EHR-4
Blue 4-position crimp housing for 2.5mm pitch cable connections
Manufacturer： ['jsp', 'maxconn', 'jst-sales']
series introduction
The **EHR-4 Series** is a high-performance line of precision current sense resistors designed to meet the demanding requirements of modern electronic systems. These resistors are engineered to provide accurate current measurement with low resistance values, making them ideal for applications where power efficiency and thermal stability are critical. The EHR-4 Series is widely recognized for its robust construction, excellent temperature coefficient of resistance (TCR), and low thermal electromotive force (EMF), ensuring reliable performance in a variety of challenging environments.
One of the standout features of the EHR-4 Series is its ultra-low resistance range, typically spanning from 0.5 milliohms to 100 milliohms, which allows for precise current sensing without introducing significant power losses. The resistors are constructed using advanced metal alloy materials, which provide exceptional stability and durability under high current loads. Additionally, the series boasts a low TCR, typically as low as ±50 ppm/°C, ensuring minimal resistance variation over a wide temperature range, from -55°C to +170°C. This makes the EHR-4 Series highly reliable in applications subject to thermal stress or fluctuating operating conditions.
The design of the EHR-4 Series emphasizes compactness and ease of integration, with a surface-mount package that is optimized for high-density PCB layouts. The resistors feature a four-terminal Kelvin connection design, which minimizes measurement errors caused by parasitic resistance and ensures accurate current sensing. This design characteristic is particularly beneficial in high-precision applications such as power management, battery monitoring, and motor control systems.
The EHR-4 Series is well-suited for a wide range of industrial and consumer applications. In the automotive industry, these resistors are commonly used in electric vehicle (EV) battery management systems, onboard chargers, and DC-DC converters, where accurate current measurement is essential for safety and efficiency. In industrial automation, the series is employed in motor drives, inverters, and power supplies, where its low resistance and high power handling capabilities are critical. Additionally, the EHR-4 Series finds applications in renewable energy systems, such as solar inverters and wind turbines, where reliable current sensing is required for optimal energy conversion.
Overall, the EHR-4 Series represents a versatile and dependable solution for current sensing needs across multiple industries. Its combination of precision, thermal stability, and compact design makes it an ideal choice for engineers seeking to enhance the performance and reliability of their electronic systems.
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EHR-4
EHR Series
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