ON Semiconductor SMAJ22AT3G TVS Diode

The ON Semiconductor SMAJ22AT3G is a robust transient voltage suppressor (TVS) diode designed to protect sensitive electronic equipment from voltage transients induced by system inductive load switching and lightning. This high-quality TVS diode is an ideal solution for safeguarding voltage-sensitive components which can be affected by transient voltage spikes, offering a clamping voltage that is well-suited for a variety of applications.

Constructed in a compact SMA package, the SMAJ22AT3G is designed to absorb high transient voltages with its 400W peak pulse power capability for a 10/1000μs waveform. This makes it an excellent choice for protecting integrated circuits and other sensitive components in electronic systems. Its stand-off voltage is rated at 22V, and it can effectively shunt excess transient voltage to the ground, thereby preventing damage to the circuit components it is designed to protect.

Key features of the SMAJ22AT3G include its low leakage current, which ensures minimal power loss during normal operation, and its fast response time, which is critical for reacting to transient events. This TVS diode also boasts a low clamping voltage, which is essential for maintaining the integrity of the protected circuit while under stress from electrical transients.

The SMAJ22AT3G is designed to meet the rigorous standards of IEC 61000-4-2 and IEC 61000-4-4, providing confidence in its ability to withstand electrostatic discharge (ESD) and electrical fast transients (EFT). Its robust construction also means it is capable of withstanding multiple high-energy pulses without degradation, ensuring long-term reliability and performance.

With its bidirectional design, the SMAJ22AT3G provides symmetrical protection which is particularly useful in AC line protection or when the polarity of the transient could be either positive or negative. This feature simplifies circuit design and reduces the number of components required for effective transient protection.

Whether used in consumer electronics, telecommunications, or industrial applications, the ON Semiconductor SMAJ22AT3G is a versatile and reliable choice for engineers looking to enhance the durability and reliability of their electronic designs against voltage transients.