Revision: 201304
79
Note: Rated Continuous Working Voltage (RCWV) = Power Rating x Resistance Value or Max. working voltage listed above, whichever less.
TEMPERATURE RISE
ELECTRICAL CHARACTERISTICS
STYLE AHA500 AHA10A AHA25A AHA50A AHA80A AHA10B AHA25B
AHP500 AHP10A AHP25A AHP50A
Power Rating on std. heatsink at
25°C
5W 10W 25W 50W 80W 100W 250W
Voltage Proof on Insulation 1,000V 2,000V 4,500V
Resistance Range 0.1Ω - 1KΩ 0.1Ω - 1.5KΩ 0.1Ω - 10KΩ 0.1Ω - 33KΩ 0.1Ω - 39KΩ 0.1Ω - 51KΩ
Operating Temp. Range -55°C to +250°C
Temperature Coefcient ±50ppm/°C, ±100ppm/°C, ±200ppm/°C
Note: Special value is available on request.
Temperature (°C)
Rated Load (%)
100806040
250W
80W-100W
5W-50W
200
250
300
350
150
100
50
20
ENVIRONMENTAL CHARACTERISTICS
PERFORMANCE TEST TEST METHOD APPRAISE
Short Time Overload IEC 60115-1 4.13 5 times of rated power for 5 sec. ±1.0%+0.05Ω
Voltage Proof on Insulation IEC 60115-1 4.7 in V-block for 60 Sec., test voltage by type By type
Temperature Coefcient IEC 60115-1 4.8 -55°C to +250°C By type
Insulation Resistance IEC 60115-1 4.6 in V-block for 60 Sec. >100MΩ
Solderability IEC 60115-1 4.17 235±5°C for 3±0.5 Sec. 95% Min. coverage
Solvent Resistance of Marking IEC 60115-1 4.30 IPA for 5±0.5 Min. with ultrasonic
No deterioration of
coatings and markings
Pull test (30 Sec. Min): 5W: 1kg, 10W: 2.3kg, 25 - 50W: 4.5kg
Robustness of Terminations IEC 60115-1 4.16
Torque test (5 - 15 Sec): 80W: 2N, 100W: 2.7N, 250W: 3.7N
±0.2%+0.05Ω
Damp Heat Steady State IEC 60115-1 4.24 40±2°C, 90-95% RH for 56 days, loaded with 0.1 times RCWV ±5.0%+0.05Ω
Endurance at 70°C IEC 60115-1 4.25 70±2°C at RCWV for 1,000 Hr. (1.5 Hr. on, 0.5 Hr. off) ±5.0%+0.05Ω
Temperature Cycling IEC 60115-1 4.19 -55°C Room Temp. +155°C Room Temp. (5 cycles) ±1.0%+0.05Ω
Resistance to Soldering Heat IEC 60115-1 4.18 260±3°C for 10±1 Sec., immersed to a point 3±0.5mm from the body ±1.0%+0.05Ω
