document number: 51033 revision 19- j ul-02 www.vishay.com 86 P12 vishay sfernice for technical questions, contact sfer@vishay.com fully sealed container cermet potentiometers military and professional grade features 1 watt at 70c cecc 41 300 mil-r-94 full sealing low contact variation mechanical strength P12t P12q P12h mo del P12 potentiometers fully meet the requirements of cecc 41300 and also perform satisfactorily under the con- ditions speci ed by mil-r-94. dimensions in millimeters a c b cw (2) (3) (1) P12t panel cutout panel thickness: 4 max P12q panel cutout P12ty - P12qy P12tx - P12qx terminal spacing terminal spacing P12hl with spindle locking nut de shaft and panel sealing hardware circuit diagram 2 0.2 12 0.5 12 0.5 6.1 0.2 0.4 6.5 10.2 0.5 8 0.8 thread m6 x 0.75 10 wrench slot 0.6 x 1 deep ? 3 k = 9.5 m = 12.5 r = 22 tol. ?0.5 4.3 0.75 5.08 5.08 a b c 6.1 ?0.2 ? 6.5 ? 2.2 ? 2.2 6.1 ?0.2 ? 7.5 2 ?0.2 12 ?0.5 6.1 ?0.2 12 ?0.5 10.2 ?0.5 8 0.8 0.4 6.5 thread m7 x 0.75 10 wrench slot 0.8 x 1.4 deep ? 4 g = 22 tol. ?0.5 f = 12.5 e = 9.5 4.3 0.75 5.08 5.08 a b c 8 10.4 ?0.5 6.5 ?1 thread m6 x 0.75 or thread m7 x 0.75 ? 3 or ? 4 r = 22 or g tol. ?0.5 m = 12.5 or f k = 9.5 or e 4.3 5.085.08 0.75 0.4 10.16 12 ?0.5 12 ?0.5 10.16 a bc 5.08 5.08 3.8 min 6.9 ?0.5 0.9 12.9 ?0.5 10.16 0.5 1.25 10.5 ?0.5 r = 22 or g m = 12.5 or f k = 9.5 or e 8 12 ?0.5 5.08 5.08 0.75 thread m6 x 0.75 or thread m7 x 0.75 base level 12 ?0.5 ? 3 or ? 4 5.085.08 10.16 c ba slot 0.6 x 1 deep 2 ?0.2 12 ?0.5 6.1 ?0.2 12 ?0.5 0.4 6.5 10.2 ?0.5 12.5 11 ? 3 0.8 split bushing thread m6 x 0.75 10 wrench 8 wrench 11 ?0.5 1.5 9 ?0.1 ? 3 12 wrench spindle r: 1 to 3.5 spindle m: 1 to 2 spindle r: 2.5 to 5 spindle m: 2.5 to 3.5 shim washer depending on panel thickness a b c a c b tolerance unless otherwise speci ed ?0.5
www.vishay.com 87 P12 vishay sfernice document number: 51033 revision 19- j ul-02 for technical questions, contact sfer@vishay.com mechanical specifications mechanical travel 300 5 operating torque (max. ncm) 2 typical end stop torque (max. ncm) style h : 15 - t.q.: 35 tightening torque (max. ncm) 150 unit weight (max. g) 7.6 to 10 environmental specifications temperature range 55 c + 125 c climatic category 55/100/56 sealing fully sealed container ip67 ambient temperature in degrees celsius rated power in watt 1 0.5 0 0 20 40 60 70 80 100 125 140 lin. law a log. laws l & f fully sealed container cermet potentiometers military and professional grade resistive element cermet electrical travel 270 10 resistance range ... linear law 22 ? to 10m ? logarithmic laws 100 ? to 2.2m ? standard series e3 1 - 2.2 - 4.7 and on request 1 - 2 - 5 tolerance standard 20% on request 10% power rating linear 1 w at + 70 c logarithmic 0.5 w at + 70 c temperature coef cient see standard resistance element data limiting element voltage (linear law) 350v contact resistance variation 3% or 3 ? end resistance (typical) 1 ? dielectric strength (rms) 2000v insulation resistance (500 vdc) 10 6 m ? electrical specifications power rating chart resistance laws 0 20 40 60 80 100 % clockwise shaft rotation 100 0 20 40 60 80 % total resistance f a l
document number: 51033 revision 19- j ul-02 www.vishay.com 88 P12 vishay sfernice for technical questions, contact sfer@vishay.com special features shafts lengths are measured from the mounting surface to the free end of shaft. shaft slot is aligned with the wiper within 10 . special shafts are available, in accordance with drawings supplied by customers. we recommend custom- ers not to machine shafts, in order to avoid damage. bending or torsion of terminal should be avoided. shaft and panel sealing hardware the type P12t with r or m shaft can be provided with an optional de sealing hardware which ensures sealing of both the shaft and the mounting panel. de sealing hardware can be supplied either in a separate envelope. shaft locking the shaft locking bushing is available only with P12h potentiometers. torque applied to locking nuts should not exceed 15 ncm. fully sealed container cermet potentiometers military and professional grade tests load life climatic sequence long term damp heat rapid temperature change shock vibration rotational life 1000 hours at rated power 90'/30' - ambient temperature 70 c 56 days 5 cycles 55 c at + 125 c 50 g 11 ms 3 successive shocks in 3 directions 10 - 55 hz 0.75 mm or 10 g during 6 hours 25000 cycles phase a dry heat 125 c phase b damp heat phase c cold 55 c phase d damp heat 5 cycles 1% contact resistance variation : < 3% rn 0.5% 1% 0.1% 0.2% 0.5% 1% dielectric strength : 1000 v rms insulation resistance : > 10 4 m ? 3 % contact resistance variation : < 2% rn conditions typical values and drifts 0.5 % 0.1% ? v 1-2 0.2 % v 1-3 performance (%) ? rt ? r 1-2 rt r 1-2 (%) max. power at +70 c max. working voltage max. working voltage log laws ww v v ma ma 1 4.69 6.85 213.2 145.8 0.5 0.5 6 0.26 0.12 22.4 33.2 48.5 79.7 105 153 224 332 350 350 22.4 15.1 10.3 7.07 4.77 3.26 2.24 1.51 0.74 0.35 max. cur. through element max. cur. through element standard resis- tance values max. power at +70 c linear law 22 47 100 220 470 1k 2.2k 4.7k 10k 22k 47k 100k 220k 470k 1m 2.2m 4.7m 10m 1 0 0.56 0.26 0.12 0.05 0.02 0.01 10 14.8 21.6 31.6 46.9 63.5 100 148.3 216.7 316.2 350 350 350 350 350 350 100 67.4 46.1 31.6 21.3 14.5 10 6.7 4.6 3.16 1.59 0.75 0.35 0.16 0.07 0.01 0 + 200 100 ppm/ c t.c. 55 c + 125 c standard resistance element data ? marking printed : vishay trademark, series, ohmic value (in ? ), tolerance (in %), manufacturing date, marking of terminals 1, 2, 3 or a, b, c. series P12 or P12h t style shaft locking shaft m ohmic value 470 k ? tolerance 20% resistance law a pa n e l sealing device de ordering information packaging bo or
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