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.

Low Resistance Value Chip Resistors

Terminal; Plated Metal

Resistive Body; Alloy Plate

Protective coating; Resin

L

a

120

100

80

60

40

20

0

–55 –40

0

40

80

70 °C

120

160

170 °C

200

Ambient Temperature (°C)

ERJM03

ERJM1W

155 °C

Resistive Body; Alloy Plate

Protective coating; Resin

Terminal; Plated Metal

L

a

Type

Type

(inch size)

Dimensions (mm)

LWT

a

Mass (Weight)

[g/1000 pcs.]

S Type

ERJM1WS

(2512)

6.40

±0.25

3.20

±0.25

0.80

±0.30

1.00

±0.25

70

T Type

ERJM1WT

(2512)

6.40

±0.40

2.10

±0.30

90

Type

(inch size)

Power Rating

at 70 °C (W)

Standard

Resistance (m

Ω)

Resistance

Tolerance (%)

T.C.R.

(

Category

Temperature

Range (°C)

Circuit board of use

ERJM03N

(0603)

0.25

10

F: ±1, J: ±5

±100

–55 to +155

–

ERJM1WS

(2512)

1

3, 4

±350

–55 to +170

You should use the aluminum

substrate when the added

wattage exceeds 0.5 W.

5, 6, 10, 15, 20

±100

ERJM1WT

(2512)

1, 1.5

350±100

2, 3, 4

100±50

Power Derating Curve

For resistors operated in ambient temperatures above

70 °C, power rating shall be derated in accordance

with the figure on the right.

✽ Please contact the factory for other values and the range

Type

(inch size)

Dimensions (mm)

Mass (Weight)

[g/1000 pcs.]

LWT

a

b

ERJM03N

(0603)

1.60

±0.15

0.8

±0.15

0.35

1.7

● ERJM1W

● ERJM03

● ERJM1W

● ERJM03

Aug. 2012

01

15