Product Name: Metal Film Fixed Resistors
Product description:

Name: Metal Film Fixed Resistors

 

I. Feature

Temperature coefficient, high precision, low noise, high-frequency performance
Ambient temperature: -55 ° C to +125 ° C
Body color is the sky blue
According to customer requirements, we are able to provide more precision (such as: ± 0.5% ± 0.1% ± 0.2, ± 0.01%) and lower temperature coefficient (eg: 10ppm, 15ppm, 25ppm), high-performance metal film resistors
II Size Chart





Type
 Dimensions (mm)
 Resistance range
Power
 L
 D
 H
 d ± 0.05
 ± 1% (F), ± 0.1% (B)
The MFR-25s
 MF-1/6W (1/4Ws)
 3.2 ± 0.2 1.8 ± 0.2 28 ± 2.0 0.45 1Ω-22MΩ
The MFR-50s
 MF-1/4W (1/2Ws)
 6.0 ± 0.5 2.3 ± 0.5
 28 ± 2.0
 0.50
 1Ω-22MΩ
MFR-50 (MFR1ws)
 MF-1/2W (1Ws)
 9.0 ± 0.5 3.2 ± 0.5
 26 ± 2.0
 0.60
 1Ω-10MΩ
MFR100 (MFR2ws)
 MF-1W (2Ws)
 11.0 ± 1.0 4.2 ± 0.5 26 ± 3.0 0.70 1Ω-10MΩ
MFR200 (MFR3ws)
 MF-2W (3Ws)
 15.0 ± 1.0 5.0 ± 0.5 26 ± 3.0 0.75 1Ω-10MΩ
MFR300
 MF-3W
 17.0 ± 1.0 6.0 ± 0.5 30 ± 2.0 0.75 1Ω-10MΩ
MFR500
 MF-5W
 25 ± 1.0 8.0 ± 0.5 35 ± 2.0 0.75 1Ω-10MΩ
 
 
  


III. Down load curve



IV. Performance parameters

Type
 The highest maximum operating voltage of the maximum overload voltage intermittent overload voltage withstanding voltage
Power
 
, 12.5 MF-1/6W MFR-150V
 300V
 300V
 300V
 
MFR-25 MF-1/4W 250V
 500V
 500V
 500V
 
MFR-25s MF-1/4Ws 150V
 300V
 300V
 300V
 
MFR-50 MF-1/2W 300V
 600V
 700V
 700V
 
MFR-50s MF-1/2Ws 250V
 500V
 500V
 500V
 
MFR100 MF-1W 350V
 700V
 700V
 1000V
 
MFR1Ws MF-1Ws 300V
 600V
 700V
 700V
 
MFR200 MF-2W 500V
 1000V
 1000V
 1000V
 
MFR2Ws MF-2Ws 350V
 700V
 700V
 1000V
 
MFR3Ws MF-3Ws 500V
 1000V
 1000V
 1000V
 
 
 
Note: "S" indicates the miniaturization
 
V. electrical characteristics



Project
 Performance requirements
 Test methods
 
Temperature coefficient of ± 10ppm, ± 25ppm
± 50ppm, ± 100ppm JIS5202-5.2
-55 ° C to +155 ° C
T.C.R = (R2-R1) × 10 ^ 6/R1 × (T2-T1) (PPM / ℃)
R1: at room temperature (T1) impedance value;
R2: room temperature to +100 ° C (T2) impedance
Short time overload
 ΔR ≤ ± (0.5% of R0 +0.05 Ω)
 JIS5202-5.5
2.5 times the rated voltage for 5 seconds
 
Resistance to soldering heat
 ΔR ≤ ± (0.5% of R0 +0.05 Ω)
 JIS5202-6.4
Solder pot temperature: 350 ° C ± 10 ° C
Dip furnace time: 3 ± 0.5 seconds
 
Weldability
 Solder coverage area of ​​more than 95%
 JIS5202-6.5
 
Temperature cycling
 ΔR ≤ ± (0.5% of R0 +0.05 Ω)
 JIS5202-7.4
-65 ° C → room temperature → 150 ° C → room temperature
5 cycles
 
Moisture load life
 ΔR ≤ ± (2% of R0 +0.1 Ω)
 JIS5202-7.9
40 ± 2 ° C, 90 ~ 95% RH
Increase in the humidity box rated DC voltage test of 1.5 hours, stop 0.5 hours to 1000 hours of continuous testing
 
Temperature Load life ΔR ≤ ± (2% of R0 +0.1 Ω) JIS5202-7.10
70 ° C in the incubator, the rated voltage to test 1.5 hours, stop 0.5 hours to 1000 hours of continuous testing
Intermittently over the load
 ΔR ≤ ± (1% of R0 +0.05 Ω)
 JIS5202-5.8
4 times the rated AC voltage test for one second, stops for 25 seconds, back and forth 10,000 times