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FEATURES
* * * * * * -55C to +125C 12 to 40 VDC input Sync on HUM-70 Reduce hold-up capacitance by 80% Powers DC/DC converters with 28 Vin nominal Hold-up time HUM-40 15 s/F HUM-70 8.6 s/F Low power flag Inhibit function
HOLD UP MODULE 28 VOLT INPUT
HUMMER MODULE 40 OR 70 WATTS
MODELS
POWER OUTPUT HUM-40 40 watts HUM-70 70watts
* *
Size (max.): HUM-40, non flanged, Case F2 1.950 x 1.350 x 0.415 inches (49.53 x 34.29 x 10.54 mm) HUM-40, flanged, Case J2 2.720 x 1.350 x 0.415 inches (69.09 x 34.29 x 10.54 mm) HUM-70 Case U1 1.505 x 3.005 x 0.400 inches (38.23 x 76.33 x 10.16 mm) See Section B8, cases F2, J2, and U1, for dimensions. Weight: HUM-40 50 grams max. (flanged 60 grams typical) HUM-70 70 grams max. Screening: Standard or ES. See Section C2 for screening option and Section A5 for ordering information.
DESCRIPTION
Interpoint's HUMMERTM Hold-Up Module Series provides a single product solution to the problem of maintaining electronic system operation during input power drop-out, typically reducing bulk capacitance requirements by more than 80%. The HUMMER module is compatible with the Interpoint DC/DC converters in Section B1 that have a 28 VDC nominal input and a high input line of 40 VDC. The traditional procedure for providing hold-up during power loss is to buffer the device with enough bulk capacitance to allow a controlled shutdown to occur or an alternative power source to be brought on line. The problem with this approach is that very large capacitor banks are required because the capacitors are charged at the relatively low voltage at which power fails. The HUMMER Hold-Up Module provides an alternative with two important advantages: 1) it effectively reduces the low line voltage for normal DC/DC converter operation to 12 VDC thereby reducing power drop-out events, and 2) it charges hold-up capacitors to 40 volts, reducing the capacitance needed to produce a given hold-up time.
GENERAL OPERATION
The HUMMER module and two external components (a hold-up capacitor and a diode) are connected between the line source and the DC/DC converter as shown in Figure 3 (HUMMER Module System Block Diagram.) If an EMI filter is employed, the HUMMER module is connected between the filter and the converter). The module first charges the external capacitor to 40 volts, and then allows the converter to operate off the line voltage. When the line voltage drops to between 12 to 18 VDC, a boost converter in the module supplies an output at the capacitor charging voltage (40 VDC). If power fails (the input voltage drops below 12 VDC), the converter is powered from the external hold-up capacitor.
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1
HUMMER SERIES 40 OR 70 WATTS
ABSOLUTE MAXIMUM RATINGS
HOLD UP MODULE
SYNC AND INHIBIT
Sync (HUM-70 only) * Range 525 min to 625 max kHz * Duty cycle 40% min to 60% max * Logic low 0.8V, max * Logic high 4.5 V, min * Referenced to input common * If sync is not used, leave unconnected Inhibit TTL Open Collector * Logic low (output disabled) Logic low voltage 0.8 V max Inhibit pin current 15 mA * Referenced to input common * Logic high (output enabled) Open circuit voltage 10 V typical
Output Power * HUM-40 40 watts * HUM-70 70 watts Input Voltage Range * 12 to 50 continuous * 80 V for up to 50 ms Lead Soldering Temperature (10 sec per lead) * 300C Storage Temperature Range (Case) * -65C to +135C
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range * 12 to 40 VDC continuous Case Operating Temperature (Tc) * -55 to +125C full power
Electrical Characteristics: 25C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
HUM-40 PARAMETER OUTPUT VOLTAGE OUTPUT POWER INPUT VOLTAGE INPUT RIPPLE CURRENT INPUT CURRENT CONDITION CEXT TERMINAL CONTINUOUS PEAK, 2 SEC CONTINUOUS TRANSIENT 50 ms 2 MHz Bandwidth VIN = 28V, VCS OPEN VIN = 28V, INHIBITED VIN = 12V, FULL LOAD VIN = 40V, FULL LOAD EFFICIENCY VIN = 22V, FULL LOAD VIN = 12V, FULL LOAD HOLD-UP TIME POWER FAIL FLAG THRESHOLD CAPACITOR VOLTAGE CONTROLLED SWITCH CAP CHARGED FLAG THRESHOLD FULL LOAD HIGH, OPEN CIRCUIT LOW, SHORT RETURN OPEN CLOSED HIGH, OPEN CIRCUIT LOW, SHORT RETURN MIN 39 -- -- 12 -- -- -- -- -- 92 87 80 15 14.0 11.5 22 18 34 19.5 MAX 40 40 60 50 80 100 90 10 4.6 -- -- -- -- 14.5 12.0 24 19 36 20.5 HUM-70 MIN 39 -- -- 12 -- -- -- -- -- 92 87 80 8.6 14.0 11.5 22 18 34 19.5 MAX 40 70 100 50 80 100 90 10 8.6 -- -- -- -- 14.5 12.0 24 19 36 20.5 VDC VDC s/F VDC % VDC V mA p-p mA A UNITS VDC W
Notes 1. Full load for specifications is 40 W for HUM-40 and 70 W for HUM-70.
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2
HOLD UP MODULE
PIN OUT Pin 1 2 3 4 5 6 7 8 9 10 11 12 HUM-40 (40 Watt) No connection VCS (Voltage Control Switch) + CEXT (Ext. Capacitor, Positive) CEXT Return (Ext. Capacitor, Return) Input Common Positive Input Case Ground Cap Charged Flag Inhibit Power Fail Flag N/A N/A HUM-70 (70 Watt)
HUMMER SERIES 40 OR 70 WATT
Sync Cap Charged Flag Inhibit Power Fail Flag No connection No connection VCS (Voltage Control Switch) + CEXT (Ext. Capacitor, Positive) CEXT Return (Ext. Capacitor, Return) Input Common Positive Input No connection
Dot on top of cover indicates pin one.
Angled corner indicates pin one.
1
2
3
4
5
1 2 3 4
12
BOTTOM VIEW HUM-40 FLANGED AND NON-FLANGED
See Section B8, cases F2, and J2, for dimensions. 9 8 7
TOP VIEW HUM-70 (Pin side, marked side) See Section B8, case U1, for dimensions.
11 10 9 8 7
10
6
5 6
Dotted line outlines flanged package option.
FIGURE 1: HUM-40 PIN OUT
FIGURE 2: HUM-70 PIN OUT
MODEL NUMBERING KEY
HUM - 40 Base Model Output Power Case Option (Non-flanged case has no designator in this position) Screening (Standard screening has no designator in this position.) F / ES Base Model Output Power Screening (Standard screening has no designator in this position.) HUM - 70 / ES
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3
HUMMER SERIES 40 OR 70 WATT
28 VDC EMI FILTER
(IF USED)
HOLD UP MODULE
DC-DC CONVERTER LOAD +VIN
HUMMER VCS HOLD-UP MODULE CAPACITOR
CHARGED +CEXT CEXT1
+VIN INHIBIT
+VOUT
28 VDC RETURN
VIN RETURN
VOUT RETURN
CASE GROUND
CEXT RETURN VIN RETURN
POWER FAIL
INHIBIT
1. EXTERNAL HOLDUP CAPACITOR
FIGURE 3: HUMMER MODULE SYSTEM BLOCK DIAGRAM
DETAILED OPERATIONAL DESCRIPTION
The detailed operation of the HUMMER module is divided into 4 operations: Initialization and Charging, Normal Operation, Low Line Operation, and Power Fail Operation. For details, refer to the following text, Figure 4 (HUMMER Module Block Diagram) and Figure 5 (HUMMER Module Signal Diagram).
1. INITIALIZATION AND CHARGING
As the input voltage ramps up to 8 to 10 volts, the internal HUMMER module circuits are biased to provide correct output states on all flags. As the input reaches 14 VDC, the Power Fail flag (active low) is released, the voltage control switch (VCS) is closed, and the module begins operating in a boost mode to charge the external capacitor to 40 volts. At this point, if the recommended connection has been made between the Capacitor Charged pin and the inhibit pin of the converter as shown in Figure 3, all of the module energy is dedicated to charging the capacitor and the converter will be inhibited until the capacitor charge reaches 36 V. If this connection has not been made, the energy available to charge the capacitor will be the difference between the current required by the converter's load and the current capacity of the HUMMER module.
Note: The HUMMER module is rated at a total operating power more than its output rating in order to allow it to both deliver a full load and to continue charging the external capacitor (the HUM-40, for example, is rated at 40 W output and 60 W total operating power, allowing it to deliver 40 W to a load and charge a capacitor at 10 to 20 J/sec). However, if the input voltage ramps up slowly into a full converter load, the total power drawn at low voltage could send the module into current limit which would shut the unit down. When the input voltage reaches approximately 22 VDC, the VCS is opened, isolating the stored charge on the external capacitor and allowing the converter to operate directly from the input power bus via the external system diode (unless the converter is still inhibited by the connection between the Capacitor Charged pin and converter's inhibit pin) while the capacitor continues to charge. When the charge on the external capacitor reaches approximately 35 volts (80% of a full charge), the Capacitor Charged flag will be asserted (removing the inhibit from the converter if applicable) and the HUMMER module will be in normal operation.
VCS
+VIN
INPUT CURRENT LIMIT
+CEXT
+ -
PWM
+ -
VIN RETURN CASE GROUND
+ -
CEXT RETURN
CURRENT SENSE POWER FAIL INHIBIT CAPACITOR CHARGED
FIGURE 4: HUMMER MODULE BLOCK DIAGRAM
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4
HOLD UP MODULE
2. NORMAL OPERATION
Normal operation continues with the capacitor charged and the input line voltage between 18 and 40 VDC. During this time, the converter will operate from the line voltage through the external diode. When the external capacitor reaches its final charge of 40 volts, the HUMMER module enters an idle state, consuming only enough power to keep the capacitor charged. Idle state power for the module is approximately 1 watt. Note: The HUMMER module itself can sustain continuous voltages of up to 50 VDC and voltage spikes of 80 volts for up to 50 msec, and it will pass these voltages on to the converter through the external bypass diode. If these ratings exceed the rating of the converter, care should be taken to control the line voltage to prevent damage to the converter. Normal Operation will continue indefinitely until the input voltage drops below 18 VDC.
HUMMER SERIES 40 OR 70 WATTS
3. LOW LINE OPERATION
Low line operation occurs when the input voltage drops to a range between 18 and 12 volts. When the voltage reaches 18 VDC, the HUMMER module's VCS closes and then operates in a boost mode. In this mode, the HUMMER module supplies 40 VDC through VCS to the converter, and at the same time maintains the charge on the capacitor. The module will operate indefinitely in this low line region until the input line voltage drops below 12 VDC.
4. POWER FAIL OPERATION
When the input line voltage drops to 12 VDC, the Power Fail flag is asserted (pulled low) and the HUMMER module's boost mode is disabled. At this point, the converter load is powered by the stored energy in the external capacitor. When the voltage on the external capacitor falls to 20 VDC, the Capacitor Charged flag is released (pulled low), indicating that 90% of the usable stored energy has been depleted. If the connection has been made between the Capacitor Charged pin and the converter's Inhibit pin, the converter will also be inhibited.
30 -
-- VIN
= 22
VIN
20 - 10 - 0-
-- VIN = 14 -- VIN = 10
VIN = 19--
-- VIN
= 23 VIN = 19--
-- VIN
= 12
40 - 30 - VCS WITH DIODE 20 - 10 - 0-
VCS CLOSED
-- VCAP
-- VCAP
VIN
VIN
VCS CLOSED RAMP DOWN ON EXT CAP
40 - 30 - EXT CAP 20 - 10 - 0-
VCAP = 35--
-- VCAP
= 40
VCAP = 20--
POWER FAIL CAP CHARGED
OPEN
0-
VIN = 10 - FLAGS ACTIVE VIN = 14 - POWER FAIL FLAG
VCAP= 20 - CAP CHARGED FLAG
0-
VIN = 12 - POWER FAIL FLAG VCAP = 35 - CAP CHARGED
{
INITIALIZATION & CHARGING
NORMAL LOW OPERATION LINE OPERATION
{
NORMAL OPERATION
FIGURE 5: HUMMER MODULE SIGNAL DIAGRAM
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{
POWER FAIL OPERATION
{
{
V= 10 - FLAGS NOT ACTIVE
VIN = 18 - VCS CLOSED
VIN = 18 - VCS CLOSES
VIN = 23 - VCS OPENS
VIN = 22-VCS OPENS
5
HUMMER SERIES 40 OR 70 WATT
PIN CONNECTIONS EXTERNAL CAPACITOR SELECTION
HOLD UP MODULE
CAUTION: Do not connect the HUMMER module's input return pin to the Cext return. This connection will short the module's current limit sense resistor resulting in excessive currents that can also damage the DC/DC converter.
The external capacitor supplies the energy for the DC/DC converter's operation during power failure. Interpoint recommends CLR-79 or CLR-81 wet slug tantalum capacitors because of their high CV properties and extended temperature operation. An alternative choice is a high quality grade aluminum electrolytic. To ensure maximum system stability, the capacitors should have a minimum ESR of 0.25 ohms, a minimum capacitance of 330 uF, and a maximum capacitance of 1 F. The capacitance needed and derating required will depend on the system requirements, the load, and the efficiency of the converter being supplied power. The amount of capacitance for a given holdup time is determined by the formula
INHIBIT FUNCTION
The HUMMER module's inhibit pin disables the internal boost converter when the Inhibit pin is pulled low. This is accomplished by an external connection to the Vin Return pin or Vout Return pin. The inhibit open circuit voltage is is 10 V and the short circuit current is 15 mA. It is open-collector TTL or CMOS compatible. The pin is diode-isolated and can be reverse biased to include the input potential. Power Fail and Capacitor Charged flags are operable when the unit is inhibited.
C=
2Pt 2 - V 2) n (V1 2
FLAG FUNCTIONS
where:
POWER FAIL FLAG
The Power Fail Flag output is implemented by a comparator monitoring the input voltage. (The comparator is also used to inhibit HUMMER module's operation; note however, that the flag is functional when the unit is inhibited.) The input voltage threshold is nominally 14.5 V to indicate that sufficient voltage is present for operation. The comparator output drives an internal MOSFET buffer which connects to the external Power Fail pin. The buffer is of an open drain configuration and requires an external pull-up resistor and voltage for indication. The maximum recommended pull-up voltage is 36 V. The maximum short circuit should not exceed 10mA. The buffer is protected by a shunt zener diode connected between the drain and the Cext Return. In normal operation, the input voltage exceeds the 14 V threshold and the output is high (open drain). When the input voltage is below 12 V the output is low, and the MOSFET conducts to the Return.
C is required capacitance (in Farads). P is power to the load (output of converter) to be held up (in watts) n is the efficiency of the converter at rated load (in %) t is required hold-up time (in seconds) V1is charged capacitor voltage (in volts) V2is low-line voltage of DC/DC converter (in volts)
For a 50 msec hold-up of 30 W output from a converter with a efficiency of 80% and a 16 VDC low line and a 40 V capacitor charge:
C=
(2) * (30) * (0.050) 3 = 2790 F ; C= (0.80) * (402 - 162) 1075.2
CAPACITOR CHARGED FLAG
A Capacitor Charged Flag is implemented by a comparator monitoring the HUMMER module's +Cext terminal. The capacitor voltage threshold is 36 V, at which point the external capacitor is charged to 80% of its maximum value. When the capacitor discharges, the flag resets at 20 VDC indicating that approximately 10% of the charge remains. The comparator output drives a MOSFET buffer amplifier, and the buffer output connects to the Cap Charged pin. The buffer is of an open drain configuration and requires a pull-up resistor and voltage for indication. The maximum recommended pull-up voltage is 36 V. The maximum short circuit current should not exceed 10 mA. During normal operation, the input is 40 V, exceeding the threshold, and the output is high (open circuit). When the capacitor voltage is below 20 V, the output is low, and the MOSFET conducts to the Return. The HUMMER module must be supplied with a minimum of 8 VDC for biasing internal circuits to obtain correct output states.
Note: The output power delivered by the HUMMER module to deliver 30 W to the load with an 80% efficient converter is 37.5 watts. The HUM-40 is rated to deliver a maximum of 40 watts to the input of the converter. Interpoint data sheets for individual converters supply an efficiency curve vs. line and load for each converter model. In calculations, assume the efficiency rating for the nominal (usually 28 V) line condition. Note: If the Capacitor Charged pin is connected to the converter's inhibit pin as shown in Figure 3, use 20 V as the low line figure in the formula.
DIODE SELECTION AND CONNECTION
An external diode is required for system operation as shown in Figure 3, with the diode anode connected to the HUMMER module's VCS pin and the DC/DC converter's +V in pin. This diode supplies input voltage to the converter when the internal voltage control switch (VCS) is open. The diode should be selected with a minimum current rating of 5 A and a voltage breakdown rating of 50 V or greater (similar to Motorola MDR1060 or equivalent).
6
HUM 268621 Rev B All technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. HUMMER is a trademark of Interpoint. Copyright (c) 1994 - 2003 Interpoint Corporatation. All rights reserved.
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CASE F
CASES
Dot on top of case indicates pin one Materials Header Case F1 Cold Rolled Steel/Nickel/Gold Cases F2 - F4 Cold Rolled Steel/Nickel/Tin Cover Case F1 Kovar/Nickel Cases F2 - F4 Cold Rolled Steel/Nickel/Tin Pins #52 alloy (all cases) MHV Series Triple - compression glass seal MTR Series Triple, case F1 - ceramic seal MTR Series Triple, case F2 - compression glass seal HUM40 - compression glass seal or ceramic seal Case F3 - compression glass seal Case F4 - compression glass seal or ceramic seal Case dimensions in inches (mm) Tolerance 0.005 (0.13) for three decimal places 0.01 (0.2) for two decimal places unless otherwise specified
CASE F BOTTOM VIEW See Figures 20 - 23 for pin configuration
1.350 max (34.29)
1.950 max (49.53) CAUTION Heat from reflow or wave soldering may damage the device. Solder pins individually with heat application not exceeding 300C for 10 seconds per pin.
FIGURE 19: CASE F MAXIMUM DIMENSIONS
BOTTOM VIEW CASE F1 MTR Series Triple and MHV Series Triple: Screening - Standard, ES, or 883
Bathtub Platform
Seam Seal
1.170 (29.72) 0.040 dia. (1.02)
Dot on top of case indicates pin one
1
2
3
4
5
MHV Series
MTR Series
0.170 (4.32) 0.000 0.25 (6.4) 0.405 max (10.29) 0.000 0.000
10
9
8
7
6
0.170 (4.32)
0.570 (14.48)
0.970 (24.64)
1.370 (34.80)
0.405 max (10.29)
Note: Although every effort has been made to render the case drawings at actual size, variations in the printing process may cause some distortion. Please refer to the numerical dimensions for accuracy.
B8-12
0.25 (6.4)
FIGURE 20: CASE F1
1.770 (44.96)
0.000
CASES
BOTTOM VIEW CASE F2 HUM-40: Screening - Standard or ES
Solder Seal
1.170 (29.72) 0.040 dia. (1.02)
CASE F
Squared corner and dot on top of case indicate pin one.
1
2
3
4
5
Solder Tip-off
0.170 (4.32) 0.000 0.415 0.015 (10.54 0.38) 0.250/0.300 (6.35/7.62) 0.000 0.000
10
9
8
7
6
0.170 (4.32)
0.570 (14.48)
0.970 (24.64)
1.370 (34.80) 3
FIGURE 21: CASE F2
BOTTOM VIEW CASE F3 MRH Series: Screening - Standard or ES
Solder Seal
1.170 (29.72) 0.040 dia. (1.02)
Squared corner and dot on top of case indicate pin one.
1
2
1.770 (44.96) 4
5
Solder Tip-off
0.170 (4.32) 0.000 0.250/0.300 (6.35/7.62) 0.455 max (11.56 ) 0.000 0.000
10
9
8
7
6
0.170 (4.32)
0.570 (14.48)
0.970 (24.64)
1.370 (34.80)
FIGURE 22: CASE F3
1.770 (44.96)
B8-13
CASE J
CASES
Dot on top of case indicates pin one
CASE J BOTTOM VIEW See Figures 36 - 40 for pin configuration
1.350 max (34.29)
2.720 max (69.09)
Flange Thickness: Cases J1 and J5 Case J2 Cases J3 and J4
0.060 (1.52) 0.073 (1.85) max 0.067 +0.005/-0.007 (1.70 +0.13/-0.8)
Materials Header Case J1 Cold Rolled Steel/Nickel/Gold Cases J2 - J5 Cold Rolled Steel/Nickel/Tin Cover Case J1 Kovar/Nickel Case J2 - J5 Cold Rolled Steel/Nickel/Tin Pins #52 alloy (all cases) Case J1 MHV Series Triple - compression glass seal MTR Series Triple - ceramic seal Cases J2 - J5 compression glass seal Case dimensions in inches (mm) Tolerance 0.005 (0.13) for three decimal places 0.01 (0.2) for two decimal places unless otherwise specified CAUTION Heat from reflow or wave soldering may damage the device. Solder pins individually with heat application not exceeding 300C for 10 seconds per pin.
FIGURE 35: CASE J MAXIMUM DIMENSIONS
Note: Although every effort has been made to render the case drawings at actual size, variations in the printing process may cause some distortion. Please refer to the numerical dimensions for accuracy.
B8-22
CASE J
CASES
BOTTOM VIEW CASE J2 (Rev B) Flanged case: Designator required in Case Option position of model number. HUM-40 Module: Screening - Standard or ES
Solder Seal
1.173 (29.79 0.040 dia. (1.02) 0.673 (17.09)
Squared corner and dot on top of case indicate pin one.
1
2
3
4
5
0.162 dia. (4.11)
HUM-40 Module
Solder Tip-off
0.173 (4.39) 0.000 0.25 (6.4) 0.000 0.210 (5.33) 0.170 (4.32) 0.570 (14.48) 0.970 (24.64) 1.370 (34.80) 0.415 max (10.54) 1.770 (44.96) 0.000 2.150 (54.61tt) 5 0.162 dia (4.11) 6
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10
9
8
7
6
FIGURE 37: CASE J2
BOTTOM VIEW CASE J3 (Rev B) Flanged case: Designator required in Case Option position of model number. MRH Series: Screening - Standard or ES
Solder Seal
1.173 (29.79 0.040 dia. (1.02) 0.673 (17.09)
Squared corner and dot on top of case indicate pin one.
1
2
3
4
Solder Tip-off
0.173 (4.39) 0.000 0.25 (6.4) 0.210 (5.33) 0.170 (4.32) 0.570 (14.48) 0.970 (24.64) 1.370 (34.80) 0.455 max (11.56) 1.770 (44.96) 0.000 0.000 2.150 (54.61) 10 9 8 7
FIGURE 38: CASE J3
B8-24 Revised cases, mounting hole dimension corrected to 2.150 (20060626)
CASE U
CASES
Angled corner indicates pin one
1.505 max (38.23)
CASE U TOP VIEW (PIN SIDE) See Figures 55 and 56 for dimensions
3.005 (76.33) max. Note: Pins are shown for Case U1.
Materials Header Cold Rolled Steel/Nickel/Gold Cover Kovar/Nickel Pins #52 alloy/Gold compression glass seal Case dimensions in inches (mm) Tolerance 0.005 (0.13) for three decimal places 0.01 (0.2) for two decimal places unless otherwise specified CAUTION Heat from reflow or wave soldering may damage the device. Solder pins individually with heat application not exceeding 300C for 10 seconds per pin.
FIGURE 54: CASE U MAXIMUM DIMENSIONS
B8-36
CASES
TOP VIEW CASE U1 MFL Series and MHP Series: Screening - Standard, ES or 883 MFLHP Series, FMD270 EMI Filter, and FMD28-461SL EMI Filters: Screening - Standard or ES SMFL, SMFLHP, SMHP, and SSP Series; SFCS, and SFME EMI Filters: Screening - Standard, Class H or K HUM70 Module and LCM Module: Screening - Standard or ES
Angled corner indicates pin one. 1.505 (38.23) max. 1.380 (35.05) 1.250 (31.75) 1.050 (26.67) 0.850 (21.59) 0.650 (16.51) 0.450 (11.43) 0.250 (6.35) 0.120 (3.05) 0.000
0.400 (10.16) max.
CASE U
Seam Seal
0.23 (5.8) Lead Length 0.128 dia (3.25). 0.040 dia (1.02)
1 2 3 4 5 6
12 11 10 9 8 7
0.120 (3.05) 0.250 (6.35)
2.750 (69.85)
2.880 (73.15) 3.005 (76.33) max.
0.220 (5.59
FIGURE 55: CASE U1
0.050 (1.27) 0.000
0.000
B8-37
QA SCREENING 125C PRODUCTS
125C PRODUCTS
TEST (125C Products) PRE-CAP INSPECTION Method 2017, 2032 TEMPERATURE CYCLE (10 times) Method 1010, Cond. C, -65C to 150C Method 1010, Cond. B, -55C to 125C CONSTANT ACCELERATION Method 2001, 3000 g Method 2001, 500 g BURN-IN Method 1015, 160 hours at 125C 96 hours at 125C case (typical) FINAL ELECTRICAL TEST MIL-PRF-38534, Group A Subgroups 1 through 6: -55C, +25C, +125C Subgroups 1 and 4: +25C case HERMETICITY TESTING Fine Leak, Method 1014, Cond. A Gross Leak, Method 1014, Cond. C Gross Leak, Dip (1 x 10-3) FINAL VISUAL INSPECTION Method 2009 STANDARD /ES /883 (Class H)* yes yes yes
no no
no yes
yes no
no no
no yes
yes no
no no
no yes
yes no
no yes
no yes
yes no
no no yes
yes yes no
yes yes no
yes
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. *883 products are built with element evaluated components and are 100% tested and guaranteed over the full military temperature range of -55C to +125C. Applies to the following products (some models do not offer "883" screening, please refer to the individual series datasheets to determine what screening is available): MOR Series MHD Series MGH Series FMGA EMI Filter MFLHP Series MHV Series MCH Series FMSA EMI Filter MFL Series MHF+ Series FM-704A EMI Filter HUM Modules MHP Series MHF Series FMD/FME EMI Filter LCM Modules MTR Series MGA Series FMC EMI Filter LIM Modules MQO Series MSA Series FMH EMI Filter
C2-10

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