste is sn/ag/cu (sac). the recommended linear reflow profile using sn/ag/cu solder is shown in figure 21 . figure 21 . recommended linear reflow profile using sn/ag/cu solder. msl rating the kstw 010a0f series smt modules have a msl rating of 2a . storage and handling the recommended storage environment and handling procedures for moisture - sensitive surface mount packages is detailed in j - std - 033 rev. a (handling, packing, shipping and use of moisture/reflow sensitive surface mount devices). moisture barrier bags (mbb) with desiccant are required for msl ratings of 2 or greater. these sealed packages should not be broken until time of use. once the original package is broken, the floor life of the product at conditions of ? 30c and 60% relative humidity varies accord ing to the msl rating (see j - std - 033a). the shelf life for dry packed smt packages will be a minimum of 12 months from the bag seal date, when stored at the following conditions: < 40 c, < 90% relative humidity. post solder cleaning and drying considera tions post solder cleaning is usually the final circuit - board assembly process prior to electrical board testing. the result of inadequate cleaning and drying can affect both the reliability of a power module and the testability of the finished circuit - boa rd assembly. for guidance on appropriate soldering, cleaning and drying procedures, refer to ge board mounted power modules: soldering and cleaning application note (ap01 - 056eps). per j - std - 020 rev. d 0 50 100 150 200 250 300 reflow time (seconds) reflow temp (c) heating zone 1c/second peak temp 260c * min. time above 235c 15 seconds *time above 217c 60 seconds cooling zone
g e data sheet kstw010a0f barracuda * series; dc - dc converter power modules 36 - 75 vdc input; 3.3vdc, 10a output september 26, 2013 ?2013 general electric corporation. all rights reserved. page 12 mechanical outline for kstw 010a0f surface - mount module dim ensions are in millimeters and [inches] . tolerances: x.x mm ? 0.5 mm [ x.xx in. ? 0.02 in.] (unless otherwise indicated) x.xx mm ? 0.25 mm [ x.xxx in ? 0.010 in.] top view side view bottom view pin function 1 v in(+) 2 on/off 3 v in( - ) 4 v o( - ) 5 sense ( - ) 6 trim 7 sense (+) 8 vo (+)
ge data sheet kstw010a0f barracuda* series; dc - dc converter power modules 36 - 75vdc input; 3.3vdc, 10a output september 26, 2013 ?2013 general electric corporation. all rights reserved. page 13 mechanical outline for kstw 010a0f through hole module dim ensions are in millimeters and [inches] . tolerances: x.x mm ? 0.5 mm [ x.xx in. ? 0.02 in.] (unless otherwise indicated) x.xx mm ? 0.25 mm [ x.xxx in ? 0.010 in.] top view side view * optional pin lengths shown in device option table bottom view pin function 1 v in(+) 2 on/off 3 v in( - ) 4 v o( - ) 5 sense ( - ) 6 trim 7 sense (+) 8 vo (+)
g e data sheet kstw010a0f barracuda * series; dc - dc converter power modules 36 - 75 vdc input; 3.3vdc, 10a output september 26, 2013 ?2013 general electric corporation. all rights reserved. page 14 recommended pad layout for surface mount and through hole module dim ensions are in millimeters and [inches] . tolerances: x.x mm ? 0.5 mm [ x.xx in. ? 0.02 in.] (unless otherwise indicated) x.xx mm ? 0.25 mm [ x.xxx in ? 0.010 in.] surface mount pad layout top view through - hole pad layout for .025 x .030 rectangular pin, use a .050 diameter plated through hole for .062 diameter pin, use a .076 diameter plated through hole.
ge data sheet kstw010a0f barracuda* series; dc - dc converter power modules 36 - 75vdc input; 3.3vdc, 10a output september 26, 2013 ?2013 general electric corporation. all rights reserved. page 15 packaging details the kstw 010a0f series smt versions are supplied in tape & reel as standard. details of tape dimensions are shown below. modules are shipped in quantities of 140 modules per reel. tape dimensions dimensions are in millimeters . reel dimensions outside diameter: 330mm inside diameter: 178mm tape width: 56mm tray dimensions the kstw 010a0f - series through hole versions are supplied in trays as standard. details of tray dimensions are shown below. modules are shipped in quantities of 75 modules per box. dimensions are in millimeters. tolerances: x.x mm ? 0.5 mm (unless otherwise indicated) x.xx mm ? 0.25 mm material pet (1mm) max surface resistivity 10 9 - 10 11 ? /pet color clear capacity 25power modules min order quantity 75pcs (1 box of 3 full trays + 1 empty top tray)
g e data sheet kstw010a0f barracuda * series; dc - dc converter power modules 36 - 75 vdc input; 3.3vdc, 10a output contact us for more information, call us at usa/canada: +1 888 546 3243 , or +1 972 244 9288 asia - pacific: +86.021.54279977*808 europe, middle - east and africa: +49.89.878067 - 280 india: +91.80.28411633 www.gecriticalpower.com september 26, 2013 ?2013 general electric corporation. all rights reserved. version 1.0 ordering information please contact your ge sales representative for pricing, availability and optional features. table 1 . device code s product codes input voltage output current output voltage remote on/off logic connector type comcodes kstw 010a0f 41z 48v ( 36 - 75vdc) 10 3.3 v negative through hole 15003 1227 kstw 010a0f 41 - srz 48v ( 36 - 75vdc) 10 3.3 v negative surface mount 15003 1226 table 2 . de vice options characteristic definition form factor k k = 1 /16th brick family designator st st = low power barracuda* series input voltage w w = wide range, 36v-75v output current 010a0 010a0 = 010.0 amps maximum output current output voltage f f=3.3v nominal omit = default pin length shown in mechanical outline figures 6 6 = pin length: 3.68 mm 0.25mm , (0.145 in. 0.010 in.) 8 8 = pin length: 2.79 mm 0.25mm , (0.110 in. 0.010 in.) omit = positive logic 1 1 = negative logic customer specific xy xy = customer specific modified code, omit for standard code omit = standard open frame module sr s = surface mount connections: r = tape & reel packaging omit = rohs 5/6, lead based solder used z z = rohs 6/6 compliant, lead free ratings options pin length action following protective shutdown 4 4 = auto-restart following shutdown (overcurrent/overvoltage) must be ordered on/off logic mechanical features rohs character and position

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