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