STMicroelectronics

STPS340U

The STPS340U is a high-voltage, high-power transient voltage suppressor (TVS) diode from STMicroelectronics. It is designed to protect sensitive electronic equipment from voltage transients and electrostatic discharge (ESD) events.

Description:

The STPS340U is a unidirectional TVS diode with a maximum clamping voltage of 340V and a bidirectional breakdown voltage of 13.6V. It is housed in a DO-214AA (SMA) package, which is a standard surface-mount package for TVS diodes.

Features:

1. High-voltage protection: The STPS340U provides high-voltage protection up to 340V, making it suitable for applications with high-voltage transients.
2. Bidirectional breakdown: The TVS diode has a bidirectional breakdown voltage of 13.6V, which allows it to protect against both positive and negative voltage transients.
3. Low capacitance: The STPS340U has a low capacitance of 3pF, making it suitable for high-speed data lines and radio frequency (RF) applications.
4. High surge current capability: The TVS diode can handle high surge currents, making it suitable for protecting equipment in harsh environments or applications with high-energy transients.
5. ESD protection: The STPS340U provides robust protection against electrostatic discharge events, with an ESD rating of ±30kV contact discharge and ±30kV air discharge.

Applications:

1. Power supply protection: The STPS340U can be used to protect power supplies from voltage transients caused by lightning, power line surges, or other high-energy events.
2. Data line protection: The low capacitance of the STPS340U makes it suitable for protecting high-speed data lines, such as Ethernet, USB, and HDMI connections.
3. RF and telecommunications: The TVS diode can be used to protect RF equipment and telecommunications infrastructure from voltage transients and ESD events.
4. Industrial control systems: The STPS340U can be used to protect industrial control systems, such as programmable logic controllers (PLCs) and motor drives, from voltage transients and ESD events.
5. Automotive applications: The TVS diode can be used to protect automotive electronic systems, such as infotainment systems, engine control units (ECUs), and sensor interfaces, from voltage transients and ESD events.

In summary, the STPS340U is a high-voltage, high-power TVS diode that offers robust protection against voltage transients and ESD events. Its features, such as low capacitance and high surge current capability, make it suitable for a wide range of applications, including power supply protection, data line protection, RF and telecommunications, industrial control systems, and automotive applications.