Spectrol 74W Series

Spectrol 74W Series
Features
•
•
•
Multifinger wiper for better contact resistance
Fully sealed housing for immersion cleaning
Small compact size
Trimmer − 1/4” square, multiturn
cermet
T11
Shaft:.070 (1.78) Dia
Slot: .023 (0.58) x
.030 (0.76)
.043
(1.1)
.250 (6.35)
.039
(1.0)
.047
(1.2)
.250
(6.35)
.118 (3.0) Dia
.197 (5.0)
Spectrol No.
NTE Part No.
Value
(Ohms)
Adjust
Diag No.
74W−100
500−0280
10
Top
T11
74W−200
500−0281
20
Top
T11
74W−500
500−0282
50
Top
T11
74W−101
500−0283
100
Top
T11
74W−201
500−0284
200
Top
T11
74W−501
500−0285
500
Top
T11
74W−102
500−0286
1K
Top
T11
74W−202
500−0287
2K
Top
T11
74W−502
500−0288
5K
Top
T11
74W−103
500−0289
10K
Top
T11
74W−203
500−0290
20K
Top
T11
74W−503
500−0291
50K
Top
T11
74W−104
500−0292
100K
Top
T11
74W−204
500−0293
200K
Top
T11
74W−504
500−0294
500K
Top
T11
74W−105
500−0295
1M
Top
T11
1
2
3
.100 (2.54)
.039
(1.0)
.100 (2.54)
.170
(4.32)
2
Wiper
.100
(2.54)
1
3
Clockwise
Specifications
Electrical
Effective Travel: 12 turns nom
Resistance Range: 10Ω to 1 Meg Ω
Resistance Tolerance: ±10%
End Resistance: 2Ω max
Temperature Coefficient of Resistance: ±100 ppm/°C
Power Rating: 1/4 Watt @ 85°C derated to 0 Watts @ 125°C
Dielectric Withstanding Voltage: 600V AC
Insulation Resistance: 1000 Meg Ω min
Contact Resistance Variation: 3% or 3Ω, whichever is greater
Mechanical
Stop: Contact idles at stop
Operating Torque: 21.6mNm max
Resistance Element: Cermet
2−Terminal Adjustability: 0.05% of RT
3−Terminal Adjustability: 0.01% of applied voltage
Environmental
Operating Temperature: −55°C to +125°C
Electrical Endurance: 1000 hour
Mechanical Life: 200 cycles
20
NTE Electronics, Inc. D Voice (973) 748−5089 D FAX (973) 748−6224 D http://www.nteinc.com