Model 702

www.vishay.com

Vishay Spectrol

Revision: 29-Nov-17

3

Document Number: 57069

For technical questions, contact: sferprecisionpot@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

Note

• Nothing stated herein shall be construed as a guarantee of

quality or durability

POWER RATING CHART

(Ratings for cup No. 1. Additional cups 75 % of values shown)

MATERIAL SPECIFICATIONS

Housing and lids

Aluminum, anodized

Shaft

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

MARKING

Unit



identification

Units shall be marked with Vishay Spectrol

name, model no and date code, and on each

section: resistance, resistance tolerance,

linearity and terminal identification.



Example of a marking for a standard part:

702-11502

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

Operating temperature

range:

-55 °C +125 °C

20

40

60

80

100

120

140

160

AMBIENT TEMPERATURE IN °C

0

1

1.5

3

2

STANDARD (125 °C)

SPECIAL (150 °C)

RESISTANCE ELEMENT DATA

STANDARD

RESISTANCE

VALUES

(

)

RESO-

LUTION

(%)

OHMS

PER

TURN

MAXIMUM

CURRENT

AT 70 °C

AMBIENT

(mA)

MAXIMUM

VOLTAGE

ACROSS

COIL

(V)

WIRE

TEMP.

COEF.

(ppm/°C)

5

0.460

0.023

500

2.50

800

10

0.378

0.038

354

3.54

800

20

0.374

0.075

250

5.00

180

50

0.300

0.150

158

7.90

180

100

0.271

0.271

112

11.2

20

200

0.235

0.478

79.1

15.8

20

500

0.206

1.03

50.0

25.0

20

1K

0.156

1.56

35.4

35.4

20

2K

0.127

2.55

25.0

50.0

20

5K

0.101

5.07

15.8

79.0

20

10K

0.095

8.50

11.2

112.0

20

20K

0.090

17.9

7.90

158.0

20

50K

0.075

37.9

5.00

250.0

20

100K

0.065

64.5

3.54

354.0

20