Electrical characteristics
Range of nominal resistance: 11.7K Ω
Allowable deviation of resistance value Resistance tolerance: ± 5%
Terminal resistance: ≤ 0.25% R or 2 Ω
Peak Noise: ≤ 100 Ω
Dielectric withstand voltage Normal atmospheric pressure: 800Vac, low pressure: 350 Vac
Effective electric travel: 140 ° for electrical travel
Mechanical travel (without stop): 360 °
Environmental Characteristics
Rated power (300V max): 1W @ 70 ℃
Limit voltage of resistor: 300V
Maximum current of moving contact: 50mA
Temperature range -55 ℃~+125 ℃
Temperature coefficient TCR: ± 100 × 10-6/℃
Mechanical durability Life Expectancy: 5000 weeks △ R ≤± (2% R+0.1) ENR ≤ 500 Ω
Load abrasion resistance life Expectancy at high temperature: 5000 weeks,
Temperature shock -65 ℃~+125 ℃, 5 times, Δ R ≤± (1% R+0.1), Δ (Uab/Uc) ≤± 1%
Moisture proof: Δ R ≤± (2% R+0.1) Insulation resistance ≥ 1M Ω ENR ≤ 500 Ω
High frequency vibration Δ R ≤± (0.5% R+0.05) △ (Uab/Uc) ≤± 1%
Shock: Δ R ≤± (0.5% R+0.05) Δ (Uab/Uc) ≤± 5%. Electrical interruptions greater than 0.1ms are not allowed
Life at high temperature 70 ℃, 1000h, Δ R ≤± (2% R+0.1) ENR ≤ 500 Ω, insulation resistance ≥ 1G Ω
physical properties
Starting torque: ≤ 5mN. m
Mark: Trade mark, model type, resistance, circuit

WR1800 national standard and military potentiometer