STMicroelectronics SMAJ12A-TR Transient Voltage Suppressor

The SMAJ12A-TR from STMicroelectronics is a robust transient voltage suppressor (TVS) designed to protect sensitive electronic equipment from voltage spikes and transients induced by lightning and other transient voltage events. This TVS diode is a popular choice for safeguarding voltage-sensitive components in a variety of applications, including consumer electronics, automotive systems, and industrial equipment.

Manufactured with STMicroelectronics' state-of-the-art technology, the SMAJ12A-TR is designed to clamp transient voltages and dissipate high surge currents effectively, ensuring the reliability and longevity of electronic systems. Its bidirectional clamping action provides symmetrical protection, making it suitable for AC applications or situations where the polarity of the transient could be either positive or negative.

The SMAJ12A-TR features a stand-off voltage of 12V, which allows it to tolerate normal operating conditions without any significant leakage current. In the event of a voltage surge, the device responds swiftly, clamping the overvoltage to a safe level and thus preventing damage to the protected components. The peak pulse power dissipation of this TVS diode is 400W (10/1000μs waveform), which enables it to handle substantial transient power spikes.

With its compact SMA (DO-214AC) package, the SMAJ12A-TR is ideal for space-constrained applications. The device's small footprint and low profile make it easy to integrate into a wide range of electronic assemblies. Furthermore, the SMAJ12A-TR is RoHS compliant and adheres to international environmental standards, reflecting STMicroelectronics' commitment to environmentally responsible manufacturing.

Key features of the SMAJ12A-TR include:

• Transient protection for data lines and power supplies
• Stand-off voltage: 12V
• Peak pulse power: 400W (10/1000μs waveform)
• Low incremental surge resistance
• Fast response time
• Operating temperature range: -55°C to +150°C
• RoHS compliant and halogen-free

The SMAJ12A-TR is a reliable choice for designers and engineers looking to enhance the durability and safety of their electronic systems. Its combination of high surge capability, fast response, and compact design make it an essential component for transient voltage protection.