t please refer to the list of part numbers when placing orders. st-32 surface mount cermet trimmers (single turn) part name 1 2 3 4 5 6 7 8 9 rotor terminal pin wiper base element o ring cover housing material flammability ul-94v-0 ul-94hb ul-94v-0 ag-pd cermet ruo 2 cermet stainless steel (sus 304) epoxy copper alloy, sn-cu-plated ceramic silicone rubber polyphenylenesulphide electrode resistive element multi metal alloy features rohs compliant rotor with a cross slot for ease of adjustment leaded terminals provide strong as adhesive strength against p.c.b. bending j-hook, gull wing and leaded terminal configurations sealed (washable: refer to a-328) part number designation s t - 3 2 e t a 1 0 0 ( 1 2 ) series name terminal pin e sn-cu (lead-free) form of packaging t taping (reel) blank bulk in plastic bag resistance code resistance value product shape (shape of terminal) "
( j-hook #
) gull wing internal structure 2 3 4 9 8 5 6 7 1 rohs compliant w specifications are subject to chan g e without notice.
specifications are subject to change without notice. specifications in this catalog are for reference. the formal specification sheets will be submitted upon request. copal elec t r o nic s st-32 surface mount trimmers list of part numbers shape of terminal form of packaging taping (reel) st-32eta st-32ea st-32etb st-32eb st-32etg st-32eg st-32eth st-32eh 500 pcs./reel 100 pcs./pack plastic bag pieces in package electrical characteristics nominal resistance range 10 ~ 2 m 20 % 0.125 w (70 c) 0 w (125 c) linear law (b) dc200 v or power rating, whichever is smaller 100 ma or power rating, whichever is smaller 210 (1 turn) 1 % or 2 , whichever is greater 1 % or 3 , whichever is greater ? 55 ~ 125 c 10 ~ 50 : 250 10 -6 /c maximum 100 ~ 2 m : 100 10 -6 /c maximum 1000 m minimum (dc500 v) ac500 v, 60 s approx. 0.05 g (st-32ea, eb) approx. 0.11 g (st-32eg, eh) resistance tolerance power ratings resistance law maximum input voltage maximum wiper current effective electrical angle end resistance c.r.v. operating temp. range temp. coefficient insulation resistance dielectric strength net weight adjustment position top adjustment a ( j-hook ) b ( gull wing ) g ( j-hook ) h ( gull wing ) side adjustment ? r/r change in total resistance s.s. setting stability a nominal resistance values ? a 10 a 20 50 100 200 300 500 1 k 2 k 3 k 5 k 10 k 20 k 30 k 50 k 100 k 200 k 500 k 1 m 2 m the products indicated by a mark are manufactured upon receipt of order basis. t the part numbers on the left are all available with the respective combination of (fig. 1). t verify the above part numbers when placing orders. t taping specification is not sold separately and must be purchased in reel units. mechanical characteristics mechanical angle 250 (1 turn) 5 mnm {51 gfcm} maximum 20 mnm {204 gfcm} minimum 100 cycles [ ? r/r ? (2 + 3 %)] 5 n {0.51 kgf} minimum 245 3 c, 2 ~ 3 s 5 n {0.51 kgf} 10 s width 90 mm, bend 3 mm, 5 s, 1 time 5 n {0.51 kgf} 10 s { } reference only operating torque stop strength rotational life thrust to rotor solderability shear (adhesion) substrate bending pull-off strength environmental characteristics test item test conditions specifications thermal shock ? 65 ~ 125 c (0.5 h), 5 cycles [ ? r/r ? 2 %] [s.s. ? 1 %] humidity ? 10 ~ 65 c (80 ~ 98 %), 10 cycles, 240 h [ ? r/r ? 2 %] shock 981 m/s 2 , 6 ms 6 directions for 3 times each [ ? r/r ? 1 %] [s.s. ? 1 %] vibration amplitude 1.52 mm or acceleration 196 m/s 2 , 10 ~ 2000 hz, 3 directions, 12 times each load life 70 c, 0.125 w, 1000 h [ ? r/r ? 3 %] [s.s. ? 1 %] low temp. operation ? 55 c, 2 h [ ? r/r ? 2 %] [s.s. ? 2 %] high temp. exposure 125 c, 250 h [ ? r/r ? 3 %] [s.s. ? 2 %] immersion seal 85 c, 60 s no leaks (no continuous bubbles) soldering heat [ ? r/r ? 1 %] fig.1 reflow profile for soldering heat evaluation ? reflow : two times maximum peak : 250 over 230 c pre heating zone 180 c ( c) 250 200 150 100 50 150 c 90 30 s 30 10 s soldering zone heating time temperature c +5 0 flow : 260 3 c as the temperature in a pot of molten solder, immersion from head of terminal to backside of board, 5 ~ 6 s, two times maximum. reflow : peak temperature 255 c (please refer to the profile below.) manual soldering 350 10 c, 3 ~ 4 s
specifications are subject to change without notice. specifications in this catalog are for reference. the formal specification sheets will be submitted upon request. copal elec t r o nic s st-32 surface mount trimmers maximum input ratings recommended p.c.b. pad outline dimensions nominal resistance values ( ) resistance code maximum input voltage (v) maximum wiper current (ma) a 10 11 1.00 100 a 20 21 1.58 79.1 50 51 2.50 50.0 100 12 3.53 35.4 200 22 5.00 25.0 300 32 6.12 20.4 500 52 7.91 15.8 1 k 13 11.2 11.2 2 k 23 15.8 7.91 3 k 33 19.4 6.45 5 k 53 25.0 5.00 10 k 14 35.4 3.54 20 k 24 50.0 2.50 30 k 34 61.2 2.04 50 k 54 79.1 1.58 100 k 15 112 1.12 200 k 25 158 0.79 500 k 55 200 0.40 1 m 16 200 0.20 2 m 26 200 0.10 (unit : mm) st-32ea, eg st-32eb, eh note) the zero point is the center of mounting. for reflow soldering the products indicated by a mark are manufactured upon receipt of order basis. 1.2 0.8 3.2 1.2 0 1.6 1.5 0.9 4.6 1 1.2 1.2 0.8 3.2 1.2 0 1.6 2.2 0.9 6 1 1.9
specifications are subject to change without notice. specifications in this catalog are for reference. the formal specification sheets will be submitted upon request. copal elec t r o nic s outline dimensions unless otherwise specified, tolerance : 0.3 (unit : mm) st-32ea top adjustment t note the terminal position. 1.5 2 0.5 3.4 1.9 3.5 2 3.4 2 2.1 0.05 2 C 0.7 1 3 cross slot for a 0 bit driver, depth : 0.45 resistance code 2 digits t = 0.12 production date code & lead-free identification mark 1 digit (location reversed every 2 years) 0.6 1 st-32eb top adjustment 1.5 2 0.5 3.4 1.9 4.4 2 3.4 2 2.1 0.05 2 C 0.7 1 3 cross slot for a 0 bit driver, depth : 0.45 resistance code 2 digits 1 t = 0.12 production date code & lead-free identification mark 1 digit (location reversed every 2 years) cw rotation 1 2 3 st-32 surface mount trimmers
specifications are subject to change without notice. specifications in this catalog are for reference. the formal specification sheets will be submitted upon request. copal elec t r o nic s ?
go
$y outline dimensions unless otherwise specified, tolerance : 0.3 (unit : mm) st-32eg side adjustment t note the terminal position. 1.5 0.5 4.7 1.9 2.6 3.6 cross slot for a 0 bit driver, depth : 0.45 resistance code 2 digits adjustment 0.2 3.5 2.4 1 1.1 1.7 1 2 C 0.6 31 2 t = 0.12 production date code & lead-free identification mark 1 digit (location reversed every 2 years) st-32eh side adjustment 1.5 0.5 4.7 1.9 2.6 3.6 cross slot for a 0 bit driver, depth : 0.45 resistance code 2 digits adjustment 0.2 3.5 2.4 1 1.3 1.7 1.4 2 C 0.6 3 1 2 t = 0.12 production date code & lead-free identification mark 1 digit (location reversed every 2 years) cw rotation 1 2 3 st-32 surface mount trimmers
specifications are subject to change without notice. specifications in this catalog are for reference. the formal specification sheets will be submitted upon request. copal elec t r o nic s unit of bulk in a plastic bag is 100 pcs. per pack. boxing of bulk in a plastic bag is performed with 500 pcs. per box. packaging specifications taping version is packaged in 500 pcs. per reel. orders will be accepted for units of 500 pcs., i.e., 500, 1000, 1500 pcs., etc. st-32eta, etb versions are boxed with 4 reels (2000 pcs.). st-32etg, eth versions are boxed with one reel (500 pcs.). maximum number of consecutive missing pieces = 2 leader length and reel dimension are shown in the diagrams below. embossed tape dimensions reel dimensions conforms to jis c 0806-3 in accordance with eiaj et-7200a (unit: mm) st-32eta, etb 13.4 1 (etg/eth) 17.4 1 (etg/eth) 15.4 1 (eta/etb) 13 (eta/etb) +1 0 (eta/etb) +1 0 180 0 C1.5 (st-32eta/etb) 21 0.8 13 0.2 2 0.5 60 254 2 (st-32etg/eth) (etg/eth) 50 min. 2 4 0.1 2 0.05 1.75 0.1 5.5 0.05 12 1.5 +0.1 0 8 0.1 1 3 0.3 0.1 2.5 installation example (st-32ea) direction of feed st-32etg, eth 2 4 0.1 2 0.1 1.75 0.1 5.5 0.1 12 1.5 +0.1 0 8 0.1 1 3 0.4 0.1 5.5 max. installation example (st-32eh) direction of feed st-32 surface mount trimmers empty filled empty 40 mm min. 20 pitches min. 400 mm min. direction of feed head end leader
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