Product Line

Metal Oxide Series Resistors

Product Name : FLAMEPROOF FUSIBLE RESISTORS

Description


INTRODUCTION:
FMF series is a low cost type resistor provides circuit protection for overload or component failure. The resistor will be opened quickly under continuous load, it prevents circuit board from damage and fire hazards.

FEATURES:
  • Suitable to apply in transistor protection circuit.
  • Small in sizes with low cost.
  • Noncombustible insulating coat, solvent proof and excellent application in high temperature.
  • Good TCR±100ppm/℃
  • Uniform in fusing time

DIMENSIONS:


GENERAL SPECIFICATIONS:
STYLE POWER RATING DIMENSION (mm) MAX WORKING VOLTAGE MAX OVERLODAD VOLTAGE RESISTANCE RANGE
L D d H( MIN) ±5%(J)
FMF-12 1/8W 3.7±0.4 1.8±0.2 0.46±0.02 27 200 400 0.1Ω~10KΩ
FMF-25 1/4W 6.8±0.5 2.5±0.2 0.53±0.03 27 250 500 0.1Ω~10KΩ
FMF-50 1/2W 9 ±1.0 3.0±0.5 0.58±0.02 25 300 600 0.1Ω~10KΩ
FMF-100 1W 12±1.0 4.5±0.5 0.8±0.03 30 350 700 0.1Ω~10KΩ
FMF-200 2W 16±1.0 5.0±0.5 0.8±0.03 30 350 700 0.1Ω~10KΩ

STYLE POWER RATING DIMENSION (mm) MAX WORKING VOLTAGE MAX OVERLODAD VOLTAGE RESISTANCE RANGE
L D d H( MIN) ±5%(J)
FMF-25S 1/4WS 3.7±0.4 1.8±0.2 0.46±0.02 27 250 500 0.1Ω~10KΩ
FMF-50S 1/2WS 6.8±0.5 2.5±0.2 0.53±0.03 27 300 600 0.1Ω~10KΩ
FMF-100S 1WS 9±1 3.0±0.5 0.68±0.02 25 350 700 0.1Ω~10KΩ
FMF-200S 2WS 12±1 4.5±0.5 0.8±0.03 30 350 700 0.1Ω~10KΩ
FMF-300S 3WS 16±1 5.0±0.5 0.8±0.03 30 400 800 0.1Ω~10KΩ

DERATING CURVE:    


FUSING CHARACTERISTICS:
POWER FUSHING TIME
MAX
16 x Wattage 1Min.
20 40Sec.
24 30Sec.
28 20Sec.
32 15Sec.
NOTE:
1.Same fusing chart for FMF, FKN and FSQ series.
2.Special fusing time according to customers' spec is also available.

CHARACTERISTICS:
Test Items Condition Spec
Operating Temp -55℃~275℃  
Resistance Temp. Coeff -30℃~150℃ ±300 PPM/℃
Short Time Overload 2.5 times of rated voltage for 5 sec. ±2%
Insulation Resistance 500V megger 1,000MΩ
Temp. Cycle -30℃~85℃  for 5  cycles ±1%
Load Life 70℃ on-off cycle 1,000 hrs. ±5%
Moisture-Proof Load Life 40℃ 95% RH on-off cycle 1,000 hrs. ±5%
Solder Pot 270℃ for 3 secretary. ±1%
Incombustibility 16 times of rated wattage for 5min not flamed




FUSIBLE WIRE WOUND TYPE FKN , FSQ SERIES:

DIMENSIONS:

GENERAL SPECIFICATIONS:
STYLE POWER RATING DIMENSION (mm) RESISTANCE RANGE Dielectric Withstanding Voltage
L±1.5 D±1 H±0.5 W±0.5 H(MIN) D±0.05
FKN 1W 9 4.5 30 0.65 0.1Ω~72Ω 500V
2W 11 5.0 30 0.8 0.1Ω~60Ω 500V
3W 13 5.5 30 0.8 0.1Ω~100Ω 500V
5W 17 6.5 30 0.8 0.2Ω~200Ω 500V
6W 19 6.5 30 0.8 0.3Ω~250Ω 500V
FSQ 2W 18 7 7 30 0.8 0.1Ω~22Ω 1000V
3W 22 8 8 30 0.8 0.1Ω~120Ω 1000V
5W 22 9 10 30 0.8 0.2Ω~120Ω 1000V
7W 35 9 10 30 0.8 0.3Ω~250Ω 1000V
10W 48 9 10 30 0.8 0.3Ω~500Ω 1000V

DERATING CURVE:


FUSING CHARACTERISTICS:
POWER FUSHING TIME
MAX
16 x Wattage 1Min
20 40Sec
24 30Sec
28 20Sec
32 15Sec
NOTE:
1.Same fusing chart for FMF, FKN and FSQ series.           
2.Special fusing time according to customers' spec is also available.  

CHARACTERISTICS:
Characteristics Condition Spec
Operating Temp -40℃~240℃  
Resistance Temp. Co eff -30℃~150℃ ±200 PPM/℃
Short Time Overload 2.5 times of rated wattage for 5 sec. ±2%
Insulation Resistance 500V megger 1,000MΩ
Temp. Cycle -30℃~85℃ for 5  cycles ±1%
Load Life 25℃ on-off cycle 1,000 hrs. ±5%
Moisture-Proof Load Life 40℃ 95% RH on-off cycle 1,000 hrs. ±5%
Solder Pot 270℃ for 3 sec. ±1%
Incombustibility 16 times of rated wattage for 5 min. not flamed

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