Three new models featuring a rated power of 5W in ultra-low resistances of 0.5m?, 1m?, and 1.5m? have been added to the 2512 / 6432-size PMR100 series of metal plate shunt resistors. 
To the 2512-size (0.25inch × 0.12inch) / 6432-size (6.4mm × 3.2mm) ROHM PMR100 metal plate shunt resistors of standard type metal plate shunt resistors intended for motor control and power circuits in automotive, consumer, and industrial equipment applications, ROHM has added three new products with a rated power of 5W in resistance values of 0.5m?, 1.0m?, and 1.5m?.
Growing Demand of Shunt Resistors
Shunt resistors for current sensing are mainly utilized in motor drive circuits in a variety of industries, such as consumer electronics, industrial equipment, and automotive, for battery level detection and power supply overcurrent prevention.
Shunt resistors with high precision and reliability must be used in precise circuit management to achieve the power reductions needed for a variety of applications.
Furthermore, boards are getting denser due to increased application functionality, necessitating smaller, higher power shunt resistors. Ensuring high detection accuracy in situations with high temperatures is crucial, especially in the automobile sector.
These new PMR100 series metal plate shunt resistors use new materials with superior thermal properties and terminal temperature derating to reach a rated power of 5W. For 6432-size flat chip types with protective film, this is the best available.
It is feasible to replace bigger high-power types thanks to the achievement of about 2.5 times higher rated power than ordinary PMR100 2W products and around 1.7 times higher than 3W models.
This leads to improved downsizing in a range of applications. Furthermore, steady functioning even in extremely cold settings is ensured by a guaranteed working temperature range of -65°C to +175°C and a rated terminal temperature of 130°C (for 0.5m? and 1m? products). Its exceptional temperature coefficient of resistance (±75ppm/°C) makes it possible to monitor current with great precision and dependability.
ROHM keeps pushing resistor technology forward. The ROHM PMR100 metal plate shunt resistors can now include compact, high power, high temperature, and high accuracy models in addition to 4W types in the smaller 1210-size (0.12inch × 0.1inch) / 3225-size (3.2mm × 2.5mm) and 2010-size (0.2inch × 0.1inch) / 5025-size (5.0mm × 2.5mm) sizes thanks to ROHM’s continued expansion of the power and resistance ranges.
By enhancing the functionality of its wide range of shunt resistors, ROHM will keep helping applications become smaller and use less energy in the future.
Online Sales Information
Online Distributors: DigiKey, Mouser and Farnell
Pricing: $2.0/unit (samples, excluding tax)
This series is now available in resistances from 1m? (PMR100HZP7FV1L00). Additional resistance values will be added as needed.
Resistance Value Search Page
Users can now search by series or resistance value and purchase samples on product pages. https://www.rohm.com/products/resistors
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