Standard Electrical Specification
Type Wattage
Rating
(W)		 Resistance Range (Ω) Max. Working (V) Proper heat sink
(Aluminum chassis)
AH
Inductive		 AHN
Non-inductive		 AH
Inductive		 AHN
Non-inductive
AH-25L 25 0.012~15K 0.02~5.5K 500 300 178*127*51*1t
AH-50L 50 0.01~40K 0.02~12K 1300 600 305*305*1.5t
AH-150NL 150 0.4~50K 0.12~25K 1900 1340 305*305*3t
AH-150ANL 150 0.4~50K 0.12~25K 1900 1340 305*305*3t
Notice: All dimensions might be changed or modified, please refer to last updating specification.

Performance
Parameters Test Conditions Specifications
Short Time Over Load 5 × wattage rating-5sec. Δ R±(2%+0.1Ω) Max.
Moistrue Resistance Temp 40°C moisture 95% DC 100V 500Hr Δ R±(1%+0.1Ω) Max.
Moisture Load Life Temp 40°C moisture 95% 1/10 × wattage rating
(1.5Hr on-0.5Hr OFF) - Repeat 200Hr		 Δ R±(1%+0.1Ω) Max.
Load Life Load Rating (chassis mounted)
(1.5Hour on 0.5Hour OFF) Repeat 1000Hours		 Δ R±(5%+0.1Ω) Max.
Vibration 10c/s~50c/s~10c/s (1Min) - 2Hours
each of paralleled and right angle		 Δ R±(1%+0.05Ω) Max.
Heat Resistance 260±5°C, 10±1Sec. Δ R±(1%+0.05Ω) Max.
Dielectric Strength AH-5, AH-10, AH-25 1000V
AH-50 1500V
AH-100, AH-250 2000V		 Δ R±(0.5%+0.05Ω) Max.
Insulation Resistance Under the same test condition of Dielectric Strength,
Load DC500V and measure the Insulation R.		 10MΩ Min.
Terminal Strength (1)Pull Test (30 sec Min)
AH-51kg, AH-10 2.3kg, AH-25, AH-50 4.5kg
(2)Torque Test (5~15sec)
AH-100 27kg-cm, AH-250 36kg-cm		 Δ R±(0.2%+0.05Ω) Max.
Surface Temperature Versus Power Load (on Chassis) Deratning
power resistors power resistors
Derating is required to reduce chassis outing area and for high ambient temperatures.
Curves: A=5 & 10 watt units, unmounted.B=25 watt units, unmounted.C=50, 100 & 250 watt units, unmounted.

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