¡@ Fixed Metal Film Resistor

FEATURES :

¡@                                      Clink for larger

High precision and low T.C.R. metal film resistor.
Excellent stability for long time service.
Automatic insertion is applicable.

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CHARACTERISTICS¡@ ¡G
ITEM  
SPEC  
REMARKS 

Load life under high temperature

 ¡Ó1%

JIS-C-5202 7.10¡@Rated voltage at 70¢J for 1,000 hours

Load life under high humidity

 ¡Ó1%

JIS-C-5202 7.90¡@Rated voltage at 40¢J,95% RH for 1,000 hours

Temp. coeff. of resistance

 Within specified T.C.R.

JIS-C-5202 5.20¡@Room temp. + 100¢J

Short time overload

¡Ó0.5%

JIS-C-5202 5.50¡@6.25 times the rated power for 5 seconds

Intermittent overload

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¡Ó1%

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JIS-C-5202 5.80¡@Rated voltage x 3(RNU1/6W,RNS1/4W), Rated

JIS-C-5202 7.10¡@voltage x 4 (RNU1/4W, RNS1/2W,RNU1/2W) or

JIS-C-5202 7.10¡@Max. overload Voltage for 1,000 cycle, whichever

JIS-C-5202 7.10¡@less

Temperature cycling

 ¡Ó1%

JIS-C-5202 7.40¡@5 cycles for -55 ~ +155¢J

Immersion in solder

 ¡Ó0.5%

JIS-C-5202 6.40¡@350¢J for 3.5 seconds

Solderability

95% Coverage min.

JIS-C-5202 6.50¡@245¢J for 3.5 seconds

Insulation resistance

 >1,000M£[

JIS-C-5202 5.60¡@100 volt megger

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For resistors operated in ambient temperature over 70¢J,
power rating must be derated in accordance with the
curve left.

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AXIAL LEAD TYPE¡@¡G

TYPE

Power

Rating

@70C

Dimensions  (mm)

Maximum

Working

Voltage

Maximum

Overload

Voltage

L

D

H

d
 MF- 12 1/8W, 1/16W 3.2 + - 0.2 1.5 + - 0.2 28 + - 2 0.48 + - 0.02 200 V 400 V
 MF- 25S 1/4WS 3.2 + - 0.2 1.5 + - 0.2 28 + - 2 0.48 + - 0.02 250 V 500 V
 MF- 25 1/4W 6.0 + - 0.5 2.3 + - 0.3 28 + - 2 0.60 + - 0.02 250 V 500 V
 MF- 50S 1/2WS 8.5 + - 0.5 2.7 + - 0.5 28 + - 2 0.60 + - 0.02 350 V 700 V
 MF- 50 1/2W 9.0 + - 0.5 3.2 + - 0.5 28 + - 2 0.60 + - 0.02 350 V 700 V
 MF- 100S 1WS 9.0 + - 0.5 3.2 + - 0.5 28 + - 2 0.60 + - 0.02 500 V 1000 V
 MF- 100 1W 11 + - 1.0 4.0 + - 0.5 35 + - 3 0.80 + - 0.02 500 V 1000 V
 MF- 200S 2WS 11 + - 1.0 4.0 + - 0.5 35 + - 3 0.80 + - 0.02 500 V 1000 V
 MF- 200 2W 15 + - 1.0 5.0 + - 0.5 35 + - 3 0.80 + - 0.02 500 V 1000 V

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TAPING TYPE¡@¡G

Type
Dimensions (mm)
W
P
L
T
Z
R
A26
26¡Ó1
5¡Ó0.5
MAX.1.0
6¡Ó0.5
MAX.1.2
0
A52
52¡Ó1
5¡Ó0.5
MAX.1.0
6¡Ó0.5
MAX.1.2
0

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S : maximum 0.8 mm for all ratings 

t : minimum 3.2 mm for all ratings 

RATING¡@¡G

       

STYLE

MIL

STYLE

TOLERANCE

TC +- 25ppm/0C

TC +- 50ppm/0C

TC +- 100ppm/0C

TC +- 200ppm/0C
MF - 12

MF - 16

 RN-50 + - 0.1% 100ohm ~ 100kohm 51.1ohm ~ 511kohm 5.11ohm ~ 5.11Mohm
+ - 0.25%
+ - 0.5%
+ - 1%
MF - 25 RN-55 + - 0.1% 100ohm ~ 100kohm 5.11ohm ~ 2.4Mohm 5.11ohm ~ 5.11Mohm
+ - 0.25% 100ohm ~ 100kohm
+ - 0.5% 51.1ohm ~ 511kohm
+ - 1% 51.1ohm ~ 511kohm
MF - 50 RN-60 + - 0.1% 100ohm ~ 100kohm 5.11ohm ~ 2.4Mohm 5.11ohm ~ 5.11Mohm
+ - 0.25% 100ohm ~ 330kohm
+ - 0.5% 51.1ohm ~ 1Mohm
+ - 1% 51.1ohm ~ 1Mohm
MF - 100 RN-65 + - 0.1% 100ohm ~ 330kohm 5.11ohm ~ 2.4Mohm 5.11ohm ~ 5.11Mohm
+ - 0.25% 100ohm ~ 511kohm
+ - 0.5% 51.1ohm ~ 1Mohm
+ - 1% 51.1ohm ~ 1Mohm
MF -200 RN-70 + - 0.1% 100ohm ~ 330kohm 5.11ohm ~ 5.11Mohm 5.11ohm ~ 5.11Mohm
+ - 0.25% 100ohm ~ 511kohm
+ - 0.5% 51.1ohm ~ 1Mohm
+ - 1% 51.1ohm ~ 1Mohm

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