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RESISTOR CATEGORIES > ULTRA MINIATURE STYLE METAL FILM RESISTOR > FMR Series
FMR Series
FMR Series Ultra Miniature Style Metal Film Resistors

METAL FILM RESISTORS
FMR Series

0.4W, 0.5W, 0.6W, 1W, 1.8W, 3W
FMR-10, FMR20, FMR30, FMR-01, FMR-02, FMR-03

INTRODUCTION

The FMF Series flame-proof type miniature Metal Film Resistors are manufactured by vacuum depots it metal film on high thermal conductivity and specific gravity Rosenthal ceramic or same grade Japanese rods. The both ends of ceramic are coated with precision mixed metals which help to prevent against noise, and to provide low TCR and low Tol precision resistors can meet MIL and JIS requirement.
Utilizing a 95~98% of AI ceramic cores and combined a special cutting technology inside, this resulting superior resistors give excellent heat dissipation, stable performance and significantly up-grade the power rating.
This specially designed resistors are widely used by the industries of communication devices, meters, high-class, audio equipments and precision military defending facilities as well.

FEATURES
  • Resistance Tolerance: ?%, ?%, ?%.
  • Excellent long-term stability.
  • High power-to-size ratio for significant space saving.
  • Variety of packing: bulk, strip pack, 26mm and 52mm tape and reel, cut and forming.
DIMENSIONS:
STYLE DIMENSION (mm) POWER RATING
(Watt) 		VALUE
RANGE
L ФD H Фd
FMR-10 3.3 ?.4 1.8 ?.3 28 ? 0.5 ?.05 0.5W 10 Ω~1M
FMR-20 6.3 ?.5 2.3 ?.3 28 ? 0.6 ?.05 0.4W 10 Ω~1M
FMR-30 6.3 ?.5 2.3 ?.3 28 ? 0.6 ?.05 0.6W 10 Ω~1M
FMR-01 6.3 ?.5 2.3 ?.3 28 ? 0.6 ?.05 1W 10 Ω~1M
FMR-02 9 ?.5 3.2 ?.5 26 ? 0.6 ?.05 1.8W 10 Ω~1M
FMR -03 15.5 ?.0 5.0 ?.5 32 ? 0.6 ?.05 3W 10 Ω~1M
ELECTRICAL CHARACTERISTICS:
Style FMR-10 FMR-20 FMR-30 FMR-01 FMR-02 FMR-03
Power Rating 70°C 0.5W 0.4W 0.6W 1W 1.8W 3W
Operating Temp. Range -55°C ~ +155°C
Max. Working Voltage 200V 250V 250V 250V 350V 400V
Max. Overload Voltage 400V 500V 500V 500V 600V 700V
Dielectric Withstanding Voltage (AC) 300V 350V 350V 350V 400V 500V
Max. Intermittence Overload Voltage 250V 300V 300V 300V 500V 1000V
Value Range ?%, ?% 10 Ω ~1K Ω
Temp. Coefficient (by Type) ?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 ?0.25%+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 M Ω
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 times RCWV 0.5 cycles(1 sec.on, 25 sec.off) ?0.5%+0.05 Ω)
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) 		?0.5%+0.05 Ω)
Load Life JIS-C-5202 7.10 : 70°C at RCWV for 1000hrs (1.5hrs.on, 0.5hrs.off) ?0.5%+0.05 Ω)
Temperature Cycling JIS-C-5202 7.4 : 65°C→ room temp.→150 °C→ room temp for 5 cycles. ?0.25%+0.05 Ω)
Soldering Heat JIS-C-5202 6.4 : 350 ?0°C for 3 ?.5 seconds ?0.25%+0.05 Ω)
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