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.

Carbon Film Resistors

–40 –20

0

20 40 60 80 100 120 140 160 180

Ambient Temperature (

°C)

0

20

40

60

80

100

120

–60

70

°C

–55

°C

155

°C

(1) Rated Voltage= Power Rating Resistance Value or Limiting Element Voltage (max. RCWV), whichever is less.

(RCWV: Rated Continuous working Voltage).

(2) Overload (Short-time Overload) Test Voltage (SOTV) shall be determined from SOTV=2.5 Power Rating or max. Overload Voltage listed above whichever less.

(3) Intermittent Overload Test Voltage (IOTV) shall be determined from IOTV=4 Power Rating (IOTV=3 Power Rating for ERDS2 type) or max. Intermittent Overload Voltage

listed above whichever less.

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.

Characteristics

Specifications

Test Methods

T.C.R.

Resistance Value range

Temperature

coefficient

10

ERDS2

ERDS1, 25

4.3

or less

4.3

or less

±350

4.7

to 62 k

4.7

to 51 k

–150 to –350

68 k

to 200 k

56 k

to 430 k

–150 to –500

220 k

to 510 k

470 k

to 910 k

–150 to –700

560 k

or over

1 M

or over

–150 to –1000

Resistance value at

room temperature

and room tempera-

ture +100 °C

Type

Power

Rating

at 70 °C

(W)

Limiting

Element

Voltage

(Maximum

RCWV)

(1)

(V)

Maximum

Overload

Voltage

(2)

(V)

Maximum

Intermittent

Overload

Voltage

(3)

(V)

Dielectric

Withstanding

Voltage

(VAC)

Standard

Resistance

Value

Resistance

Tolerance

(%)

Resistance

Range

( )

min.

max.

ERDS1T

0.5

300

600

750

500

E24

±5(J)

1

3.3 M

ERDS1F

(Flame Retardant)

350

1 M

ERDS2T

0.25

250

500

750

300

E24

±5(J)

1

2.2 M

ERDS2F

(Flame Retardant)

200

1 M

ERDS2T0

Jumper

Rated Current : 2 A,

Resistance : < 50 m

ERD25T

0.25

300

600

750

500

E24

±5(J)

1

3.3 M

ERD25F

(Flame Retardant)

350

1 M

ERD25T0

Jumper

Rated Current : 2 A,

Resistance : < 50 m

Feb. 2006

 Discontinued