1 1-51 model 68 electrical standard resistance range, ohms 10 to 2meg standard resistance tolerance ?0% (<100 ohms = ?0%) input voltage, maximum 200 vdc or rms not to exceed power rating slider current, maximum 100ma or within rated power, whichever is less power rating, watts 0.5 at 85? derating to 0 at 125? end resistance, maximum 2 ohms actual electrical travel, turns, nominal 20 dielectric strength 900 vrms insulation resistance, minimum 1,000 megohms resolution essentially infinite contact resistance variation, maximum 1% or 1 ohm, whichever is greater environmental seal 85? fluorinert?(no leaks) temperature coefficient, maximum ?00ppm/? temperature range ?5? to +125? thermal shock 5 cycles, ?5? to +125? (1% ? rt, 1% ? vr) moisture resistance ten 24 hour cycles (1% ? rt, ir 1,000 megohms min.) shock, 6ms sawtooth 100g? (1% ? rt, 1% ? vr) vibration 20g?, 10 to 2,000 hz (1% ? rt, 1% ? vr) high temperature exposure 250 hours at 125? (2% ? rt, 2% ? vr) rotational life 200 cycles (3% ? rt) load life at 0.5 watts 1,000 hours at 70? (2% ? rt) resistance to solder heat 260? for 10 sec. (1% ? rt) mechanical mechanical stops clutch action, both ends torque, starting maximum 5 oz.-in. (0.035 n-m) weight, nominal .04 oz. (1.13 grams) model 68 3/8?square multiturn cermet trimming potentiometer fluorinert?is a registered trademark of 3m company. specifications subject to change without notice.
schematic diagram this surface metal adjustment screw .090/2.29 dia. with .020/0.51 wide x .025/0.64 min. depth max. (1) (2) (3) meniscus (typ) .19 .02 4.8 0.5 .03 0.8 .245 6.22 max. .18 4.6 min. terminal pins (3) dia. .020 .003 0.51 0.08 standard marking this surface min. standoff .015 .002 0.38 0.05 .187 .015 4.75 0.38 .375 .015 9.53 0.38 .12 .02 3.1 0.5 (2) (1) (3) .060 .015 1.524 0.38 .10 2.5 .187 .015 4.75 0.38 .10 2.5 .375 .015 9.53 0.38 .10 2.5 top adjustment (inch/mm) schematic diagram this surface max. standard marking this surface .15 .02 3.8 0.5 metal adjustment screw .090/2.29 dia. with .020/0.51 wide x .025/0.64 min. depth .375 .015 9.53 0.38 .062 .015 1.58 0.38 .060 .015 1.52 0.38 .12 .02 3.1 0.5 .245 6.22 terminal pins (3) dia. (3) (2) (1) min. .18 4.6 .015 0.38 .375 .015 9.53 0.38 .020 .003 0.51 0.08 .187 .015 4.75 0.38 .045 .015 1.14 0.38 .10 2.5 .10 2.5 model 68w side adjustment (inch/mm) model 68 1-52 model 68p
1 1-53 model 68 circuit diagram (1) (2) (3) cw notes mm inch metric equivalents, based on 1 inch = 25.4mm are rounded to the same number of significant figures as in the original english units and are provided for general information only. tolerances unless otherwise specified: linear = .01 inches (.25mm) angular = 2 degrees side adjustment (inch/mm) schematic diagram this surface standard marking this surface max. .245 6.22 metal adjustment screw .090/2.29 dia. with .020/0.51 wide x .025/0.64 min. depth .375 .015 9.53 0.38 .15 .02 3.8 0.5 terminal pins (3) dia. (3) (2) (1) min. .32 .02 8.1 0.5 .18 4.6 .375 .015 9.53 0.38 .020 .003 0.51 0.08 .060 .015 1.524 0.38 .187 .015 4.75 0.38 .045 .015 1.14 0.38 .10 2.5 .10 2.5 model 68x standard resistance values, ohms 10 200 5k 50k 500k 20 500 10k 100k 1meg 50 1k 20k 200k 2meg 100 2k 25k 250k
model 68 1-54 packaging ordering information 68 p r 10k lf model series pin style rohs compliant product code - optional resistance value resistance prefix 68 w r 10k lf tb pin style packaging option: tb = tubes (pin styles p, w, x) 68 w f r 10k lf tr pin style pin style suffix: (used with ap and tr packaging options. applicable to pin styles w & x only. "f" designates 0.70" lead length.) packaging option: ap = ammo pack tr = tape & reel (pin styles w, x only) standard: option: standard: boxes capacity = 100 units (68w) = 50 units (all other styles) option: tubes all units oriented with #1 pin to same side. pin style p w x magazine width = 0.57 0.33 0.33 height = 0.66 0.90 0.90 length = 20.9 20.4 24.4 capacity = 50 units 50 units 50 units option: tape & reel, ammo pack (available only for 68w and 68x) all units oriented with #1 pin to the right of the direction of feed. seat plane to centerline of sprocket hole = .71?(18.03 mm) tape width = 18 mm sprocket = single hole .50?spacing capacity = 1,000 units reel diameter = 14?(356 mm) ammo tape fold = 12?(305 mm) box = 1.8?x 13?x 10 (46mm x 330mm x 254mm) option:
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