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MFS Series Miniature Style Metal Film Resistors

ELECTRICAL CHARACTERISTICS

Style MFS-25 MFS-50 MFS-100 MFS-200 MFS-300 -
Power Rating 70 o C 1/4WS 1/2WS 1WS 2WS 3WS -
Operating Temp. Range -55 o C ~ +155 o C
Max. Working Voltage 200V 250V 350V 500V 500V -
Max. Overload Voltage 400V 600V 700V 1000V 1000V -
Dielectric Withstanding Voltage (AC) 300V 500V 700V 1000V 1000V -
Max. Intermittence Overload Voltage 400V 600V 700V 1000V 1000V -
Value Range ¡Ó0.25%, ¡Ó0.5%, ¡Ó1% 10 £[ ~1M £[
Value Range ¡Ó0.05%, ¡Ó0.1% 100 £[ ~100K £[
Temp. Coefficient (by Type) ¡Ó15ppm, ¡Ó25ppm , ¡Ó50ppm, ¡Ó100ppm
* The listed resistance range for standard resistance, below or over this resistance is on request.

ENVIRONMENTAL CHARACTERISTICS

PERFORMANCE TEST TEST METHOD APPRAISE
Short Time Overload JIS-C-5202 5.5 : 2.5 times RCWV for 5 seconds ¡Ó(0.5%+0.05 £[)
Dielectric Withstanding V. JIS-C-5202 5.7 : in V-Block for 60 seconds By Type
Temperature Coefficient JIS-C-5202 5.2 : -55 o C ~+155 o C By Type
Insulation Resistance JIS-C-5202 5.6 : in V-Block ¡Ó 1000 M £[
Solderability JIS-C-5202 6.5 : 235 o C for 5 ¡Ó0.5 seconds 95% min. coverage
Resistance to Solvent JIS-C-5202 6.9 : Trichroethance for 1 min. with ultrasonic no deterioration
Terminal Strength Direct load for 10 sec. In the direction of the terminal leads ¡Ó2.5KG/24.5N
Pulse Overload JIS-C-5202 5.8 : 4 time RCWV 10000 cycles(1 sec.on, 25 sec.off) ¡Ó(0.5%+0.05 £[)
Load Life in Humidity JIS-C-5202 7.9 : 40 ¡Ó2 o C, 90~95% RH at RCWV for 1000 hrs
(1.5hrs. on, 0.5 hrs. off) 		¡Ó(1.5%+0.05 £[)
Load Life JIS-C-5202 7.10 : 70 o C at RCWV for 1000hrs (1.5hrs.on, 0.5hrs.off) ¡Ó(1.5%+0.05 £[)
Temperature Cycling JIS-C-5202 7.4 : -55 o C~room temp.~155 o C~room temp for 5 cycle ¡Ó(0.5%+0.05 £[)
Soldering Heat JIS-C-5202 6.4 : 350 ¡Ó10 o C for 3 ¡Ó0.5 seconds ¡Ó(0.5%+0.05 £[)