TVS - Diodes

<p>The 15KPA170A is a unidirectional TVS diode from Littelfuse designed to protect sensitive electronic equipment from voltage transients. It offers a peak pulse power dissipation of 15000W (15kW) under 10/1000μs waveform, with a steady state power dissipation of 8W. The device features a reverse stand-off voltage of 170V and a clamping voltage of 272.7V at a peak pulse current of 55.4A. It can handle a peak forward surge current of 400A (8.3ms single half sine wave).</p><p>&nbsp;</p><p>The diode utilizes a glass passivated chip junction in a P600 axial through-hole package, providing fast response time typically less than 1ps. It is suitable for general purpose applications including I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronics. The operating junction temperature range is -55°C to 175°C.</p><p>&nbsp;</p><p>The 15KPA170A is RoHS3 compliant, halogen free, and UL recognized (V-0 flammability). It is lead-free with Pb-free E3 termination finish. This component is ideal for lightning surge protection and ESD protection per IEC 61000-4-2.</p>

<p>The BZW06-13B is a bidirectional transient voltage suppression (TVS) diode designed to protect sensitive electronics from over-voltage transients and electrostatic discharge (ESD). It features a stand-off voltage of 12.8 V and a breakdown voltage of 27.2 V. With a peak pulse power rating of 600 W (10/1000 µs waveform) and a peak forward surge current capability of 100 A (8.3 ms half-sine), it provides robust protection in a compact DO-15 (DO-204AC) through-hole package.</p><p>&nbsp;</p><p>This device offers a typical capacitance of 950 pF at 1 MHz and a maximum forward voltage of 3.0 V at 25 A. It is rated for steady state power dissipation of 5 W at 75°C ambient. The operating junction temperature range spans -50°C to +175°C, and the storage temperature range is -50°C to +175°C. The case material is UL 94V-0 rated for flammability.</p><p>&nbsp;</p><p>Typical applications include over-voltage and ESD protection in commercial and industrial grade equipment, as well as free-wheeling diode functions. The B suffix indicates bidirectional operation, making it suitable for AC line protection or applications where polarity is not fixed.</p>

<p>The 15KPA78A is a unidirectional TVS diode from Littelfuse Inc., part of the 15KPA series. It is designed to protect sensitive electronic circuits from voltage transients induced by lightning and other transient events. This device features a glass passivated chip junction in a P600 Axial package.</p><p>&nbsp;</p><p>With a reverse standoff voltage of 78V, the 15KPA78A begins conduction at breakdown (typically 86.7-95.8V) and clamps transients to 126.1V. It can handle peak pulse power of 15kW (10/1000µs waveform) and peak pulse current of 119.7A. The response time is typically less than 1.0ps from 0V to breakdown voltage. Steady state power dissipation is 8.0W, and the operating junction temperature range is -55°C to 175°C.</p><p>&nbsp;</p><p>This TVS diode is suitable for general purpose transient voltage protection, including I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronic applications. It provides ESD protection in accordance with IEC 61000-4-2 (30kV air/contact) and EFT protection per IEC 61000-4-4. The device has low incremental surge resistance and typical reverse leakage current less than 2µA.</p><p>&nbsp;</p><p>The 15KPA78A is offered in a through-hole P600 Axial package with axial leads, suitable for soldering. It is halogen-free and lead-free with matte tin plating, meeting Pb-free E3 requirements. The device is UL recognized (file number E230531).</p>