SPECIFICATION FOR APPROVAL

DOCUMENT

: SMD40000NH

REVISION

: A0

PAGE

: 2 OF 6

3-2 Marking

Resistance value is marked on the top surface.

Ex.)

2m

Ω → R002

4. Ratings

4-1 Specification

Power Ratings*

1/2W

Resistance Value

1 ~ 3m

Ω

Temperature Coefficient of Resistance

±275ppm/℃

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.

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

+170℃

-55

100

70

0

170

AMBIENT TEMPERATURE(℃)

Figure 2.：Power Temperature Derating Curve