Product Overview: SM4T150A-TR from STMicroelectronics

The SM4T150A-TR is a robust transient voltage suppressor (TVS) diode, expertly designed by STMicroelectronics to safeguard sensitive electronic circuits from voltage transients induced by system inductance, lightning, and other disruptive events. This component is part of STMicroelectronics' Transil™ series, which is renowned for its ability to provide high overvoltage protection by clamping action within a very short response time. The SM4T150A-TR is particularly suitable for applications requiring a high level of reliability and surge protection.

Key Features

• Stand-off voltage: 150V - This parameter indicates the maximum voltage that can be applied to the TVS without causing it to conduct significantly, making it ideal for a wide range of applications.
• Peak pulse power: 400W (10/1000μs surge) - The SM4T150A-TR can handle a substantial power pulse without damage, ensuring reliable protection against surges.
• Low clamping factor: The device has a low clamping voltage relative to the stand-off voltage, which means it can effectively clamp down on overvoltages and protect the circuit.
• Fast response time: The TVS diode reacts almost instantaneously (< 1ps) to transient overvoltages, providing immediate protection for the circuit components.
• Low leakage current: Ensures minimal power loss when the device is in the stand-by mode, contributing to the energy efficiency of the overall system.
• Unidirectional surge protection: This feature makes the SM4T150A-TR suitable for protecting circuits with defined line polarity.

Applications

The SM4T150A-TR is versatile and can be used in a variety of applications, including:

• Power supply protection
• Industrial systems
• Telecommunication devices
• Computer interfaces
• Consumer electronics

Quality and Reliability

STMicroelectronics ensures that the SM4T150A-TR meets rigorous quality standards, with each component undergoing thorough testing to guarantee performance and durability. This TVS diode is provided in a DO-214AA package, also known as an SMB package, which is suitable for surface-mount technology (SMT) and offers a compact footprint for space-constrained applications.

The SM4T150A-TR is a testament to STMicroelectronics' commitment to providing advanced circuit protection solutions that combine high surge capability with efficient, reliable performance.