Metal Alloy Shunt Resistors

PROSEMI high-power shunt resistor series offers package sizes ranging from 2512 to 8436, with a rated power range of 2W to 36W, resistance values from 0.025mΩ to 5mΩ, and a temperature coefficient range of 15~50ppm. This series is specifically designed for high-performance applications and is an ideal choice for industries that require reliable power handling, including automotive, industrial, and power management sectors.

We provide a full range of series and resistance products to meet various customer needs, ensuring perfect compatibility with your specific applications. With fast delivery times (mass production in 8 weeks) and a rich sample library, we offer flexible testing options to help you easily and quickly evaluate our products.

Our DC shunt resistors are widely used in the automotive industry as alternative materials, trusted by leading companies such as BYD, UAES, and GAC GROUP. Whether you need standard components or customized solutions, we are committed to providing high-quality, reliable resistors that meet your stringent requirements.

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Metal Alloy Shunt Resistors

Related Products

We offer a wide range of categorized products, each of which has been carefully selected and designed to meet the individual needs of diverse consumers.
Model Package Series TCR (ppm/℃) Resistance Value (mΩ) Power Rating (W or A) Tolerance(%) Automotive PDF
PSRP12 1216 PSRP12 ±50 0.5、1 3~5 0.5、1、2、5 No
APSRP12 1216 APSRP12 ±50 0.5、1 3~5 0.5、1、2、5 Yes
PSRP25 2512 PSRP25 ±75~175 0.2、0.3、0.5、1~5 3~6 0.5、1、2、5 No
APSRP25 2512 APSRP25 ±75~175 0.2、0.3、0.5、1~5 3~6 0.5、1、2、5 Yes
PSRP27 2726 PSRP27 ±50~75 0.2、0.3、0.5、0.7、1~5 3~12 0.5、1、2、5 No
APSRP27 2726 APSRP27 ±50~75 0.2~5 3~12 0.5、1、2、5 Yes
PSRP39 3920 PSRP39 ±50~200 0.2、0.3、0.5、0.7、1~5 4~12 0.5、1、2、5 No
APSRP39 3921 APSRP39 ±50~200 0.2、0.3、0.5、0.7、1~5 4~12 0.5、1、2、5 Yes
PSRP40 4026 PSRP40 ±50~75 0.2、0.3、0.5、0.7、1~5 3~12 0.5、1、2、5 No
APSRP40 4026 APSRP40 ±50~75 0.2、0.3、0.5、0.7、1~5 3~12 0.5、1、2、5 Yes
PSRP59 5930 PSRP59 ±50~200 0 1、0.2、0.3、0.5、1~3 7~15 0.5、1、2、5 No
APSRP59 5930 APSRP59 ±50~200 0.1、0.2、0.3、0.5、1、1.5、2 7~15 0.5、1、2、5 Yes
PSS-1625 1625 PSS-1625 ±20 0.1 200A 1 NO
PSS-2025 2025 PSS ±25 0.1~0.3 120~150A 1 No
PSS-4320 4320 PSS-4320 ±40~240 1~25 5 1、2、5 NO
PSS-4415 4415 PSS-4415 ≤50 0.25 300A 1 NO
PHS-5520 5520 PHS-5520 ±50 0.1 25 5 NO
PHS-5825 5825 PHS-5825 ±100 0.5 150A 5 NO

What Advantages Do We Metal Alloy Shunt Resistors

EBW And Sampling Column Design

EBW And Sampling Column Design

The design of the sampling column achieves precise current sampling by carefully planning the structure and position to ensure measurement accuracy. Electromagnetic interference is reduced by using shielding structures or materials, which enhances signal quality. Standardized interfaces are used for easy installation and connection, improving system integration and reliability. Heat dissipation is effectively managed through the use of thermal conductive materials or special heat dissipation structures, thus improving the long-term stability and service life of the shunt.

High Reliability Overload Capacity And Precision

High Reliability Overload Capacity And Precision

The precision alloy current sensing shunt resistors achieve stable operation under complex conditions with high reliability, reducing maintenance costs and increasing user trust. With their high overload capacity, they can withstand large current surges, enhancing system flexibility and extending equipment life. Thanks to their high precision, they enable accurate measurement and control, meeting stringent industry standards. As a result, they demonstrate significant advantages in ensuring efficient and stable system operation, reducing overall costs, and enhancing market competitiveness.

Wide Temperature Range & Non-Inductive Design

Wide Temperature Range & Non-Inductive Design

The precision alloy current shunt resistors feature a wide temperature range, ensuring stable performance in complex environments such as high and low temperatures. This not only reduces the limitations of application scenarios but also minimizes measurement errors and extends service life. Additionally, the non-inductive design, with inductance less than 3 nanohenries, effectively reduces electromagnetic interference, improves electronic system compatibility, and ensures measurement accuracy in high-frequency circuits, thereby expanding the scope of applications.

Low Thermoelectric Potential (< 0.5μV/°C)

Low Thermoelectric Potential (< 0.5μV/°C)

The precision metal alloy current sense shunt resistors have a low thermoelectric potential (< 0.5μV/°C), which not only significantly reduces measurement errors caused by temperature changes in fields such as scientific research experiments and high-end electronic equipment manufacturing, ensuring measurement accuracy, but also provides stable signal output during temperature fluctuations or device heating, reducing the risk of system failures. At the same time, their low sensitivity to temperature changes expands the range of applications and enhances the adaptability and versatility of the equipment in various environments.

Electrode Surface Treatment Optional

Electrode Surface Treatment Optional

For example: Electrode Fully Nickel-Tin Plated. The precision alloy current sensing resistors (shunts) feature electrodes fully nickel-tin plated, which reduces contact resistance and minimizes energy loss, enhancing overall performance. The dense protective coating improves corrosion resistance and extends service life. With excellent solderability, it ensures welding quality and improves the reliability of circuit connections. It also enhances the appearance of the electrode, elevating the product's quality perception.

With NTC Temperature Sensors

With NTC Temperature Sensors

The precision alloy current sensing DC shunt resistors use NTC temperature sensors to monitor temperature in real time. This not only corrects measurement results and reduces errors caused by temperature fluctuations to improve measurement accuracy, providing reliable data for high-precision applications such as scientific instruments, but also enhances output stability through compensation mechanisms, reducing the risk of system failures. Additionally, it expands the environmental adaptability, broadens application scenarios, and optimizes the collaborative effect with other components, thereby improving overall system efficiency and competitiveness.

Technology Applied

Electron Beam Welding (EBW) Process

Electron Beam Welding (EBW) Process

High welding precision, allowing accurate positioning and control of weld width to ensure resistor performance; Excellent weld quality, with rapid cooling forming fine grain structures, while the vacuum environment minimizes welding defects; Small heat-affected zone, helping preserve the properties of precision alloy materials and reducing the risk of resistance value changes; Wide range of weldable materials, suitable for various refractory and high-alloy materials, expanding material selection options; High level of automation, enabling integration with control systems for precise automated operations, ensuring stable quality, improving production efficiency, and meeting the demands of large-scale manufacturing.

Yellow Light Etching Process

Yellow Light Etching Process

Ultra-high precision, enabling the fabrication of fine structures to meet high-accuracy requirements; Excellent consistency, which improves yield rates in mass production and enhances circuit stability; Strong capability for complex structure fabrication, making it easier to meet the needs of special applications and innovation; Wide material compatibility, adaptable to various alloy materials to maximize performance advantages; Minimal impact on material properties, reducing structural and performance damage during processing to ensure long-term reliability of the resistor.

Precision Stamping And Plastic Encapsulation Process

Precision Stamping And Plastic Encapsulation Process

In terms of precision and performance, high-precision dimensional control is achieved to support high-density circuit boards and enhance circuit stability. Mechanical properties are strengthened to ensure suitability for harsh environments. In manufacturing and protection, production efficiency is improved while reducing costs. The resistors are endowed with excellent electrical insulation, good heat dissipation, and strong environmental adaptability, offering resistance to moisture, dust, and corrosion—effectively extending service life.

Product Application

  • Inverter
  • Power Module
  • Communication System
  • Current Sampling
  • Drive Technology
  • Power Electronics
  • Home Appliance Controller
  • Battery Internal Resistance Detection Equipment
  • Battery Formation and Capacity Testing System
  • Automated Control Power Supply
  • Instrument Power Supply and Power Testing System
  • Power Current Sensor for Hybrid Power Applications
  • Other Power Systems Requiring Precise Sampling
  • High Current Applications in Automotive and New Energy Electric Vehicle Markets
Application
About Us

PROSEMI TECHNOLOGY

Prosemi Technology, as a leading company in the field of precision current sensing components, is dedicated to providing customers with high-performance and high-reliability solutions. Our precision alloy current-sensing resistors, including SMD chip resistors and shunt resistors, are designed for a variety of applications, helping your products achieve accurate current detection and efficient energy management.

High-Quality Products

High-Quality Products

We provide a wide range of outstanding electronic components that are integral to countless applications. Every product is a result of state-of-the-art technology combined with stringent quality control processes to ensure reliability and performance.
Competitive Advantages

Competitive Advantages

Enjoy exclusive access to competitively priced products along with ongoing support and training from our dedicated team. We help you stay ahead by keeping you updated with the latest trends and technology advancements within the industry.
Prompt and Reliable Delivery

Prompt and Reliable Delivery

With our streamlined supply chain and logistics expertise, you receive all products on time, maintaining the highest level of customer satisfaction and trust.

Relevant Cases

PROSEMI electronic components are widely applied across multiple fields, ensuring the safe and efficient operation of equipment, and gaining trust within the industry.
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