Current Sensing Resistors, Metal Plate Type
Current Sensing Resistors,
Metal Plate Type
Type: ERJ MS4, MB1
Features
● Ideal for current sensing solution
● Small case size with high power
● Metal plate bonding technology. Excellent long term stability
● Outer Resin with high heat dissipation. Wide temperature range (-65 °C to +170 °C)
● AEC-Q200 qualified
● RoHS compliant
● ISO9001, ISO/TS16949 certified
■ As for Packaging Methods, Soldering Conditions and Safety Precautions,
Please see Data Files
Explanation of Part Numbers
1 2 3 4 5 6 7 8 9 10 11
ER JMS 4SF 2M0
12
U
Product Code
Metal Plate
Chip Resistors
Type Code
Code Inch size Electrode type
S4S 2512 Standard
S4H 2512
Narrow
B1S 1020 Standard
Resistance Tolerance
Code Tolerance
F ±1 %
Resistance Value
Shown by 3 digits or
letters.Decimal point
is expressed by M as
2.0 mΩ=2M0,
10.0 mΩ=10
Code
U
Packaging Methods
Packaging
Embossed Carrier Taping
4 mm pitch, 2,000 pcs.
Embossed Carrier Taping
4 mm pitch, 3,000 pcs.
Part No.
ERJMS4
ERJMB1
Ratings
Part No.
(inch size)
ERJMS4S
(2512)
ERJMS4H
(2512)
ERJMB1S
(1020)
Power Rating
at 70 °C
(W)
3
3
2
2
Resistance
Range
(mΩ)
1, 2, 3, 4
5, 6
7, 8, 9, 10
1, 2, 3, 4, 5
Resistance
Tolerance
(%)
F : ±1
F : ±1
F : ±1
F : ±1
✽ Please contact us when resistors of irregular series are needed.
T.C.R.
(×10–6/°C)
±75
±75
±75
±75
Category
Terminal temp.
Temperature Range upper limit
(°C) (°C)
–65 to +170
130
–65 to +170
–65 to +170
130
100
–65 to +170
130
Power Derating Curve
If the terminal temperature of the resistor is more than
terminal temperature upper limit value of the rated
table, please reduce the rated power according to the
Power Derating Curve shown in the figure on the right.
<Supplemented>
In the case of the temperature measurement of the terminal portion of
the resistor, Please perform under the following conditions.
1) Terminal temperature measurement, please apply the temperature of
the higher of either the left or right electrode upper surface of the
resistor.
2) Please measure the temperature of the resistor in the land pattern
printed of circuit board and plan to use by real conditions.
120
100 −65 °C
80
60
40
20
0
–80 –40
100 °C 130 °C
ERJMS4H
(7 to 10 mΩ)
0 40 80 120
Terminal Temperature (°C)
170 °C
160 200
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
05 Apr. 2019
