117S, 126S, 151S, 176S Datasheet

117S, 126S, 151S, 176S
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Vishay Techno
3/8" (9.52 mm) Square Wirewound Trimmers
FEATURES
• Precious metal wiper
• 1.0 W to + 85 °C
• TCR ± 50 ppm/°C
• Solderable leads
• Military quality at affordable prices
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.
STANDARD RESISTANCE VALUES
RESISTANCE (1)
()
NOMINAL RESOLUTION
(%)
ELECTRICAL SPECIFICATIONS
10
1.10
Electrical travel: 22 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
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
Note
(1) Other resistances available upon request
ENVIRONMENTAL SPECIFICATIONS
CIRCUIT DIAGRAM
Temperature limits: - 65 °C to + 150 °C
Sealing: Fully sealed case (non-hermetic)
MECHANICAL SPECIFICATIONS
1
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
CW
3
2
GLOBAL PART NUMBER INFORMATION
New global part numbering: 117S500RB (preferred part number format)
1
1
7
S
5
0
0
R
B
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
Revision: 07-Feb-12
Document Number: 68016
1
For technical questions, contact: [email protected]
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
117S, 126S, 151S, 176S
www.vishay.com
Vishay Techno
DIMENSIONS 3/8" (9.52 mm) Square in inches (millimeters)
P Lead Style - 126S
L Lead Style - 117S
0.375 ± 0.005
(9.52 ± 0.127)
0.040 ± 0.010
(1.02 ± 0.254)
0.419 ± 0.010
(10.64 ± 0.254)
0.075 ± 0.010
(1.90 ± 0.254)
Radius
2
0.055 ± 0.005
(1.40 ± 0.127)
X
0.380 ± 0.005 G
(9.65 ± 0.127) CW
Y
0.313 ± 0.005
(7.95 ± 0.127)
0.117 ± 0.005
(2.97 ± 0.127)
0.023 ± 0.003
(0.584 ± 0.076)
R
0.023 ± 0.003
(0.584 ± 0.076)
0.100 ± 0.005
(2.54 ± 0.127)
#30 AWG leads, color coded
Teflon insulated
6" (152.40 mm) minimum length
0.217 ± 0.005
(5.51 ± 0.127)
0.167 ± 0.005
(4.24 ± 0.127)
0.093 ± 0.005
(2.36 ± 0.127)
Dia.
0.150 ± 0.010
(3.81 ± 0.254)
W Lead Style - 151S
3
0.100 ± 0.005
(2.54 ± 0.127)
0.025 ± 0.003
(0.635 ± 0.076)
0.314 ± 0.005
(7.98 ± 0.127)
0.060 ± 0.005
(1.52 ± 0.127)
Dia.
1
0.375 ± 0.005
(9.52 ± 0.127)
X
0.300 (7.62)
Min.
0.027 ± 0.002
(0.686 ± 0.051)
Dia.
X Lead Style - 176S
0.314 ± 0.005
(7.98 ± 0.127)
0.190 ± 0.005
(4.83 ± 0.127)
0.025 ± 0.003
(0.635 ±0.076)
0.346 ± 0.005
(8.79 ± 0.127)
0.023 ± 0.003
(0.584 ±0.076)
0.093 ± 0.005
(2.36 ± 0.127)
Dia.
0.375 0.005
(9.52 0.127)
3 2 1
0.410 ± 0.005
(10.41 ± 0.127)
3 2 1
0.300 (7.62)
Min.
0.023 ± 0.003
(0.584 ± 0.076)
0.027 ± 0.002
(0.686 ± 0.051)
Dia.
0.300 (7.62)
Min.
0.100 ± 0.005
(2.54 ± 0.127)
0.100 ± 0.005
(2.54 ± 0.127)
0.027 ± 0.002
(0.686 ± 0.051)
Dia.
0.375 ± 0.005
(9.52 ± 0.127)
0.025 ± 0.003
(0.635 ± 0.076)
0.093 ± 0.005
(2.36 ± 0.127)
Dia.
0.410 ± 0.010
(10.41 ± 0.254)
0.040 ± 0.005
(1.02 ± 0.127)
0.190 ± 0.005
(4.83 ± 0.127)
0.139 ± 0.005
(3.53 ± 0.127)
0.040 ± 0.005
(1.02 ± 0.127)
0.023 ± 0.003
(0.584 ± 0.076)
0.100 ± 0.005
(2.54 ± 0.127)
0.139 ± 0.005
(3.53 ± 0.127)
0.100 ± 0.005
(2.54 ± 0.127)
ENVIRONMENTAL PERFORMANCE
CONDITIONS
MIL-PRF-39015
REQUIREMENT
TYPICAL
CHANGE
50 h at 1 W at + 25 °C
R  0.5 % (2)
R < 0.08 %
R  1.0 %
(2)
R < 0.07 %
72 h, no load at - 65 °C
R  1.0 % (2)
R < 0.05 %
Low temperature operation
1 h storage, 45 min rated power at - 55 °C
R  1.0 % (2)(3)
R < 0.08 %
High temperature exposure
1000 h, no load at + 150 °C
R  1.0 % (2)(3)
R < 0.03 %
R  1.0 % (2)
R < 0.22 %
R  1.0 % (2)
R < 0.02 %
TEST (1)
Power conditioning
Thermal shock
(108)
(107)
Low temperature storage
5 cycles, - 55 °C to + 125 °C
Moisture resistance
(106)
480 h at rated power with humidity ranging
from 80 % RH to 98 % RH
Resistance to soldering heat
(210)
+ 350 °C for 3 s
R  1.0 %
(2)(3)
R < 0.27 %
Shock
(213)
18 shocks, 100 g, 6 ms, sawtooth, 3 axes
Vibration
(204)
10 Hz to 2000 Hz, 20 g, 12 h, 3 axes
R  1.0 % (2)(3)
R < 0.04 %
200 cycles
R  2.0 %
R < 0.06 %
10 000 h at rated power at + 85 °C
R  3.0 %
R < 0.23 %
Load life
(108)
Notes
(1) Numbers in parenthesis refer to test method MIL-STD-202 as
modified by the detail specification
(2) For values below 100 W, add 0.05 W to the allowable change
(3) The referenced tests also require that setting stability change
shall not exceed ± 0.05 % plus the specified maximum
resolution
DERATING
1.00
0.80
W
Rotational life
0.60
0.40
0.20
0
Revision: 07-Feb-12
25
50
75 85 100 125 150
AMBIENT TEMPERATURE °C
175
Document Number: 68016
2
For technical questions, contact: [email protected]
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
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Revision: 02-Oct-12
1
Document Number: 91000
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