STMicroelectronics SMAJ28A-TR Transient Voltage Suppressor

The SMAJ28A-TR from STMicroelectronics is a robust Transient Voltage Suppressor (TVS) diode designed to protect sensitive electronic equipment from voltage transients induced by system inductance or lightning. This product is a part of the SMAJ series, which is well-regarded for its reliability and performance in surge protection.

With its stand-off voltage of 28V, the SMAJ28A-TR is capable of clamping and dissipating the energy of overvoltage events without sustaining damage. It is specifically designed to protect components which are connected to data and power lines from the destructive effects of electrostatic discharge (ESD), electrical fast transients (EFT), and other high-energy disturbances.

Key Features:

• Peak Pulse Power: The SMAJ28A-TR can handle a peak pulse power of 400W (10/1000μs waveform), providing robust protection against surges.
• Breakdown Voltage: Precisely controlled breakdown voltage at 28V ensures accurate triggering of protection mechanisms when needed.
• Low Leakage Current: It has a very low leakage current, which helps to maintain energy efficiency in the circuit.
• Fast Response Time: The device responds to overvoltage events in less than 1 picosecond, offering immediate protection to the circuit components.
• Unidirectional Protection: The SMAJ28A-TR offers unidirectional surge protection, making it suitable for DC voltage applications.
• Compact Package: It comes in a slim DO-214AC (SMA) package, which is ideal for high-density circuit board designs.

Applications:

The SMAJ28A-TR is used in a wide range of applications where transient voltage protection is crucial. This includes:

• Consumer electronics such as TVs, computers, and smartphones
• Industrial systems where precise voltage control is necessary
• Telecommunication devices that require consistent data integrity
• Portable devices where space and power efficiency are important
• Automotive electronics that are exposed to harsh electrical environments

This TVS diode is RoHS compliant and adheres to ISO 9001 quality management systems, ensuring both environmental responsibility and product quality. The SMAJ28A-TR from STMicroelectronics represents a reliable solution for protecting sensitive circuits from voltage transients, thus enhancing the longevity and reliability of electronic systems.