Shunt Resistors

Resistors in current detection applications are typically used to detect overcurrent conditions or remaining battery level. And although current sense resistors have been widely adopted in the automotive and industrial sectors, the recent trend towards greater sophistication and computerization has increased current requirements, leading to a need for high power components.

This includes a demand for high accuracy resistors with superior temperature coefficient of resistance (TCR) for stable operation in extreme temperature environments and that feature ultra-low resistance values in order to minimize power consumption.

In response, ROHM utilized high quality resistor technology cultivated for the low-power sector to develop a new lineup of high power low-ohmic shunt resistors. In addition, high-yield precision welding technology made it possible to guarantee high rated power in the 5W class, while a high-performance alloy was adopted in the resistive metal for superior TCR in the low-ohmic region.

This ensures sufficient margin even in applications with stringent temperature requirements, such as automotive systems and industrial equipment, while lightening design load.

Features:

－ Exclusive precision welding technology utilized for improved rated power (5W)

－ Superior temperature coefficient of resistance, even in the ultra-low-ohmic region