ESR18

Resistors

Rev.F

1/4

Anti-surge Chip Resistors

ESR18 (1206 size: 1 /3W)

Features

1) Power rating of 1/3W (MCR18 1/4W)

2) Superior anti surge to MCR series.

3) Highly reliable chip resistor Ruthenium oxide dielectric offers superior resistance to the elements.

4) ROHM resistors have approved ISO9001- / ISO/TS 16949- certification.

Design and specifications are subject to change without notice. Carefully check the specification sheet before using or

ordering it.

Ratings

0.33W (1 / 3W)

−55

200V

at 70

Item

Conditions

Specifications

Rated power

Rated voltage

Operating temperature

Nominal resistance

See Table 1.

Limiting element voltage

Power must be derated according to the power derating curve in

Figure 1 when ambient temperature exceeds 70

The voltage rating is calculated by the following equation.

If the value obtained exceeds the limiting element voltage,

the voltage rating is equal to the maximum operating voltage.

E: Rated voltage (V)

P: Rated power (W)

R: Nominal resistance (

Ω)

E

= P×R

0

20

40

60

80

100

−55

0

70

100

155

AMBIENT TEMPERAT

URE (

°C)

Fig.1