ROHM UCR01MVPJS Technical data

Table 1

Fixed Thick Film Low Ohmic Chip Resistors For Current Detection

UCR01 (1005 size : 1 / 8W)

Features

1) Superior rated power.

2) Stable, low resistance guaranteed regardless of the surrounding environment.

3) Thick film resistive elements were used to create this lineup of ultra-low resistance products ranging from 68m to 910m.

4) Chip resistors ideal for current detection.

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

Ratings

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

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.

0.125W (1 / 8W)
at 70°C

Rated voltage

Nominal resistance
Operating temperature

The voltage rating is calculated by the following equation.

E= P×R

See Table 1.

E: Rated voltage (V)
P: Rated power (W)
R: Nominal resistance (Ω)

−55°

C to + 155°C

Resistance range

(Ω)

0.068 to 0.091 (E24)

0.1 to 0.2 (E24)

0.22 to 0.91 (E24)

Before using components in circuits where they will be exposed to transients such as pulse loads (short–duration, high– level loads), 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 state voltage that
is greater than its rated voltage.

Resistance tolerance Special specification

F (±1%)
J (±5%)

S

L

Resistance temperature

coefficient (ppm/°C)

0 to 300
0 to 250
0 to 200

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2010.10 - Rev.B

Data Sheet UCR01



Characteristics

Item Test conditions (JIS C 5201-1)

Resistance

Variation of resistance
with temperature

Overload

Solderability

Resistance to
soldering heat

Rapid change of
temperature

Guaranteed value

Resistor type

JIS C 5201-1 4.5
Measuring method : Measure under termination

F : ±1%
J : ±5%

See Table.1

± (2.0%+0.005Ω)

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

± (1.0%+0.005Ω)

No remarkable abnormality on the appearance.

± (1.0%+0.005Ω)

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

JIS C 5201-1 4.13
Rated voltage (current) × 2.5, 5s. 25

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

Under termination

°C

to +125°C 100cyc 0.5h

Terminal

°C

°C

°C

Damp heat, steady state

Endurance at 70°C

Endurance

Resistance to solvent

Bend strength of
the end face plating

± (1.0%+0.005Ω)

± (5.0%+0.005Ω)

± (2.0%+0.005Ω)

± (1.0%+0.005Ω)

Without open.

JIS C 5201-1 4.24
60

°C, 95%RH

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

125
Test time : 1,000h to 1,048h

JIS C 5201-1 4.29

°C, 60

s.

25
Solvent : 2-propanol

JIS C 5201-1 4.33

°C

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2010 ROHM Co., Ltd. All rights reserved.

2010.10 - Rev.B