Precision Wirewound Potentiometer - 1.5 Watt, 7/8" round case, 1/4" dia. shaft, 3 turn

Features Permanickel contact Stainless steel 1/4" diameter shaft Gold plated terminals Internal tracking surfaces gold plated Precision winding with excellent linearity Specifications Electrical Resistance Range: 50 Ohms to 20K Ohms Resistance Tolerance: ±5% Linearity Tolerance: ±0.25% independent Noise: 100 Ohms ENR Rotation: 1080°, +10°, -0° Power Rating: 1W @ +70°C derated to 0W @ +125°C Insulation Resistance: 1000 Meg Ohm min, 500VDC Dielectric Strength: 1000V RMS min 50Hz Absolute Minimum Resistance: Not to exceed linearity x total resistance or 1 Ohm, whichever is greater Temperature Coefficient of Resistance: 20ppm/°C (wire only) End Voltage: 0.25% of total applied voltage, max Mechanical Bearing Type Bushing: Sleeve bearing Resistance Element: See Table Rotation: 1080°, +10°, -0° Starting Torque (maximum): 50 gm-cms (0.7 oz in) Stop Strength (static): 5.4 Kgm-cm (75 oz in) Rotation Life: 300,000 shaft revolutions Environmental Operating Temperature: -55° to +125°C Load Life: 900 hr.

Precision Wirewound Potentiometer - 1.5 Watt Part Numbers

NTE Part No.	Value Ohms	Shaft Length	Diag. No.
502-0130	100	7/8"	P12
502-0131	200	7/8"	P12
502-0132	500	7/8"	P12
502-0133	1K	7/8"	P12
502-0134	2K	7/8"	P12
502-0135	5K	7/8"	P12
502-0136	10K	7/8"	P12
502-0137	20K	7/8"	P12

Resistance Element Data
Resistance Value (Ohms)	Resolution (%)	Ohms per Turn	Max Current @ 70°C Ambient (mA)	Max Voltage Across Coil (Volts)
100	.111	.1114	100.00	10.0
200	.097	.1954	70.70	14.1
500	.069	.3424	44.70	22.4
1K	.063	.6331	31.60	31.6
2K	.041	.8206	22.40	44.7
5K	.044	2.2330	14.10	70.7
10K	.034	3.4510	10.00	100.0
20K	.031	6.1790	7.07	200.0

Precision Wirewound Potentiometer - 1.5 Watt - Dimensional Drawing

P12

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