117S Datasheet, PDF (1/2 Pages) Vishay Siliconix – 3/8 (9.52mm) Sq. Wirewound Trimmers

Models 117^S, 126^S, 151^S and 176^S
Vishay Techno
3/8" [9.52mm] Sq. Wirewound Trimmers
APPLICATIONS
Wirewound trimmers are particularly useful in those
applications where any combination of high power, low
temperature coefficient of resistance and/or excellent long
term life stability are important design considerations.
ELECTRICAL SPECIFICATIONS
Electrical Travel: 22 ± 4 turns.
Resistance Range: 10 ohms to 10 kilohms. Extended
range available in non MIL-Spec product.
Resistance Tolerance: ± 5% standard. Closer tolerances
available.
Temperature Coefficient: (- 65°C to + 150°C) ± 50PPM/°C.
Power Rating: 1.0 watt at + 85°C derated to 0 watt at
+ 150°C. These specifications exceed MIL-Spec.
End Resistance: 1 ohm or 2%, whichever is greater.
Equivalent Noise Resistance (ENR): 100 ohms maximum.
Dielectric (DWV): 1000 VAC at atmospheric pressure.
These specifications exceed MIL-Spec.
Insulation Resistance: >100,000 Megohms (500 VDC).
These specifications exceed MIL-Spec.
MECHANICAL SPECIFICATIONS
Operating Torque: 5 ounce inch maximum.
Rotation: Clutch stop, wiper idles.
Weight: 0.935 grams maximum.
Resistive Element: Nickel chromium.
Rotational Life: 200 cycles minimum.
Terminal Strength: 2 pounds for 10 seconds.
ENVIRONMENTAL SPECIFICATIONS
Temperature Limits: - 65°C to + 150°C.
Sealing: Fully sealed case (non-hermetic).
FEATURES
• Precious metal wiper.
• 1.0 watt to + 85°C.
• TCR ± 50PPM/°C.
• Solderable leads.
• Military quality at affordable prices.
STANDARD RESISTANCE VALUES
RESISTANCE*
(Ohms)
NOMINAL RESOLUTION
(%)
10
1.10
20
.85
50
.65
100
.51
200
.40
500
.45
1k
.34
2k
.27
5k
.20
10k
.16
20k
.13
25k
.12
35k
.11
50k
.10
*Other resistances available upon request.
CIRCUIT DIAGRAM
1
3
CW
2
DIMENSIONAL CONFIGURATIONS 3/8" [9.52mm] Square [Numbers in brackets indicate millimeters]
L Lead Style - 117^S
0.075 ± 0.010
[1.90 ± 0.254]
Radius
X
0.380 ± 0.005
[9.65 ± 0.127]
G
•
CW
Y
•
•_R
X
0.419 ± 0.010
[10.64 ± 0.254]
0.055 ± 0.005
[1.40 ± 0.127]
0.023 ± 0.003
[.584 ± 0.076]
0.117 ± 0.005
[2.97 ± 0.127]
0.023 ± 0.003
[.584 ± 0.076]
0.060 ± 0.005
[1.52 ± 0.127]
Dia.
0.314 ± 0.005
[7.98 ± 0.127]
#30 AWG leads, color coded
Teflon insulated
6" [152.40mm] minimum length
0.150 ± 0.010
[3.81 ± 0.254]
P Lead Style - 126^S
0.040 ± 0.010
[1.02 ± 0.254]
0.375 ± 0.005
[9.52 ± 0.127]
0.023 ± 0.003
[.584 ± 0.076]
2
0.313 ± 0.005
[7.95 ± 0.127]
0.025 ± 0.003
[0.635 ± 0.076]
0.375 ± 0.005
[9.52 ± 0.127]
13
0.100 ± 0.005
[2.54 ± 0.127]
0.100 ± 0.005
[2.54 ± 0.127]
0.167 ± 0.005
[4.24 ± 0.127]
0.217 ± 0.005
[5.51 ± 0.127]
0.093 ± 0.005
[2.36 ± 0.127]
Dia.
0.300 [7.62]
Min.
0.027 ± 0.002
[.686 ± 0.051]
Dia.
www.vishay.com
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Document Number 68016
Revision 23-Sep-99