SMCJ75CA

The SMCJ75CA is a bidirectional transient voltage suppression (TVS) diode from ON Semiconductor, part of the SMCJ series. It offers 1500W peak pulse power dissipation (10/1000μs waveform) for single die configurations, with up to 2000W for stacked die parts. This device is designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient events.

Key specifications include a power dissipation of 6.5W (infinite heat sink at TL=50°C), operating temperature range of -65°C to 150°C, and storage temperature range of -65°C to 175°C. Thermal resistance is 15°C/W junction-to-lead and 75°C/W junction-to-ambient. The device features a fast response time of typically less than 1.0ps from 0V to breakdown voltage, and meets IEC 61000-4-2 ESD protection (30kV air/contact) and IEC 61000-4-4 EFT protection. It has a glass passivated chip junction and is halogen free and RoHS compliant.

The SMCJ75CA is offered in a surface mount package with matte tin lead-free plated termination. It is MSL Level 1 (unlimited) and supports reflow soldering up to 260°C for 30 seconds. The package is designed for optimized board space and includes built-in strain relief.

Typical applications include protection of I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronic systems. The device is also suitable for lightning surge protection.