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Document Number: 51009

22

Revision: 20-Oct-04

TSM4

Vishay Sfernice

Surface Mount Miniature Trimmers

Multi-Turn Cermet Sealed

ELECTRICAL SPECIFICATIONS

Resistive Element

Cermet

Electrical Travel

11 turns ± 2

Resistance Range

10

W to 1MW

Standard Series

1 - 2 - 5

Tolerance Standard

±10%

Power Rating

Linear

0.25W at + 85°C

Logarithmic

not applicable

Temperature Coefficient

See Standard Resistance Element Table

Limiting Element Voltage (Linear Law)

200V

Contact Resistance Variation

1% or 3

W

End Resistance (Typical)

1

W

Dielectric Strength (RMS)

600V

Insulation Resistance

W

MECHANICAL SPECIFICATIONS

Mechanical Travel

13 turns ± 2

Operating Torque (max. Ncm)

1

End Stop Torque (Ncm)

clutch action

Unit Weight (max. g)

0.15

ENVIRONMENTAL SPECIFICATIONS

Temperature Range

– 55°C to + 125°C

Climatic Category

55 / 125 / 56

Sealing

sealed container

solder immersion IP67

POWER RATING CHART

0

20

40

60

85

100

120

140

155

0

0.125

0.25

AMBIENT TEMPERATURE IN DEGREES CELSIUS

PERFORMANCE

TESTS

CONDITIONS

TYPICAL VALUES AND DRIFTS

D

D

D

DRT

RT

(%)

D

D

D

(%)

Load Life

1000 hours at rated power

90'/30' - ambient temperature + 85°C

± 2%

± 3 %

Contact resistance variation:

D > 1% Rn

Moisture Resistance

MIL STD 202 Method 106

10 cycles of 24 hours constituted

with damp heat - cold - vibrations

± 2 %

± 3 %

Dielectric strength: 1000 V RMS

W

Long Term Damp Heat

Temperature 40°C - RH 93 %

56 days

± 2 %

± 3 %

Dielectric strength: 1000 V RMS

W

Thermal Shock

- 55°C to + 125°C - 5 cycles

± 1 %

£ ± 2%

Rotational Life (Electrical and Mechanical)

100 cycles - rated power

± 3 %

Shock

MIL STD 202 Method 213/1

100 g - 6 ms

3 successive shocks in 3 directions

± 1 %

£ ± 1%

Vibration

MIL STD 202 Method 204/D

20 g - 12 hours

± 1 %

£ ± 1%