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Features
• Multifinger wiper for better contact resistance
• Fully sealed housing for immersion cleaning
• Small compact size
Spectrol 74W Series
Trimmer − 1/4” square, multiturn
cermet
T11
Spectrol No. NTE Part 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
Value
(Ohms)
Adjust Diag No.
Shaft:.070 (1.78) Dia
Slot: .023 (0.58) x
.030 (0.76)
.043
(1.1)
2
1
Clockwise
Wiper
.039
(1.0)
.250
(6.35)
.197 (5.0)
.100 (2.54)
.039
(1.0)
.100
(2.54)
.250 (6.35)
.047
(1.2)
123
.100 (2.54)
.118 (3.0) Dia
.170
(4.32)
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
3
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NTE Electronics, Inc. D Voice (973) 748−5089 D FAX (973) 748−6224 D http://www.nteinc.com
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