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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