Model 402

Vishay Spectrol

3" (76.2 mm) Single Turn Wirewound

Precision Potentiometer

www.vishay.com

For technical questions, contact: sfer@vishay.com

Document Number: 57061

108

Revision: 15-Jun-07

Not for New Design

MATERIAL SPECIFICATIONS

Housing and Lids

Aluminum, anodized

Shaft and Clamp Rings

Stainless steel, non-magnetic

non-passivated

Terminals

Brass, plated for solderability

Bushing Mount Hardware

Lockwasher Internal Tooth:

Panel Nut:

Steel, nickel plated

Brass, nickel plated

ENVIRONMENTAL SPECIFICATIONS

Vibration

15 g thru 2000 CPS

Shock

50 g

Salt Spray

96 h

Rotational Life

1 million shaft revolutions

Load Life

900 h

Temperature Range

- 55 °C + 125 °C

MARKING

Unit

Identification

Units shall be marked with Vishay Spectrol name, model no, data code and on each section, resistance, resistance

tolerance, linearity and terminal identification

POWER RATING CHART

(Ratings for cup No. 1.

Additional cups 75 % of values shown)

20

40

60

80

100

120

140

160

STANDARD 125 °C

SPECIAL 150 °C

0

2

4

6

8

10

AMBIENT TEMPERATURE IN °C

RESISTANCE ELEMENT DATA

RESISTANCE

VALUES

(

Ω)

RESO-

LUTION

(%)

OHMS

PER

TURN

MAXIMUM

CURRENT

AT 70 °C

AMBIENT

(mA)

MAXIMUM

VOLTAGE

ACROSS

COIL

(V)

WIRE

TEMP.

COEF.

(ppm/°C)

10

0.160

0.016

775

7.74

800

20

0.120

0.024

548

10.9

800

50

0.094

0.047

347

17.3

800

100

0.106

0.106

245

24.5

20

200

0.091

0.181

173

34.7

20

500

0.072

0.361

110

54.5

20

1K

0.057

0.575

77.5

77.4

20

2K

0.056

1.12

54.8

109

20

5K

0.042

2.09

34.6

173

20

10K

0.034

3.42

24.5

245

20

20K

0.025

5.07

17.3

347

20

50K

0.019

9.41

11.0

545

20

100K

0.018

18.0

7.74

775

20

150K

0.023

34.4

6.32

949

20