NTE Electronics 535 Series Catalog Page

Features

• Permanickel contact

• Stainless steel 1/4” diameter shaft

• Gold plated terminals

• Internal tracking surfaces gold plated

• Precision winding with excellent linearity

Spectrol 535 Series

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

Spectrol No. NTE Part No.

535−1−1−101 502−0145 100 7/8” P12

535−1−1−201 502−0146 200 7/8” P12

535−1−1−501 502−0147 500 7/8” P12

535−1−1−102 502−0148 1K 7/8” P12

535−1−1−202 502−0149 2K 7/8” P12

535−1−1−502 502−0150 5K 7/8” P12

535−1−1−103 502−0151 10K 7/8” P12

535−1−1−203 502−0152 20K 7/8” P12

535−1−1−503 502−0153 50K 7/8” P12

Value

(Ohms)

Shaft

Length

Resistance Element Data

Resistance

Value

(Ohms)

100 .075 .0746 122.00 12.2

200 .061 .1220 86.60 17.3

500 .049 .2459 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

Resolution

(%)

Ohms

per Turn

Max Current

@ 70°C
Ambient

(mA)

Across Coil

Diag

No.

Max

Voltage

(Volts)

P12

(19.05)

.200 (5.08)

Min

123

1

.312 (7.92)

2

Clockwise

.062

(1.57)

Wiper

3

L.750

3/8−32 UNEF−2A

.625 (15.88) R Max

30°

.2497
(6.34)

.875 (22.22)

Dia

L = Shaft Length (See Table)

Specifications

Electrical

Resistance Range: 50 Ω to 50K Ω
Resistance Tolerance: ±5%
Linearity (independent): ±0.25%
Noise: 100 Ω ENR
Rotation: 1800° +10°, −0°
Power Rating: 1.5 Watt @ 70°C derated to 0 Watts @ 125°C
Insulation Resistance: 1000 Meg Ω min, 500VDC
Dielectric Strength: 1000V RMS min 50Hz
Absolute Minimum Resistance: Not to exceed linearity x total

resistance or 1Ω, 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°C to +125°C
Load Life: 900 hr.

NTE Electronics, Inc. D Voice (973) 748−5089 D FAX (973) 748−6224 D http://www.nteinc.com

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