GMR and PSR Series Shunt Resistors | ROHM

  

ROHM’s GMR and PSR Series Shunt Resistors 


Provides high accuracy current detection for high power applications in the automotive, industrial, and consumer sectors


ROHM developed the PSR and GMR series featuring superior thermal characteristics to deliver high power capability in a compact size.

The PSR series features a resistance range of 0.1mΩ- 3.0mΩ and high-rated power of 3W and above. Leveraging original precision welding technology allows ROHM to succeed in achieving high power in a small size - considered in the past to be extremely difficult. In addition, adopting a high-performance metal alloy as the resistive element ensures superior TCR, even in the low resistance region.

GMR320
The GMR series covers resistances from 5mΩ to 220mΩ - much higher than the PSR series - to meet the needs for a wider range of applications. At the same time, combining a revised electrode structure with optimized element design improves heat dissipation to the substrate. This new series is also robust against overcurrent loads and maintains stable current detection accuracy even when unexpected loads exceeding the rated power are applied, contributing to improved set reliability.


Watch this video to learn more about these two new high-performance series...


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GMR320
GMR320
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Optical Sensors

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ROHM proposes laser diodes that support a wide range of needs in the consumer, industrial, and automotive markets, including high power metal CAN package types that provide high accuracy long range sensing with narrow emission width ideal for robot vacuums and AGVs (Automated Guided Vehicles). Also offered is a new surface mount VCSEL solution that allows for short distance wide range sensing and contributes to the miniaturization of LiDAR/ToF ranging modules by adopting a proprietary structure to achieve a single lobe narrow beam point, making it ideal for facial recognition, industrial robots and driver monitoring systems.


ROHM's optical sensors include high sensitivity, high-reliability phototransistors, infrared light-emitting diodes, transmission type photo interrupters, and reflective type photo interrupters.
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With the unprecedented need for contactless sensing due to the global pandemic, optical sensors have been utilized in sanitizer dispensers at long-term healthcare facilities to ensure health and safety compliance.

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In industrial and commercial applications, optical sensors are also being used for distance and temperature sensing and automation in Industry 4.0 applications. For example, optical sensors can detect liquid levels in process engineering facilities, such as petroleum levels in tank farms and hydrocarbon refineries, by integrating an infrared LED, light transistor, and a transparent prism tip.

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Optical sensors are also being used for ambient light sensing in consumer electronics such as smartphones, with advantages such as extending battery life and optimizing screen brightness to match the amount of lighting in the environment.

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Compact Infrared LED and phototransistor.


Focusing on the development of products with higher output and further miniaturization for sensor applications than conventional products.



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Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo.