Document Number: 51033

For technical questions, contact: sfer@vishay.com

www.vishay.com

Revision: 06-Jul-06

See also: Application notes

115

P12

Fully Sealed Container Cermet Potentiometers

Military and Professional Grade

Vishay Sfernice

PERFORMANCE

TESTS

CONDITIONS

TYPICAL VALUES AND DRIFTS

ΔRT

RT

(%)

(%)

Load Life

1000 hours at rated power

90’/30’ - ambient temp. 70 °C

± 1 %

Contact res. variation: < 3 % Rn

Climatic Sequence

Phase A dry heat 125 °C

Phase B damp heat

Phase C cold - 55 °C

Phase D damp heat 5 cycles

± 0.5 %

± 1 %

Long Term Damp Heat

56 days

40 °C

93 % RH

± 0.5 %

± 1 %

Dielectric strength: 1000 V RMS

Ω

Rapid Temperature Change

5 cycles

- 55 °C at + 125 °C

± 0.5 %

Shock

50 g at 11 ms

3 successive shocks

in 3 directions

± 0.1 %

± 0.2 %

Vibration

10 - 55 Hz

0.75 mm or 10 g

during 6 hours

± 0.1 %

≤ ± 0.2 %

Rotational Life

25 000 cycles

± 3 %

Contact res. variation: < 2 % Rn

STANDARD RESISTANCE ELEMENT DATA

STAN-

DARD

RESIS-

TANCE

VALUES

LINEAR LAW

LOGS LAW

TCR

- 55 °C

+ 125 °C

MAX.

POWER

AT 70 °C

MAX.

WORKING

VOLTAGE

MAX.

WIPER

CUR.

MAX.

POWER

AT 70 °C

MAX.

WORKING

VOLTAGE

MAX.

WIPER

CUR.

Ω

W

V

mA

W

V

mA

ppm/°C

22

47

14.69

6.85

213.2

145.8

0

+ 200

100

220

470

1K

2.2K

4.7K

10K

22K

47K

100K

220K

470K

1M

2.2M

4.7M

10M

1

0.56

0.26

0.12

0.05

0.02

0.01

10

14.8

21.6

31.6

46.9

63.5

100

148.3

216.7

316.2

350

350

350

350

350

350

100

67.4

46.1

31.6

21.3

14.5

10

6.7

4.6

3.16

1.59

0.75

0.35

0.16

0.07

0.01

0.5

0.5

0.26

0.12

0.05

22.4

33.2

48.5

79.7

105

153

224

332

350

350

350

22.4

15.1

10.3

7.07

4.77

3.26

2.24

1.51

0.74

0.35

0.16

± 100

MARKING

Printed:

- VISHAY trademark

- series

- ohmic value (in

Ω )

- tolerance (in %)

- manufacturing date

- marking of terminals 1 or a

SPECIAL FEATURES

SHAFTS

Lengths are measured from the mounting surface to the free

end of shaft. Shaft slot is aligned with the wiper within ± 10°.

Special shafts are available, in accordance with drawings

supplied by customers. We recommend customers not to

machine shafts, in order to avoid damage. Bending or torsion

of terminal should be avoided.

SHAFT AND PANEL SEALING HARDWARE

The type P12T with R or M shaft can be provided with an

optional “DE” sealing hardware which ensures sealing of

both the shaft and the mounting panel. “DE” sealing

hardware can be supplied in a separate envelope.

SHAFT LOCKING

- The

shaft locking bushing is available only with P12H

potentiometers. Torque applied to locking nuts should not

exceed 15 Ncm.