New transient voltage suppressors combine 3000 W of power dissipation, compact DFN packaging, and high-temperature operation for protection in automotive and industrial electronics.
Power protection components are getting smaller without compromising performance, as a new series of transient voltage suppressors (TVS) by Vishay Intertechnology targets space-constrained automotive and industrial systems. The latest unidirectional and bidirectional TVS devices deliver 3000 W power dissipation in a compact DFN6546A package while supporting operating temperatures up to 185°C.
Designed to safeguard sensitive electronics from voltage spikes caused by inductive load switching and lightning surges, the devices are intended for advanced automotive electronics, industrial automation, telecom, and energy systems. Automotive-qualified variants support applications such as ADAS, lidar, infotainment systems, battery management systems, onboard chargers, traction inverters, and electric power steering. Industrial-grade versions are intended for robot control boards, process automation equipment, server power modules, telecom infrastructure, medical systems, and energy storage systems.
The key features are:
- 3000 W transient power dissipation in compact DFN6546A package
- Ultra-low 0.88 mm package height for space-constrained PCBs
- Clamping voltage range from 16.7 V to 137 V
- Wettable flank design enables AOI inspection compatibility
- Automotive variants support operation up to +185°C
The newly introduced DFN6546A package measures 6.5 mm × 4.6 mm with a profile of just 0.88 mm, helping designers reduce PCB footprint in dense electronic assemblies. Despite the reduced size, the package architecture enables higher copper content and larger chip integration, improving thermal and electrical performance.
Compared to conventional SMPC (TO-277A) packages, the devices provide nearly twice the power dissipation while lowering profile height by around 20%. Against larger SMC (DO-214AB) packages, they maintain equivalent power dissipation while reducing component volume by 76%, making them suitable for compact high-density power designs.
The devices also incorporate wettable flanks, enabling automatic optical inspection (AOI) during manufacturing and eliminating the need for X-ray inspection. Depending on the variant, the TVS devices offer clamping voltages ranging from 16.7 V to 137 V.
The automotive-qualified series comply with AEC-Q101 standards, while industrial variants meet LL15i Industrial Reliability Qualification requirements. The components are RoHS-compliant, halogen-free, and support automated assembly processes with MSL 1 moisture sensitivity ratings.
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