Maximum Measurement Accuracy with Minimal Temperature Drift

The PCSR2512 series from RESI provides design engineers with a high-precision current sense resistor specifically developed for demanding applications. By combining advanced alloy technology, electron beam welding, and precision plastic molding, the series delivers exceptional measurement accuracy, outstanding long-term stability, and high reliability.

With tolerances as low as ±0.1% and a temperature coefficient (TCR) of only ±10 ppm/°C, the PCSR2512 is ideally suited for highly accurate current measurement, even under changing environmental conditions.

Designed for Modern Power Electronics

Accurate current measurement is becoming increasingly important in a wide range of applications. The PCSR2512 helps engineers optimize system efficiency, precisely monitor power losses, and implement highly reliable control circuits.

Typical Applications

• Precision power supplies
• Measurement and test equipment
• Semiconductor test systems
• Lithium-ion battery formation and cell grading
• Energy storage systems
• Medical equipment
• Automotive electronics
• AI servers and high-performance computing

Key Features

• 2512 package size
• Resistance values from 5 mΩ to 100 mΩ
• Tolerance up to ±0.1%
• Temperature coefficient down to ±10 / 15 ppm/°C
• Power rating up to 2 W
• Continuous current up to 20 A (depending on resistance value)
• Operating temperature range from −55 °C to +170 °C
• Plastic-encapsulated metal alloy current sense resistor
• Outstanding long-term stability achieved through electron beam welding technology

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High Reliability for Industrial and Automotive Applications

The PCSR2512 series has been developed for applications requiring the highest measurement accuracy over many years of operation. The combination of a proprietary resistance alloy, a tightly controlled manufacturing process, and precision electron beam welding minimizes thermal EMF effects while ensuring exceptionally low long-term drift.

In addition, the datasheet includes comprehensive reliability test results based on automotive and industrial qualification standards.

Engineering Support

Not every current sensing application has the same requirements regarding accuracy, power dissipation, or package size. Our engineering specialists are happy to assist you in selecting the optimum current sense resistor and provide support with:

• Selection of the appropriate resistance value
• Power handling and thermal management
• PCB layout optimization for Kelvin sensing
• Alternative solutions for space or cost optimization

Planning a new current sensing design or looking to optimize an existing solution?

Our product specialists will be pleased to help you select the ideal RESI current sense resistor for your application.