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