STMicroelectronics SMBJ22CA-TR - Transient Voltage Suppressor

The SMBJ22CA-TR from STMicroelectronics is a robust transient voltage suppressor (TVS) diode, designed to protect sensitive electronic equipment from voltage transients induced by system inductance, lightning, and other transient voltage events. This device is particularly well-suited for safeguarding voltage-sensitive components which can be compromised by today’s increasingly complex circuitry. It is an essential component for product designs that require high reliability and protection against overvoltage transients.

This TVS diode is bidirectional, which means it can clamp transient voltages in both positive and negative directions, making it versatile for use in AC circuits or where the polarity is reversible or undefined. With a stand-off voltage of 22V, the SMBJ22CA-TR is capable of dissipating high transient power up to 600W (10/1000μs surge). This power dissipation ensures that devices are shielded from immediate voltage spikes, thus preventing potential damage.

The SMBJ22CA-TR comes in the SMB (DO-214AA) package, which is known for its compact footprint and low profile, making it suitable for high-density circuit boards where space is at a premium. It is also characterized by its fast response time, typically in the picosecond range, thereby providing prompt protection for sensitive circuits.

STMicroelectronics has designed the SMBJ22CA-TR to meet stringent industry standards, including IEC 61000-4-2 and IEC 61000-4-4, ensuring that it can withstand electrostatic discharge (ESD) and electrical fast transients (EFT), respectively. This TVS diode is RoHS compliant and adheres to STMicroelectronics' commitment to environmentally friendly manufacturing practices.

Applications for the SMBJ22CA-TR are vast and include a range of industrial and consumer electronics such as computer systems, communication devices, medical equipment, and other applications that require robust transient voltage protection. With its superior clamping capability, low leakage current, and high surge capability, the SMBJ22CA-TR is an excellent choice for designers looking to enhance the durability and reliability of their electronic products.