MA Series Metal Alloy Low-Resistance
Resistor Product Specifications
Document No.
S-10-12-05-11
Released Date
2019/03/07
Page No.
1/10
█
Metal Alloy Low Resistance
Chip Resistor — MA Series
■
Application
■
Features
— Entertainment product
— Power supply
— Measuring instrument
— Industrial product
— Battery management system
— Low Resistance / Low TCR
— Excellent long term stability
— RoHs compliant and halogen free.
— Lead free.
— High precision current sensing
and
voltage division.
— ACE-Q200 qualified available.
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Parts Number Explanation
■
Example:
MA
Product
Type
2512
Size
(Inch)
1206
2512
2725
2728
4527
20
Rated
Power
07=0.75W
10=1.00W
20=2.00W
30=3.00W
40=4.00W
50=5.00W
F
R001
M
Z
Tolerance
D：±0.5%
F：±1%
G：±2%
J：±5%
Resistance
0m20=0.2mR
2m50=2.5mR
R000=0mR
R005=5.0mR
R100=100mR
R500=500mR
Material
S：MnCuSn
M：MnCu
F：FeCrAl
C：Cu
Optional
A: For
Automotive
Electronics
MA Series Metal Alloy Low-Resistance
Resistor Product Specifications
Document No.
S-10-12-05-11
Released Date
2019/03/07
Page No.
2/10
■
Standard Electrical Specifications
Rating
Power
at 70℃
0.75W
T.C.R.
(ppm/℃)
Max.
Rating
Current
3.83A
Max.
Overload
Current
7.66A
Resistance Range (mΩ)
0.5% (D)
1.0% (F)
2.0% (G)
5.0% (J)
51~100
Material
Operating
Temperature
Range (℃)
TYPE
51~100
R051~R100：FeCrAl
R001：MnCuSn
MA1206
1W
31.62A
63.25A
7~50
1~50
R002~R007：MnCu
R008~R050：FeCrAl
1W
MA2512
2W
3W
≦±50
R00025：MnCuSn
MA2725
4W
126.49A
252.98A
---
0.25~3
R0005~R0025：MnCu
44.72A
63.25A
77.46A
100.00A
141.42A
154.91A
7~450
7~450
7~100
0.5~450
0.5~450
0.5~100
R0005：MnCuSn
R001~R006：MnCu
R007~R450：FeCrAl
- 55 ~ + 170
R003：FeCrAl
MA2728
4W
2W
MA4527
3W
5W
31.62A
63.25A
77.46A
100A
54.77A
109.54A
134.16A
173.20A
7~450
7~100
7~60
7~500
4~450
0.5~100
0.5~60
0.5~500
R004~R450：FeCrAl
R0005：MnCuSn
R001~R005：MnCu
R006~R500：FeCrAl
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Jumper Specifications
Type
Rating Power
at 70℃
1W
2W
Max. Rating
Current
70.7A
≦0.2
MA2512
100A
Jumper：Cu
-55~+170°C
Resistance
(mΩ)
Material
Operating
Temperature
Range (℃)
MA1206
MA Series Metal Alloy Low-Resistance
Resistor Product Specifications
Document No.
S-10-12-05-11
Released Date
2019/03/07
Page No.
5/10
█
Performance Characteristics
Power Derating Curve
The Operating Temperature Range: -55°C ~+170°C.
For resistors operated in ambient temperatures above 70°C, power rating must be derating in accordance with the
curve below
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Rating Current
The following equation may be used to determine the DC (Direct Current) or AC (Alternating Current) (RMS, root
mean square value) of normal rated power. However, if the result value exceeds the highest current of regulated
standards (paragraph 5), the highest normal rated power is to be used
I = Rating
current
(A)
P= Rating Power (W)
R= Resistance(Ω)
■
Marking Format:
● All the other products marking are 4 digits.
● “R” designates the decimal location in ohms
e.g. 1mΩ the product marking is R001.
25mΩ the product marking is R025.
100mΩ the product marking is R100.
● “m” designates the decimal location in milli-ohms
e.g. 0.25mΩ the product marking is 0m25.
0.5mΩ the product marking is 0m50.
5.5mΩ the product marking is 5m50.
25.5mΩ the product marking is 25m5.
● 0Ω product marking is 0R
● The criteria to distinguishing the mark on the surface of products are that characters can be identified.
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