TDK SPM6530T and SPM6550T power inductors available from Rutronik
As power densities increase, power supplies in modern electronic systems must handle higher currents while minimising board space, power losses and heat generation. TDK’s SPM6530T and SPM6550T surface-mount device (SMD) power inductor series are designed to meet these demands, combining compact dimensions with high current-handling capability and mechanical and thermal robustness. Both series are available from Rutronik.
The two series feature wire-wound construction, a metal core and magnetic shielding. They share a footprint of 7.1 × 6.5 mm but differ in height. The SPM6530T has a maximum height of 3.0 mm, while the 5.0 mm-high SPM6550T offers an alternative for applications with different power and packaging requirements.
Designed for high-current DC/DC converters
Both series use an optimised terminal design to support high-current operation and manage heat generation. The direct electrical and thermal connection is intended to support a high self-resonant frequency and limit temperature rise under load. The metal core enables high magnetic flux density, while the magnetically shielded construction helps reduce electromagnetic interference (EMI) in densely populated printed circuit board (PCB) layouts.
Key features
Compact SMD packages: 7.1 × 6.5 mm footprint, with maximum heights of 3.0 mm or 5.0 mm
Construction: Wire-wound design with a metal core and magnetic shielding
Electrical performance: High current-handling capability and high self-resonant frequency
Thermal performance: Designed to limit temperature rise under load
Robustness: Mechanical and thermal durability
Target applications: Industrial electronics, AI computing and automotive systems
Applications in industrial, automotive and AI-enabled systems
The SPM6530T and SPM6550T are primarily intended for DC/DC converters in industrial and automotive electronics. Other potential applications include power supplies for robotics and automation, as well as space-constrained embedded systems with increasing computational demands, including AI-enabled devices.
For automotive designs requiring different electrical characteristics, TDK also offers the SPM-VC series, which features higher withstand voltage and lower DC resistance (DCR). The appropriate series will depend on the application’s electrical, thermal and mechanical requirements.
