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UNLESS OTHERWISE SPECIFIED

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ANGLES

± HOLE DIA. ±

SCALE ﹕

X

UNIT ﹕ X

APPROVED

BY ﹕

DRAWN

BY ﹕connie 4/3/13

DESIGNED

BY ﹕

CHECKED

BY ﹕

THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF Delta Electronics, Inc.

AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE

MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION

台達電子工業股份有限公司

台達電子工業股份有限公司

台達電子工業股份有限公司

台達電子工業股份有限公司

Delta Electronics, Inc.

The Engineering Spec. For 3/4W 2010

Low Resistance Chip Resistor

3-2 Marking

Resistance value is marked on the top surface.

Ex.)

5m

Ω → R005

47m

Ω → R047

4. Ratings

4-1 Specification

Power Ratings*

3/4W

Resistance Value

4 ~ 50m

Ω

Temperature Coefficient of Resistance

(

≤10mΩ) 100ppm/℃

(>10m

Ω) 50ppm/℃

Resistance Tolerance

±1% , ± 2% , ±5%

Insulation Resistance

Over 100M

Ω

Maximum Working Voltage (V)

( P*R)

1/2

Note * :

Power ratings is based on continuous full load operation at rated ambient temperature of

70℃. For resistors operated at ambient temperature in excess of 70℃, the maximum

load shall be derated in accordance with the following curve.

Figure 2.：Power Temperature Derating Curve

4-2 Rated Voltage

The rated voltage shall be determined by the following expression.

R

P

V

×

=

Where V：Rated voltage (V)

R：Nominal resistance value (

Ω)

P：Rated dissipation (W)

4-3 Operation and Storage Temperature Range

-55℃ to

+125℃

0

70

100

125

-55

AMBIENT TEMPERATURE(

)

℃