Metal Film Resistors - MFR Series Print
Resistor Series - Resistor Series
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Tuesday, 10 June 2008 21:15

  Metal Film Resistors - MFR Series

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METAL FILM RESISTORS - MFR Series      
          Resistor 
TypePopwer FEATURES     
MFR-12:1/6W; 1/8W MIL-R-1059F.     
MFR-25:1/4W MFR-12, MFR-25, MFR-50, MFR-100, MFR-200.   
MFR-50:1/2W (RN-50, RN-55, RN-60, RN-65, RN-70)    
MFR-100:1W Resistance Tolerance :±0.05%, ±0.1%,± 0.25%, ±0.5%,± 1%  
MFR-200:2W T.C.R. :15ppm, 25ppm, 50ppm, 100ppm     
             
INTRODUCTION           
             
The MF series Metal Film Resistors are manufactured using vacuum sputtering system to deposit multiple layers of mixed metals and passivative materials onto a carefully treated fight grade ceramic substrate, the resistors are coated with layers of light-blue lacquer. 
 
             
DIMENSIONS:           
             

STYLE

DIMENSION (mm)

POWER RATING

VALUE

  

L

ΦD

H

Φd

(Watt)

RANGE

  

MFR-12

3.2±0.2

1.8±0.3

28±2

0.43±0.02

1/6W  1/8W

1~10MΩ

 

 

MFR-25

6.0±0.2

2.3±0.3

28±2

0.5±0.02

1/4W

1~10MΩ

 

 

MFR-50

9±0.5

3.2±0.3

26±2

0.6±0.02

1/2W

1~10MΩ

 

 

MFR-100

11.0±0.5

4.5±0.5

35±2

0.7±0.02

1W

1~10MΩ

 

 

MFR-200

15.0±0.5

5.0±0.5

32±2

0.8±0.02

2W

1~10MΩ

 

 

MFR-300

17.0±0.5

6.0±0.5

32±2

0.8±0.02

3W

1~10MΩ

  
             

ELECTRICAL CHARACTERISTICS:

         
             
StyleMF-12MF-25MF-50MF-100MF-200     
Power Rating 70oC1/6; 1/8W1/4W1/2W1W2W     
Operating Temp. Range-55oC ~ +155oC     
Max. Working Voltage200V250V350V500V500V     
Max. Overload Voltage400V600V700V1000V1000V     
Dielectric Withstanding Voltage (AC)300V500V700V1000V1000V     
Max. Intermittence Overload Voltage400V600V700V1000V1000V     
Value Range: ±0.25%, ±0.5%, ±1%10Ω ~1MΩ     
Value Range: ±0.05%, ±0.1%100Ω ~100KΩ     
Temp. Coefficient (by Type)±15ppm, ±25ppm , ±50ppm, ±100ppm     
             
ENVIRONMENTAL CHARACTERISTICS :    
             
PERFORMANCE TESTTEST METHODAPPRAISE 
Short Time OverloadJIS-C-5202 5.5 : 2.5 times RCWV for 5 seconds±(0.75%+0.05)Ω 
Dielectric Withstanding V.JIS-C-5202 5.7 : in V-Block for 60 secondsBy Type 
Temperature CoefficientJIS-C-5202 5.2 : -55oC ~+155oCBy Type 
Insulation ResistanceJIS-C-5202 5.6 : in V-Block≧1000 MΩ 
SolderabilityJIS-C-5202 6.5 : 230oC for 5±0.5 seconds95% min. coverage 
Resistance to SolventJIS-C-5202 6.9 : Trichroethance for 1 min. with ultrasonicno deterioration 
Terminal StrengthDirect load for 10 sec. In the direction of the terminal leads≧2.5KG/24.5N 
Pulse OverloadJIS-C-5202 5.8 : 4 time RCWV 10000 cycles(1 sec.on, 25 sec.off)±(2%+0.05)Ω 
Load Life in HumidityJIS-C-5202 7.9 : 40±2oC, 90~95% RH at RCWV for 1000 hrs±(3%+0.05)Ω 
(1.5hrs. on, 0.5 hrs. off) 
Load LifeJIS-C-5202 7.10 : 70oC at RCWV for 1000hrs (1.5hrs.on, 0.5hrs.off)±(3%+0.05)Ω 
Temperature Cycling　±(1%+0.05)Ω 
Soldering Heat　±(1%+0.05)Ω 
             
 
 
 
             
 

 

 

 
Last Updated ( Sunday, 21 September 2008 10:33 )