High-Power TVS Diodes in SMD Package

Models PTVS6-058C-SH and PTVS6-076C-SH from Bourns^® are high current bidirectional TVS diodes designed for use in high-power DC bus clamping applications. These devices offer bidirectional port protection meeting IEC 61000-4-5 8/20 μs current surge requirements and are RoHS compliant. When compared to competing MOV technology, the use of silicon technology in the power TVS products provides a lower clamping voltage under surge, greater performance stability, and increased reliability.

The SMD package provides a reduction in peak clamping voltage compared to the equivalent through-hole device because of its lower lead inductance. The result is reduced electrical stress on the protected circuitry. In addition, it simplifies assembly and can reduce costs by eliminating the extra design step in cases where the power TVS diode is the only through-hole component on the printed circuit board.

These devices exhibit an excellent surge response versus temperature. The maximum surge current at 150°C exceeds 70% of their rated value at 25°C.