Chip resistors for cost-effective current sensing

Sense resistors are commonly used in applications such as low-power electronics, consumer devices, lighting systems, and security or detection equipment for power monitoring and control. These applications often do not require ultra-low resistance values, tight precision tolerances, or low temperature coefficient of resistance (TCR). Instead, they prioritize flexibility in form factor and affordability.

Stackpole Electronics’ CSR/CSRN series of thick film current sense resistors are well-suited to these needs, offering a wide selection of sizes and resistance values at a competitive cost, enabled by robust thick film technology. The series is available with resistance values ranging from 3mΩ to 7.5Ω, depending on the size, and provides tolerances as low as 1%.

Package sizes range from 0201 (rated at 0.05W) to 1225 with long-sided terminations and a power rating of up to 3W. This expansive range of sizes and values makes the CSR/CSRN series an exceptional choice for prototyping and rapid product development.