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27
Models 117
S
, 126
S
, 151
S
and 176
S
Vishay Techno
Document Number 68016
Revision 23-Sep-99
W Lead Style - 151
S
X Lead Style - 176
S
0.190
±
0.005
[4.83
±
0.127]
0.139
±
0.005
[3.53
±
0.127]
0.093
±
0.005
[2.36
±
0.127]
Dia.
0.100
±
0.005
[2.54
±
0.127]
0.100
±
0.005
[2.54
±
0.127]
0.190
±
0.005
[4.83
±
0.127]
0.139
±
0.005
[3.53
±
0.127]
0.314
±
0.005
[7.98
±
0.127]
0.093
±
0.005
[2.36
±
0.127]
Dia.
0.410
±
0.010
[10.41
±
0.254]
0.027
±
0.002
[.686
±
0.051]
Dia.
0.040
±
0.005
[1.02
±
0.127]
0.023
±
0.003
[.584
±
0.076]
0.025
±
0.003
[.635
±
0.076]
1
2
3
0.100
±
0.005
[2.54
±
.127]
0.375
±
0.005
[9.52
±
0.127]
0.100
±
0.005
[2.54
±
0.127]
0.300 [7.62]
Min.
0.346
±
0.005
[8.79
±
0.127]
0.410
±
0.005
[10.41
±
0.127]
0.025
±
0.003
[0.635
±
0.076]
0.023
±
0.003
[.584
±
0.076]
0.027
±
0.002
[.686
±
0.051]
Dia.
0.300 [7.62]
Min.
0.375
±
0.005
[9.52
±
0.127]
0.040
±
0.005
[1.02
±
0.127]
1
2
3
DIMENSIONAL CONFIGURATIONS 3/8" [9.52mm] Square
[Numbers in brackets indicate millimeters]
1
Numbers in parenthesis refer to test method MIL-STD-202 as modified by the detail specification.
2
For values below 100 ohms, add 0.05 ohm to the allowable change.
3
The referenced tests also require that setting stability change shall not exceed
±
0.05 percent plus the specified maximum resolution.
ENVIRONMENTAL PERFORMANCE
MIL-PRF-39015
REQUIREMENT
R
≤
0.5%
2
R
≤
1.0%
2
R
≤
1.0%
2
R
≤
1.0%
2,3
R
≤
1.0%
2,3
R
≤
1.0%
2
TYPICAL
CHANGE
R < 0.08%
R < 0.07%
R < 0.05%
R < 0.08%
R < 0.03%
R < 0.22%
TEST
1
CONDITIONS
50 hours at 1 watt at + 25
°
C
5 cycles, -55
°
C to + 125
°
C
72 hours, no load at - 65
°
C
1 hour storage, 45 minutes rated power at - 55
°
C
1000 hours, no load at + 150
°
C
Power Conditioning
(108)
Thermal Shock
(107)
Low Temperature Storage
Low Temperature Operation
High Temperature Exposure
Moisture Resistance
(106)
480 hours at rated power with humidity ranging
from 80% RH to 98% RH
Resistance to Soldering Heat
(210)
+ 350
°
C for 3 seconds
R
≤
1.0%
2
R
≤
1.0%
2,3
R
≤
1.0%
2,3
R
≤
2.0%
R
≤
3.0%
R < 0.02%
R < 0.27%
R < 0.04%
R < 0.06%
R < 0.23%
Shock
(213)
18 shocks, 100g, 6 ms, sawtooth, 3 axes
Vibration
(204)
10 to 2000 Hz, 20g, 12 hours, 3 axes
Rotational Life
200 cycles
Load Life
(108)
10,000 hours at rated power at + 85
°
C
DERATING
HOW TO ORDER
W
0
25
50
75 85 100
125
150
175
AMBIENT TEMP. DEG. CENTIGRADE
1.00
0.80
0.60
0.40
0.20
501
VALUE
First two digits are significant
figures. Last digit specifies
number of zeros to follow.
117
S
MODEL
117
S
= Teflon Leadwire
126
S
= PC Mount
151
S
= Top Adjustment Screw
176
S
= Side Adjustment Screw