Low Ohmic Chip Resistors for Current Detection UCR Series

Overview | Features | Applications | Lineup

Low Ohmic Chip Resistors for Current Detection: UCR Series Not susceptible to changes in ambient temperature, resulting in stable resistances in the lower range (11m to 100m). The industry's highest rated current 1/4W in the 1608 size 1/3W in the 2012 size

Overview

ROHM offers a lineup of low-ohmic thick-film resistors: 11m to 910m.
The rear-mount structure reduces resistance variations during mounting.
In addition, the proprietary design significantly improves heat dissipation characteristics, resulting in superior power ratings (i.e. 1/4W in the 1608 size, 1/3W in the 2012 size) compared with conventional short-terminal products.
 < External Dimensions >
External Dimensions
Part No. size L W t
☆UCR006 0603 0.64 0.34 0.28
UCR01 1005 1.0 0.55 0.37
UCR03 1608 1.6 0.87 0.5
UCR10 2012 2.0 1.25 0.55
UCR18 3216 3.2 1.6 0.55
Part number with ☆ are under development.
(Units : mm)

Features

  1. Chip Resistors for Current Detection (from 11mΩ)
  2. Rear-mount configuration minimizes resistance variations during mounting
  3. Highest rated power in the industry
    1/4W UCR03 (ROHM Conventional MCR03: 1/10W)
    1/3W UCR10 (ROHM Conventional MCR10: 1/4W)
  4. Superior resistance-temperature coefficient
Negligible resistance change at both high and low temperatures for stable operation

Applications

Current detection in PCs, mobile phones, HDDs, portable audio, power supplies, and motors, battery charge detection circuits, and the like.

Lineup

Part No. Size Rated Power
(W)
Resistance
Tolerance
Resistance-Temperature
Coefficient (ppm/℃)
Resistance
Range
(Ω)
Operating Temperature Range
(℃)
UCR006YVPJ 0603 1/10
(0.1)
J (± 5%) 0~300 0.1~0.91(E24Series) -55~ +155
UCR006YVPF F (± 5%)
UCR01MVPJ 1005 1/8
(0.125)
J (± 5%) 0~300
0~250
0~200
0.068~0.091(E24Series)
0.1~0.2(E24Series)
0.22~0.91(E24Series)
UCR01MVPF F (± 1%)
UCR03EWPJ 1608 1/4
(0.25)
J (± 5%) 0~250
0~200
0~150
0.020~0.047 (E24Series)
0.051~0.091 (E24Series)
0.1~0.2 (E24Series)
UCR03EVPJ
UCR03EWPF F (± 1%)
UCR03EVPF
UCR03EVPJ 1/5
(0.2)
J (± 5%) 0~150 0.22~0.91 (E24Series)
UCR03EVPF F (± 1%)
UCR10EVHJ 2012 1/3
(0.33)
J (± 5%) 250±200
0~250
0~150
0.011~0.018 (E24Series)
0.020~0.047 (E24Series)
0.051~0.1 (E24Series)
UCR10EVHF F (± 1%) 0~250
0~150
0.020~0.047 (E24Series)
0.051~0.1 (E24Series)
UCR18EVHJ 3216 1/2
(0.5)
J (± 5%) 0~350
0~200
0~150
0.011~0.018 (E24Series)
0.020~0.039 (E24Series)
0.043~0.1 (E24Series)
UCR18EVHF F (± 1%)

Part number with ☆ are under development.

ROHM utilizes the most advanced, original technologies to develop products that meet market needs.

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