Series 380, 53/AV4, 485 2 Watt, Conductive Plastic Potentiomeler Description The Series 380 Quiet One is a 2-watt conductive plastic potentiometer offering superior dynamic noise and a long rotational life. And its manufactured to MIL-R-94 specifications where applicable, Our 33/RV4 is a dual-marked potentiometer with all the fine features of the Series 380 in a more economical package. And it's built in strict accordance with MIL- R-94, Series 485 has all the exceptional features of the 380 with a bonus of ten times the rotational life, (Special order only.) Series 380 /% dynamic noise 100,000 cycle life Stainless-steel shaft e Series 53/RV4 Economical Wide range of values and tapers Shaft and mounting seals available Series 485 !% dynamic noise ! million cyele life Available on special order only Series 380, 53/AV4, 465, Electrical Specitications Resistance Range 50Q to 5 Megohms, linear. 2502 to 2.5 Megohms, tapered, 485 series only, 10002 to 2.5 Megohm, linear. Resistance Tolerance Linear, up to 1 Megohm +10%, above | Megohm +20%, Tapers, up to 500K +10; above S500KQ2 +20%. Power Rating (Watts) ? watts maximum continuous power rating for linear taper, but voltage not to exceed rating. Full rating @ 70C, derated linearly to zero watts at 120C. Derate all non-linear tapers by multiplying wattage rating by 0.5, See Chart A, page 44. Electrical Rotation 312 +3 without switch; 333 3 with switch. Effective Rotation 270, -0/ +10 Tapers Right or left-hand available. See Chart B, page 45. End Resistance Linear units: 442 maximum for total resistances up to 250K; 100 for resistances 250K and higher. Taper units: High end of element 1% of total resistance or 40 whichever is greater; low end same as for linear units, Dielectric Strength 1000 Vac for 60 seconds @ ATM pressure. 450 Vac for 60 seconds @ 3.4 in. Hg. Working Voltage 500 Vde across end terminals, but power not to exceed rating, Resistance Temperature Characteristics See Chart C, page 45. Dynamic Noise Linear single controls maximum initial noise level of 1% of total resistance. Measurement made using a constant current source and oscilloscope detection technique. Static noise See Chart D, page 45. Linearity +5% independent linear tapers only Voltage Coefficient .005%/Volt, maximum Switch Characteristics Rotary See Chari E, page 47. 43Series 380, 53/AV4, 485 Mechanical Specilications Mechanical Rotation 312 +3 without switch; 333 3 with switch Stop Torque Withstanding Strength 12 Ib. in. minimum, single shaft 8 Ib. in. minimum, concentric shaft Torque Range Single control | oz, in. to 4 oz. in., 2 oz. in. variation through mechanical rotation within a control. Single control with shaft seal | oz. in. to 6 oz. in, Single control with shaft locking feature and jam nut tightened to 10 Ib, in. Starting torque is 30 oz. in. Standard Bushing Lengths Plain, 1/4 in, (6.35mm), 3/8 in. (9.53mm), 1/2 in, (12.7mm) Panel Seal, 3/8 in. (9.53mm) Shaft Locking, 1/2 in. (12.7mm) Thread, 3/8 in. (9.53mm)-32 NEF-2.A Other bushings available on special order. Standard Shafts (Single Cantrol Only) Standard diameter 1/4 in. (6.35mm). Standard lengths every 1/8 in. (3.18mm) from 3/8 in, (9.53mm) minimum to 5 in. (127 mm) maximum. 380, stainless steel, 53/RV4 and 485 brass, nickel-plated. Available in round, slotted or flatted configurations. All shafts measured from mounting surface. Other shaft configurations available on special order. Weight Single .072 lbs. approximate Hardware Must be ordered separately, (a) Hex mounting nut, 3/8 in. (9.53mm) x 32 -NEF-24 thread, 1/2 in. (12.7mm) across flats, 3/32 in. (2.38mm) thick. (b) Internal tooth lockwasher, 11,16 in. (17.46mm)} outer diameter. x .022 in. (0.56 mm) thick, (cam hex nut, 1/2 in. (12.7mm) across flats, 7/32 in. (5.56mm) thick, supplied on locking-type bushing. Marking Will appear on rear surface without switch. On periphery when switch is used, Unless otherwise specified, marking will consist of: (a) Customer part number or Clarostat part number, (b) ELA source and date code. NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE. 44 Series 380, 53/RV4, 485, Operational Specitications Operating Temperature Range 55C to +120C Rotational Life (Standard) Series 380; Rotational life for linear control; 100,000 cycles for units up to and including 100,000Q, change not to exceed 5% R; above 100,000Q change not to exceed 10% R. Series 53/RV4; All resistance values: 25,000 cycles. Series 485; 10% maximum change in total resistance as a result of 1,500,000 shaft rotations life test under full load for resistance values 1K to 2.5 Megohms; 1,000,000 shaft rotations under full load for resistance values 1000) to IKQ Figure J Char Aee 1 % RESISTANCE a a Sa i I a Figure 3 Chart 0 x pave 4 STATIC NOISE CURVE SERIES 380 TAAL DATA, um me fe j += J P 1 ae +o ) 2 2 8 8 BH wm O \ % EFFECTIVE ROTATION iin x Curve Standard am \ The S" taper ts linear, the change in resistance value being directly proportional to the degree of rotation. It can be used either as right- hand or left-hand taper, = uo 8 -tt The "2" taper attains 10% resistance value at 50% of clockwise NOISE IN DB rotation (left-hand), The reverse "2" taper attains [6 resistance values at 50% of counter-clockwise rotation (right-hand). For conformity and special output curves, consult factory, Chart C Resistance Temperature Characteristics NOMINAL | MAXIMUM PERCENT TEMPORARY RESISTANCE FROM 25C RESISTANCE | -55C | 40C | OC | +25C | 485C | +105C | +120C O00HMS +450 +3.0 +1.5 0 +15 42.5 46:5) JOKOHMS 8 455 9 +4.0 42.0 0 +2.5 $3.0 | $4.0 1OOKOHMS 465 | +55 | 420 0 | 430 440 | 355 1MEGOHMS | 49.0 | +80 | +25 0 #35 155 | 47.0 45Figure 4 Series 380, 53/RV4 Dimensions + 1/32 [097mm] 9/16 [14.29mm] + 1/64 [0.016mm] 7/64 [278mm] 3/8-32 NEF-2A a (om = 250 DA[6.35mm] +.000 [+.000mm] rly = } - $ - 002 [-.051mm] | } | 3 a, " a + 1/32 [0.97mm] 1 3/32 [27.78mm] -t= MOUNTING SURFACE ONAL SPLIT BUSHING JAM NUT SUPPLIED 46Figure 5 Chart E Type Terminal Max. Operating No. Switch Variations Positions Torque-Oz. In. AE-10 S.P.8.T, LA, 250 V.; 3A, 125V (AC or DC) 1-2 12 AE-11 S.P.3.T. LA, 250V.; 3A, 125. with Bussing Terminal (AC or DC) 1-2-4 [2 AE-13 5.P.8.T, I5A, LOY, (DC Only) 1-4 16 *AE-20 D.P.S.T, LA, 250.; 3A, 125V. (AC or DC) 1-2-3-4 16 AE-21 D.P. 1 Pole on, | Pole off1A, 250V.; 3A, 125V. (Acor DC) 1-2-3-4 16 AE-23 D.P.S.T, 15A, 10V. (DC only) 1-2-3-4 16 *AE-24 D.P.S.T. 1A, 250.; 3A, 125'V. (AC or DC) Reverse Action 1-2-3-4 16 AE-25 D.P.S.T. 250MA. 24V.D.C. (Dry Circuit) [-2-3-4 12 AE-30 5.P.D.T. 1A, 250V.; 3A, 125. (AC or DC) 2-3-4 16 * May be employed as a single pole, single throw, two circuit switch. To Designate this application add an A to the end of switch type. Example: AE-20Adae tS ELUM a ee eve Ham es ekg Series 52 Standard Resistance Values Stock Values (Ohms) Series 38001 Series 53: Brass, nickel-plated shaft. Economical version of 380, 50 1000 10K 100K 1 meg 100 1500 315K 150K 1.5 meg* 150 2000 20K 200K 2 meg 250 2500 25K 250K 2,5 meg* 350* 3500" 35K 350K 3 meg* 500 5000 50K 500K 3.5 meg* 730* 7500" TSK" TS0K 4 meg 5 meg *Made-to-order; please consult Factory, Stock Values (Ohms) Series 380C2 50* 1000 10K 100K | meg 100 1500* 15K 150K 1.5 meg 150 2000 20K 200K* 2 meg* 250 2500 25K 250K 2.5 meg* 350 3500 35K* 350K 3 meg* S00 S000 50K 500K 3,4 meg 750* 7500" 75K* 750K* 4 meg* 5 meg *Made-to-order; please consult Factory. Stock Values (Ohms) Series 38003 50 1000 10K 100K | meg 100 1500) 15K 150K 1.5 meg 150* 2000 20K 200K 2 meg 250 2500 25K 250K 2.5 meg 350* 3500 35K* 350K* 3 meg 500 5000 SOK 500K 3.5 meg* 750* 7500* 75K 750K 4 meg 5 meg *Made-to-order; please consult Factory. Set ML RRO Ly Catalog Number Description 380C | 2" round shaft FMS, 3/8" long bushing with 3/8 x 32-NEF-2A thread. 380C2 5/8" screwdriver slotted shaft FMS, with a 1/2" split locking bushing. 38K 7/8" screwdriver slotted shaft FMS; 3/8" long Example: 380-01-10K-5 bushing with 3/8 x 32-NEF-24 thread. ee yf Series Shaft Bushing Resistance Value Taper See Catalog Number (Ohne) See Chart B and Description (Figure 2, page 451 48 Series 53 Stock Values (Ohms) S53Cf, 5302, 53C3 Linear 50 1500 20K 250K 3 Meg 100 2000 25K 350K 3.5 Meg 150 2500 35K 500K 4 Meg 250) 350) 50K 750K 5 Meg 350 S000 73K | Meg 7.5 Meg 500 7500 LOOK 1.5 Meg 10 Meg 750 LOK ISOK =.2.5 Meg 1000 15K 200K Dual Taper 2Z-Taper Reversed 2-Taper DS3CI 53CI-Z 53C1-RZ LOK 500 150K 10K 25K IK 200K 25K SOK 2.9K 250K 50K 100K 5K 500K 100K 250K 10K 750K 250K 500K 15K | Meg 500K | Meg 20K 2 Meg 25K 2.5 Meg 50K 5 Meg LOOK Cah my Catalog Number Description 53C1 2 in. (.50.5mm) round shaft FMS; 3/8 in. (9.52mm) long bushing with 3/8 in, (952mm) x 32-NEF-24 thread. 3C2 5/8" screwdriver slotted shaft FMS; with a 1/2 in. (.50.4mm) split locking bushing. 3C3 7/8 in (22.22mm) screwdriver slotted shaft FMS; 3/8 in. (9.52mm) long bushing with 38 in. (203.2mm) x 32-NEF 2A thread. 53C15W Unsealed version of 53C1 available for use with field assembled switches. Order as 53C1 SW see table | for switch ordering. S3C 1-2 Same as 53C1 but with 2 taper (see chart B, page 45). S3C1-RZ Same as 53C1 but with Reversed Z taper (see chart B, page 45), DS3C1 Dual ganged. Bushing and shaft same as S3C1. Table | Switches for 53C1 SW only. Must be ordered separately on a made-to-order basis. 53-10 SPST-3A-125 Vac 33-20 DPST-34-125 Vac 33-21 (Mod,} DPST-3A-125 Vae/de Series 53 How to Order, continued next pageSere re nee ee series RV4 How To Order Example: 59-C1-SW-1Meg-S Example: RV4-N-A-Y-$-D- oy le desis ste Pee EE TRY Serles Shaft & Bushing Seuitch* Taper Sertad 5 | existance See Catalog Number See Tuble 1, See Chart B De eka and Description Page 48 (Figure 2, Page 45) B= Rotary Drigits mad , : (Ghms} fh = Standard, | See table below *Leave blank if switch is not required, 28 in. (452mm) Tae pets Shui Style BTR eR EE Cee em leh 32-NEF-2A m Slotted Number of L. = Locking, Fo Flated Zeros That . . . , 12 in, (12.7 mm Follow Series RV4: Military version of Series 53 long x 3/8 42-NEF-24 Sandard Temperature 5 = Shaft & | seal, Charicteristic 5 AVA Stock Values (Ohms, Tolerance and Tapers) vsindatd haskine ce Sea =e T= Shaft & panel seal, B= +20% Linear RVANAYSD RVANAYSK locking bushing *C = Log CW 10% D = Log CW 20 "B= Log COW + 10% 500A 252A 753A 205B 1O1A* 503A +F = Log CCW 420% IOLA 3524 1044 355B 251A* 104A* wapaciads SIA 502A 154A 355B 501A* 2544 aie metaleal 251A 7524 2044 505B O24 S044 rotation, 351A W3A 254A 252A* 105A* SOIA 153A 354A 502A -255B Shaft Length from Mounting Surface Table T1A 2034 504A 1034 505B 2 a a 1024 2534 754A 2534 Shaft With 3/8 tn, (952mm) Le With 12 in. (12.7mm) Le 1524 353A 105A Length Code = Sushings W & 8 Bushings L&T 2024 5034 155B = a eit = A N/A 5/8 in. (15.88 mm) *Made-to-order; please consult Factory. B 1/2? in. (12.7 mm) NiA Db 7/8 in, (22.23 mm) 7/8 in, (22.23 mm) RV4LAYSA RV4NAYSB G 11/4 in, (31.75 mm) N/A = J 2 in, (50.8 mm) N/A 500A 252A 753A 205B 1O1A* = S03 K 2: 1/2 in. (63,5 mm) N/A 101A 352A 104A 255B 251A 104.4 151A 502A 154A 355B 501A 254A N/A = Not available 251A 752A 204A 505B 102A 504A 351A 103A 2544 252A* LOS. SUEea bm mma SOLA 153A 354A S024 255B Ea ae ae te, S05B* Series 485 available on a made-to-order basis only. 152A 353A 105A Please consult Factory for pricing, delivery, and 2024 503A 155B* munis: *Made-to-order; please consult Factory, RV4LAYSD IOLA = 503A 251A 104A SOLA 254A 1024 S044 252A 105A 502A 255B* 1034 505B 253A *Made-to-order; please consult Factory, 49