Industry's Highest* Rated Power! ROHM Unveils the UCR10C Series of Sintered Metal Shunt Resistors

Executive Summary

• ROHM announced the new “UCR10C Series” shunt resistors, delivering the industry’s highest rated power (1.0 W and 1.25 W) for 2012‑size components (10 mΩ to 100 mΩ).
• The copper‑based resistive element on an alumina substrate provides low temperature coefficient of resistance (0–+60 ppm/°C) and durability comparable to metal‑plate types, enabling miniaturization and reduced component count in automotive and industrial applications.
• The series is fully lead‑free and now available through major online distributors; development of a higher‑power 3216‑size “UCR18C Series” (2 W) is already underway.

Key Details

• Product: UCR10C Series shunt resistors (10 mΩ–100 mΩ, 2012‑size).
• Rated Power: 1.0 W and 1.25 W – roughly double the power of equivalent‑sized thick‑film or metal‑plate products.
• Construction: Copper‑based resistive element sintered onto alumina substrate; optimized heat‑dissipation structure.
• Performance: Low TCR (0 to +60 ppm/°C); temperature‑cycle reliability tested from –55 °C to +155 °C for 1,000 cycles.
• Environmental: Fully lead‑free, meeting RoHS standards even in exempted regions.
• Availability: Immediately purchasable online via DigiKey, Mouser, Farnell and other distributors.
• Future Development: Commenced work on the “UCR18C Series” (3216‑size, 2 W) to extend high‑power, high‑precision shunt resistor offerings.
• Applications Highlighted: Current sensing in automotive, industrial equipment, and consumer electronics.

Notable Quotes

(No direct quotes provided in the release.)