PRV4

Vishay Sfernice

Industrial Potentiometer

www.vishay.com

For technical questions, contact: sfer@vishay.com

Document Number: 50004

122

See also: Application notes

Revision: 21-Sep-06

SPECIAL FEATURES

COMMAND SHAFT

Length is measured from the mounting surface to the free

end of the shaft. The screwdriver slot is aligned with the

wiper within ± 10°. Special shafts are available, in

accordance to drawings supplied by customers. We

recommend that customers should not machine shafts, in

order to avoid damage. Bending or torsion of terminals

should also be avoided.

LINEARITY

The typical linearity of linear variation law potentiometers is

± 5 %. Guaranteed linearity on request. Consult VISHAY.

MECHANICAL SPECIFICATIONS

Mechanical Travel

300° ± 5°

Operating Torque (max. Ncm)

3 typical [4.3 oz. inch]

End Stop Torque (max. Ncm)

70 [6 lb. inch]

Max Tightening Torque

of Mounting Nut (Ncm)

200 [17.3 lb. inch]

Unit Weight (max. g)

23 to 32 [0.82 oz to 1.14 oz]

ENVIRONMENTAL SPECIFICATIONS

Temperature Range

- 55 °C to + 125 °C

Climatic Category

55/125/10

Sealing

fully sealed

container IP67

POWER RATING CHART

RESISTANCE LAWS

ELECTRICAL SPECIFICATIONS

Resistive Element

cermet

Electrical Travel

270° ± 10°

Resistance Range

Linear Law

20

Ω to 10 MΩ

Logarithmic Laws

100

Ω to 2.5 MΩ

Standard series

1 - 2 - 2.5 - 5

Tolerance

Standard

± 20 %

On Request

± 10 %

Power Rating

Linear

2 W at + 70 °C

Logarithmic

1 W at + 70 °C

Temperature Coefficient

See Standard Resistance Element Data

Limiting Element Voltage (Linear Law)

500 V

Contact Resistance Variation (Typical)

1 % Rn or 3

Ω

End Resistance

4

Ω

Dielectric Strength (RMS)

1500 V

Insulation Resistance (500 VDC)

Ω

0

40

140

125

1

0

AMBIENT TEMPERATURE IN DEGREES CELSIUS

70

60

20

100

80

LIN. LAW “A”

LOG. LAWS “L & F”

2

100

80

60

40

20

0

0

100

80

60

40

20

% CLOCKWISE SHAFT ROTATION

F

L

A