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

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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