Sharma Potentiometers

www.DataSheet4U.com Sharma Potentiometers WS Carbon Composition Potentiometer Features ■ Hot-Molded / Industrial / Sealed ■ Locking-Bushing / Standard-Bushing ■ Meet MIL-R-94 Electrical Characteristics Standard Resistance Range……….. A: 100 to 4M7 ohms …………… B/C: 1K to 1M ohms Resistance Tolerance………….……… ±5%,±10%,±20% Absolute Minimum Resistance…………………… 15 ohms (for total resistance values of 100 to 820 ohms inclusive) ………………………………………………………… 1% (for total resistance values of 1K to 4700K ohms inclusive) Contact Resistance Variation……….…………………… 5% Insulation Resistance (100 VDC)….1,000 M ohms minimum Power Rating: at 70℃ …………………………………… A: 0.5 watt ………………………………………. B/C: 0.25 watt at 125℃ …………………… 0 watt Environmental Characteristics Temperature Range……….…………………-55℃ to +125℃ Vibration………………………………………………….. 15G Shock……………………………………………………. 100G Load Life: 1,000 hours, 70℃ ………………………………A: 0.5 watt …………………………. B/C: 0.25 watt Total Resistance Shift……………………………. ±10% Rotational Life WS-1/1A (Standard-Bushing Type)……… 10,000 cycles Total Resistance Shift……………………… ±10% WS-2/2A(Locking-Bushing Type)……………… 500 cycles Total Resistance Shift…………………………… ±10% Mechanical Characteristics Total Mechanical Angle……………………… 270º minimum Torque Starting Torque……………………………… 0.8 to 5 N•cm Lock Torque(Locking-Bushing Type)…………… 8 N•cm Weight………………………………… Approximately 8 gram How To Order WS— 1 —0.5 —4K7— 16— 3 — A— M ① ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ② Model Bushing Style: 1-- Standard bushing; 2--Lock Bushing Power Rating 0.5W--linear taper; 0.25W--log taper & anti-log taper Standard Resistance: see standard resistance table Length of Operating shaft (from mounting surface) Shaft Style: 3--Slotted shaft; 5--Flatted shaft ③ ④ ⑤ ⑥ ⑦ ⑧ Standard Resistance Table (ohms) 100 120 150 180 220 270 330 390 470 560 680 820 1K 1K2 1K5 1K8 2K2 2K7 3K3 3K9 4K7 5K6 6K5 8K2 10K 12K 15K 18K 22K 27K 33K 39K 47K 56K 68K 82K 100K 120K 150K 180K 220K 270K 330K 390K 470K 560K 680K 820K 1M 1M2 1M5 1M8 2M2 2M7 3M3 3M9 4M7 Special resistance available. Taper: Blank--Linear; B—Log; C--Anti-Log Resistance Tolerance J = 5%, K = 10%, M = 20% Tel: (949)642-7324 SECI Engineers & Buyers' Guide Fax: (949)642-7327