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ELECTRICAL CHARACTERISTICS
STYLE
MFN-12 MFN25S MFN-25 MFN50S MFN-50 MFN1WS
MFN100
MFN2WS MFN200 MFN3WS
Power Rating at 70°C
1/6W
1/4W
1/2W
1W
2W
3W
Maximum Working Voltage
Maximum Overload Voltage
Voltage Proof
200V
400V
300V
400V
250V
500V
500V
300V
600V
350V
700V
400V
800V
700V
500V
1,000V
1,000V
Resistance Range
Operating Temp. Range
Temperature Coefficient
1 Ω - 10M Ω & 0 Ω for E24 & E96 series value
-55°C to +155°C
±15ppm/°C, ±25ppm/°C, ±50ppm/°C, ±100ppm/°C
Note: Special value is available on request
ENVIRONMENTAL CHARACTERISTICS
PERFORMANCE TEST
TEST METHOD
APPRAISE
Short Time Overload
Voltage Proof
Temperature Coefficient
Insulation Resistance
Solderability
Solvent Resistance of Marking
Robustness of Terminations
Periodic-pulse Overload
Damp Heat Steady State
Endurance at 70°C
Temperature Cycling
Resistance to Soldering Heat
IEC 60115-1 4.13
IEC 60115-1 4.7
IEC 60115-1 4.8
IEC 60115-1 4.6
IEC 60115-1 4.17
IEC 60115-1 4.30
IEC 60115-1 4.16
IEC 60115-1 4.39
IEC 60115-1 4.24
IEC 60115-1 4.25
IEC 60115-1 4.19
IEC 60115-1 4.18
2.5 times RCWV for 5 Sec.
in V-block for 60 Sec., test voltage by type
-55°C to +155°C
in V-block for 60 Sec.
235±5°C for 3±0.5 Sec.
IPA for 5±0.5 Min. with ultrasonic
Direct load for 10 Sec. in the direction of the terminal leads
4 times RCWV 10,000 cycles (1 Sec. on, 25 Sec. off)
40±2°C, 90-95% RH for 56 days, loaded with 0.1 times RCWV
70±2°C at RCWV for 1,000 Hr. (1.5 Hr. on, 0.5 Hr. off)
-55°C ? Room Temp. ? +155°C ? Room Temp. (5 cycles)
260±3°C for 10±1 Sec., immersed to a point 3±0.5mm from the body
±0.25%+0.05 Ω
No breakdown or
flashover
By type
>10,000M
95% Min. coverage
No deterioration of
coatings and markings
≥2.5kg (24.5N)
±1.0%+0.05 Ω
±1.5%+0.05 Ω
±1.5%+0.05 Ω
±0.75%+0.05 Ω
±0.25%+0.05 Ω
Note: Rated Continuous Working Voltage (RCWV) =
Power Rating x Resistance Value
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