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T18 Datasheet(PDF) 2 Page - Vishay Siliconix

Part # T18
Description  3/4" Rectangular Multi-Turn Cermet Trimmer
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Manufacturer  VISHAY [Vishay Siliconix]
Direct Link  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

T18 Datasheet(HTML) 2 Page - Vishay Siliconix

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www.vishay.com
For technical questions, contact: sfer@vishay.com
Document Number: 51027
80
Revision: 26-Jun-07
T18
Vishay Sfernice
3/4" Rectangular Multi-Turn Cermet Trimmer
MECHANICAL SPECIFICATIONS
Mechanical Travel
18 turns ± 5
Operating Torque (max. Ncm)
2
End Stop Torque
clutch action
Unit Weight (max. g)
1
Wiper (actual travel)
positioned at approx. 50 %
ENVIRONMENTAL SPECIFICATIONS
Temperature Range
- 55 °C to + 125 °C
Climatic Category
55/125/56
Sealing
fully sealed
container IP67
POWER RATING CHART
ELECTRICAL SPECIFICATIONS
Resistive Element
cermet
Electrical Travel
15 turns ± 1
Resistance Range
10
Ω to 2.2 MΩ
Standard series E3
1 - 2.2 - 4.7 and 1 - 2 - 5
Tolerance
Standard
± 10 %
On Request
± 5 %
Power Rating
Linear
0.50 W at + 70 °C
Logarithmic
not applicable
Temperature Coefficient
See Standard Resistance Element Table
Limiting Element Voltage (Linear Law)
250 V
Contact Resistance Variation
2 % Rn or 1
Ω
End Resistance (Typical)
1
Ω
Dielectric Strength (RMS)
1000 V
Insulation Resistance (500VDC)
106 M
Ω
0
20
40
100
125
140
70
60
0.50
0
AMBIENT TEMPERATURE IN °C
80
0.25
0.75
PERFORMANCE
TESTS
CONDITIONS
TYPICAL VALUES AND DRIFTS
ΔRT
RT
(%)
ΔR1-2
R1-2
(%)
Load Life
1000 hours at rated power
90'/30' - ambient temp. 70 °C
± 1 %
± (3 % + 5
Ω)
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
± 0.5 %
± 1 %
Dielectric strength: 1000 V RMS
Insulation resistance: > 104 M
Ω
Rapid Temperature Change
5 cycles
- 55 °C at + 125 °C
± 0.5 %
ΔV1-2
V1-3
≤ ± 1 %
Shock
50 g at 11m secs
3 successive shocks
in 3 directions
± (0.2 % + 3
Ω)
± 0.3 %
Vibration
10 - 55 Hz
0.75 mm or 10 g
during 6 hours
± 0.2 %
ΔV1-2
V1-3
≤ ± 0.3 %
Rotational Life
200 cycles
± (2 % + 3
Ω)
Contact res. variation: < 2 % Rn


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