Potentiometer - 2.3 Watt, 7/8" round case, 1/4" dia. shaft, 5 turn, precision wirewound

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 50K Ohms Resistance Tolerance: ±5% Linearity Tolerance: ±0.25% independent Noise: 100 Ohms ENR Rotation: 1800°, +10°, -0° Power Rating: 1.5W @ +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: 1800°, +10°, -0° Starting Torque (maximum): 50 gm-cms (0.7 oz in) Stop Strength (static): 5.4 Kgm-cm (75 oz in) Rotation Life: 500,000 shaft revolutions Environmental Operating Temperature: -55° to +125°C Load Life: 900 hr.

Potentiometer - 2.3 Watt, 7/8" round case, 1/4" dia. shaft, 5 turn, precision wirewound Part List

NTE Part No.	Value Ohms	Shaft Length	Diag. No.
502-0145	100	7/8"	P12
502-0146	200	7/8"	P12
502-0147	500	7/8"	P12
502-0148	1K	7/8"	P12
502-0149	2K	7/8"	P12
502-0150	5K	7/8"	P12
502-0151	10K	7/8"	P12
502-0152	20K	7/8"	P12
502-0153	50K	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	.075	.0746	122.00	12.2
200	.061	.1220	86.60	17.3
500	.049	.2549	54.70	27.4
1K	.041	.4113	38.70	38.7
2K	.031	.6331	27.40	54.8
5K	.034	1.7230	17.30	86.6
10K	.030	3.0160	12.20	122.0
20K	.020	3.9910	8.66	173.0
50K	.015	7.4560	5.47	274.0

Potentiometer - 2.3 Watt, 7/8" round case, 1/4" dia. shaft, 5 turn, precision wirewound Dimensional Drawings

P12

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