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Last Updated: Apr 25, 2025 | Study Period:
Current sense resistors, also known as shunt resistors, are devices that measure the flow of current. They detect current and convert it to a measured output voltage.
In general, current sense resistors are low-value, high-power resistors. They are built with low resistance to reduce power consumption and eliminate the risk of short circuits, which can damage other components.
Current sense resistors are typically installed in-line on the power source-to-load conduction path. The part is typically designed with extremely low resistance values to minimize voltage drop and power loss. Resistance values for current sense resistors are typically measured in milliohms.
They are frequently linked to amplifiers in order to reduce the impact of noise while maintaining certain levels of resolution. An isolation amplifier is used when the subsequent circuitry is at a different voltage than the current path.
This is not a required configuration, but deciding between isolated and non-isolated circuits is an important consideration when designing a current flow measurement system.
The Global Current Sensing Resistor market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
Recently, ROHM announced the availability of shunt resistors, GMR50 and PMR series, giving industry-leading 4W rated power (at electrode temperature TK=90°C) in the small 5.0mm2.5mm (2010 type packaging) dimension. It is perfect for current sensing in power supply and motor circuits used in industrial machinery and automotive systems.
GMR: High heat dissipation and outstanding dependability are the hallmarks of the GMR line of high power shunt resistors. Higher rated power in a small form factor is feasible by optimising the heat dissipation pathway.
Applications: Automotive (ECUs, EFI, motor peripheral circuits) (ECUs, EFI, motor peripheral circuits). Industrial (FA equipment, motor peripheral circuits, power supplies), (FA equipment, motor peripheral circuits, power supplies),enormous appliances (AC, washers, refrigerators).
PMR: Ultra-low-ohmic shunt resistors in the PMR series start at 1m. Low inductance enables high accuracy current detection, while the patented trim-less structure minimises heat concentration and lowers temperature rise. A wide range of sizes are available in the portfolio to accommodate various applications.
Applications: portable gadgets, notebook computers, electronic devices, Automotive (EPS, power supplies, motor detecting circuits), (EPS, power supplies, motor detection circuits), Industrial (inverters, power tools, base stations) (inverters, power tools, base stations)
S.NO | Overview of Development | Details of Development |
1. | Littelfuse Introduces a New Current Sensing Resistor Family for the Automotive and Consumer Electronics Industries | Littelfuseâs updated CSRs provide a more affordable method of measuring the current flowing through circuits, enabling voltage control, monitoring, and power management for operations like motor speed control and battery charging. They also enable overcurrent safety. |
2. | The YAGEO Group has developed the world's smallest metal current detecting resistor, the PA0100. | The YAGEO Group has created the PA0100 (01005 size 0.4mm x 0.2mm), which is the smallest metal current detecting resistor in the world. |
3. | CTS Expands Product Line of Current Sensing Resistors | Current Sensing Resistor portfolio has undergone a significant increase, according to CTS Corporation. There are now new designs that offer reduced resistance values down to 0.25 milliohms, higher power ratings up to 5 Watts, and more common EIA package sizes. |
Thenew Littelfuse CSRseries of products sharpens the company's focus on current and voltage monitoring while expanding its line of circuit protection solutions. Due to their high precision and low resistance rating, each of the eight CSRs is either a metal foil, metal strip, or metal plate resistor that is used to measure currents in circuits.
The YAGEO Groupclients' pursuit of downsizing in size and tolerance could not be satisfied by the conventional mechanical production process. In order to create a current sensor with a small size and high accuracy and a resistance value as low as 10â20 m, YAGEO developed and utilized multiple semi-conductor manufacturing technologies.
It also combines low thermal EMF (thermal EMF), high precision (1%), and low temperature coefficient of resistance (TCR 300ppm/°C). The PA0100 jumpers have a maximum rated current of 8 amps and are used as metal jumpers.
CTSâselectronic systems use current sensing resistors to measure the current flow by converting it into a voltage that can be easily measured and controlled by a current sense amplifier circuit. For circuit control, monitoring, and protection, this is a crucial component in power and instrumentation applications.
Sl no | Topic |
1 | Market Segmentation |
2 | Scope of the report |
3 | Abbreviations |
4 | Research Methodology |
5 | Executive Summary |
6 | Introduction |
7 | Insights from Industry stakeholders |
8 | Cost breakdown of Product by sub-components and average profit margin |
9 | Disruptive innovation in the Industry |
10 | Technology trends in the Industry |
11 | Consumer trends in the industry |
12 | Recent Production Milestones |
13 | Component Manufacturing in US, EU and China |
14 | COVID-19 impact on overall market |
15 | COVID-19 impact on Production of components |
16 | COVID-19 impact on Point of sale |
17 | Market Segmentation, Dynamics and Forecast by Geography, 2023-2030 |
18 | Market Segmentation, Dynamics and Forecast by Product Type, 2023-2030 |
19 | Market Segmentation, Dynamics and Forecast by Application, 2023-2030 |
20 | Market Segmentation, Dynamics and Forecast by End use, 2023-2030 |
21 | Product installation rate by OEM, 2023 |
22 | Incline/Decline in Average B-2-B selling price in past 5 years |
23 | Competition from substitute products |
24 | Gross margin and average profitability of suppliers |
25 | New product development in past 12 months |
26 | M&A in past 12 months |
27 | Growth strategy of leading players |
28 | Market share of vendors, 2023 |
29 | Company Profiles |
30 | Unmet needs and opportunity for new suppliers |
31 | Conclusion |
32 | Appendix |