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RESISTOR CATEGORIES > MINIATURE STYLE RESISTORS > MFS Series
MFS Series
MFS Series Miniature Style Metal Film Resistors

ELECTRICAL CHARACTERISTICS

Style MFS-25 MFS-50 MFS-100 MFS-200 MFS-300 -
Power Rating 70°C 1/4WS 1/2WS 1WS 2WS 3WS -
Operating Temp. Range -55°C ~ +155°C
Max. Working Voltage 200V 300V 400V 500V 500V -
Max. Overload Voltage 400V 600V 800V 1000V 1000V -
Dielectric Withstanding Voltage (AC) 300V 500V 700V 1000V 1000V -
Max. Intermittence Overload Voltage 400V 600V 700V 1000V 1000V -
Value Range ?.25%, ?.5%, ?% 10Ω ~1MΩ
Value Range ?.05%, ?.1% 100Ω ~100KΩ
Temp. Coefficient (by Type) ?5ppm, ?5ppm , ?0ppm, ?00ppm
* 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 ?0.5%+0.05 Ω)
Dielectric Withstanding V. JIS-C-5202 5.7 : in V-Block for 60 seconds By Type
Temperature Coefficient JIS-C-5202 5.2 : -55°C ~+155°C By Type
Insulation Resistance JIS-C-5202 5.6 : in V-Block ≥1000 MΩ
Solderability JIS-C-5202 6.5 : 235°C for 5?.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 ?.5KG/24.5N
Pulse Overload JIS-C-5202 5.8 : 4 time RCWV 10000 cycles(1 sec.on, 25 sec.off) ?2%+0.05Ω)
Load Life in Humidity JIS-C-5202 7.9 : 40 ?°C, 90~95% RH at RCWV for 1000 hrs
(1.5hrs. on, 0.5 hrs. off)
?1.5%+0.05Ω)
Load Life JIS-C-5202 7.10 : 70°C at RCWV for 0.5hrs (1.5hrs.on, 0.5hrs.off) ?1.5%+0.05Ω)
Temperature Cycling JIS-C-5202 7.10 : -55°C room temp.155°C room temp. for 5 cycles ?0.5%+0.05Ω)
Soldering Heat JIS-C-5202 7.10 : 350 ?0°C for 3 ?.5 seconds ?0.5%+0.05Ω)
WILDEX CORPORATION
6F, NO.151, Sec.3, Beishen Rd, Shenkeng Dist, New Taipei City, Taiwan.
TEL:886-2-26641909 FAX:886-2-26640242 wildex@wildexco.com
wildex@ms26.hinet.net