TA-I

Thick Film High Power Chip Resistors

(RMH20 series standard)

Halogen-Free

Document No. TRMH-200S001C

Issued date

2014/08/19

page

3 / 9

TA-I TECHNOLOGY CO., LTD

5.1 Derating Curve :

For resistors operated at ambient temperature over 70℃ , power rating shall be derated in

accordance with figure 1.

P Max

Ambient Temp.(℃)

Figure 1

5.2 Rated Voltage:

The rated voltage is calculated by the following formula:

E =

P * R

E=Rated Voltage(V)

P=Rated Power(W)

R=Resistance Value(Ω)

E.G. : What is RMH20JE101 the rated voltage ?

RMH20JE101 P:1.0W ; R:101 = 100Ω

E =

1.0(W) * 100(Ω)

= 10 (V)

Power ratio(%)