117S, 126S, 151S, 176S
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Revision: 03-Apr-17 1Document Number: 68016
For technical questions, contact: sfer@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Multi-Turn 3/8" (9.52 mm) Square 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.
ENVIRONMENTAL SPECIFICATIONS
Temperature limits: -65 °C to +150 °C
Sealing: fully sealed case (non-hermetic)
MECHANICAL SPECIFICATIONS
Operating torque: 5 oz.-inches maximum
Rotation: clutch stop, wiper idles
Weight: 0.935 g maximum
Resistive element: nickel chromium
Rotational life: 200 cycles minimum
Terminal strength: 2 lbs for 10 s
FEATURES
• Precious metal wiper
• 1.0 W to +85 °C
• TCR ± 50 ppm/°C
• Solderable leads
• Military quality at affordable prices
Note
(1) Other resistances available upon request
ELECTRICAL SPECIFICATIONS
Electrical travel 2 turns ± 4 turns
Resistance range 10 to 10 k (extended range
available in non MIL-SPEC product)
Resistance tolerance ± 5 % standard (closer tolerances
available)
Temperature coefficient
(-65 °C to +150 °C) ± 50 ppm/°C
Power rating
1.0 W at +85 °C derated to 0 W at
+150 °C, these specifications exceed
MIL-SPEC
End resistance 1 or 2 %, whichever is greater
Equivalent noise
resistance (ENR) 100 maximum
Dielectric (DWV)
1000 VAC at atmospheric pressure
These specifications exceed
MIL-SPEC
Insulation resistance > 100 000 M (500 VDC) these
specifications exceed MIL-SPEC
STANDARD RESISTANCE VALUES
RESISTANCE (1)
()
NOMINAL RESOLUTION
(%)
10 1.10
20 0.85
50 0.65
100 0.51
200 0.40
500 0.45
1K 0.34
2K 0.27
5K 0.20
10K 0.16
20K 0.13
CIRCUIT DIAGRAM
13
2
CW
GLOBAL PART NUMBER INFORMATION
New global part numbering: 117S500RB (preferred part number format)
GLOBAL MODEL TYPE RESISTANCE VALUE PACKAGING
117 = teflon leadwire
126 = PC mount
151 = top adjustment screw
176 = side adjustment screw
/ = continuous rotation
S = clutch stop
R = decimal
K = thousand
100R = 100
5K00 = 5 k
B = bulk
Historical part numbering: 117s501 (will continue to be accepted)
117 s 501
HISTORICAL MODEL TYPE RESISTANCE VALUE
7S50 RB011