ROHM ESR25JZPJ Technical data

ESR25

Resistors

Anti-surge thick film chip resistor

ESR25 (1210 size : 1 / 2W)

zFeatu res

1) Power rating of 1 /2W (MCR25 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 ISO–9001, ISO/TS 16949 certification.
Design and specifications are subject to change without notice. Carefully check the specification sheet before using or
ordering it.

5) This product is in compliance with the RoHS directive.

zApplications

Automotive, LCD Monitor, projector , power supply , charger, inverter and so on.

zRatings

Item Conditions Specifications

Rated power

Power must be derated according to the power derating curve in
Figure 1 when ambient temperature exceeds 70°

100

80

60

40

POWER LOAD (%)

20

0

−55 0 70 100 155
AMBIENT TEMPERATURE (°C)

Fig.1

C.

0.5W (1/2W)
at 70°C

Rated voltage

Nominal resistance
Operating temperature

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)

E= P×R

See Table 1.

P: Rated power (W)
R: Nominal resistance (Ω)

Limiting element voltage 200V

C to +155°C

−55°

Rev.A 1/4

ESR25

Resistors

Table 1
Resistance tolerance

D(±0.5%)
F (±1%)
J (±5%)

Resistance range

10 ≤ R ≤ 1M

(Ω)

(E24)
(E24)
(E24)

Resistance temperature coefficient

(ppm/°C)

±100
±1001 ≤ R ≤ 10M
±2001 ≤ R ≤ 10M

zBefore using components in circuits w here they will be exposed to transients such as pulse loads (short–duration, high– level l oads), be certain to evaluate the
component in the mounted state. In addition, the reliability and performance of this component cannot be guaranteed if it is used with a steady st ate voltage that
is greater than its rated voltage.

z

Characteristics

Resistance

Variation of resistance
with temperature

Overload

Item Test conditions (JIS C 5201-1)

Guaranteed value

Resistor type

J : ±5%
F : ±1%
D : ±0.5%

See Table.1

± (2.0%+0.1Ω)

JIS C 5201-1 4.5

JIS C 5201-1 4.8
Measurement : −55 / +25 / +125°C

JIS C 5201-1 4.13
Rated voltage (current) ×2.5, 2s.
Maximum overload voltage : 400V

JIS C 5201-1 4.17
Rosin·Ethanol (25%WT)
Soldering condition : 235±5
Duration of immersion : 2.0±0.5s.

JIS C 5201-1 4.18
Soldering condition : 260±5
Duration of immersion : 10±1s.

JIS C 5201-1 4.19
Test temp. : −55

JIS C 5201-1 4.24

°C, 93%RH

40
Test time : 1,000h to 1,048h

JIS C 5201-1 4.25.1
Rated voltage (current), 70

1.5h : ON − 0.5h : OFF
Test time : 1,000h to 1,048h

JIS C 5201-1 4.25.3

°C

155
Test time : 1,000h to 1,048h

JIS C 5201-1 4.29
23±5

°C

, Immersion cleaning, 5±0.5min.

Solvent : 2-propanol
JIS C 5201-1 4.33

EIAJ ED-4701 1300 Test method 304
Voltage : 3kv
R : 1.5kΩ
C : 100pF
Apply cycle : 1 time

°C to

°C

°C

+125°C 5cyc

°C

Solderability

Resistance to
soldering heat

Rapid change of
temperature

Damp heat, steady state

Endurance at 70°C

Endurance

Resistance to solvent

Bend strength of
the end face plating

Static electric
characteristics

A new uniform coating of minimum of
95% of the surface being immersed
and no soldering damage.

± (1.0%+0.05Ω)

No remarkable abnormality on the appearance.

± (1.0%+0.05Ω)

± (3.0%+0.1Ω)

± (3.0%+0.1Ω)

± (3.0%+0.1Ω)

± (1.0%+0.05Ω)

± (1.0%+0.05Ω)

Without mechanical damage such as breaks.

± (5.0%+0.05Ω)

Rev.A 2/4