STMicroelectronics SMAJ28CA-TR TVS Diode

The SMAJ28CA-TR from STMicroelectronics is a robust Transient Voltage Suppression (TVS) diode, designed to protect sensitive electronic equipment from voltage transients induced by system level events or other transient overvoltage conditions. This TVS diode is particularly suitable for the protection of I/O interfaces, VCC bus, and other vulnerable circuits used in telecom, computer, industrial, and consumer electronic applications.

With its bidirectional clamping characteristic, the SMAJ28CA-TR is capable of providing protection in AC applications or where the polarity reverses. This feature ensures that the device can suppress both positive and negative transients, making it an ideal choice for a wide range of applications. The device has a stand-off voltage of 28V, which means it remains non-conductive until the threshold is exceeded, ensuring normal operation of the protected circuit without any interference.

The SMAJ28CA-TR is housed in an SMA package, which is known for its compact footprint and low profile, making it suitable for high-density circuit board designs. Its package is also designed for optimal heat dissipation, contributing to its ability to handle high transient power. The diode has a peak pulse power dissipation of 400W for a 10/1000μs waveform, which allows it to cope with significant power surges, ensuring reliable protection for sensitive components.

The device is compliant with the ISO 7637-2 pulse 5a and 5b standards, and it also meets the IEC 61000-4-2 and IEC 61000-4-4 international standards for electromagnetic compatibility (EMC). This compliance ensures that the SMAJ28CA-TR can be used in environments that demand high reliability and strict standards adherence.

STMicroelectronics has designed the SMAJ28CA-TR with longevity and robustness in mind. The diode's junction passivation optimized design provides it with a high reliability and a long operational life. Additionally, the product is RoHS compliant and halogen-free, reflecting STMicroelectronics' commitment to environmental sustainability.

Whether you are designing power supplies, communication ports, or any other application that requires transient voltage protection, the SMAJ28CA-TR offers a high-performance solution that engineers can trust to safeguard their electronic systems.