1.5SMC18AT3G

The 1.5SMC18AT3G is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed to protect sensitive electronic components from voltage spikes and transients. This component is part of the 1.5SMC series, which is known for its high reliability and robust performance in various applications.

Key Features:

1. Type: The 1.5SMC18AT3G is a unidirectional TVS diode, meaning it is designed to clamp voltage in one direction, making it suitable for protecting DC circuits.

2. Peak Power Rating: It has a peak power rating of 1500 watts, which allows it to absorb significant energy from transient events without failing.

3. Reverse Stand-Off Voltage (V_RWM): The device has a reverse stand-off voltage of 18 volts, which is the maximum voltage that can be applied to the diode without causing it to conduct.

4. Clamping Voltage (V_C): During a transient event, the clamping voltage is typically around 24.5 volts, which is the voltage level at which the diode begins to conduct and divert excess energy away from sensitive components.

5. Breakdown Voltage (V_BR): The breakdown voltage is specified at approximately 20.0 volts, indicating the voltage at which the diode will start to conduct in reverse.

6. Capacitance: The diode features low capacitance, which is beneficial for high-speed data lines, ensuring minimal signal distortion during normal operation.

7. Package Type: The 1.5SMC18AT3G is housed in a DO-214AA (SMC) package, which is a surface-mount device (SMD) that provides a compact footprint and efficient thermal dissipation.

8. Operating Temperature Range: The device is rated for a wide operating temperature range, typically from -55°C to +150°C, making it suitable for various environmental conditions.

9. Applications: This TVS diode is commonly used in automotive electronics, telecommunications, consumer electronics, and industrial equipment, where protection against voltage transients is critical.

10. Compliance: The 1.5SMC18AT3G is compliant with various industry standards, ensuring its reliability and performance in critical applications.

Summary:

The 1.5SMC18AT3G from Littelfuse Inc. is a highly effective transient voltage suppressor designed to protect electronic circuits from voltage spikes. With its robust specifications, including a peak power rating of 1500 watts and a reverse stand-off voltage of 18 volts, it is well-suited for a wide range of applications, ensuring the longevity and reliability of sensitive electronic components. Its compact SMC package and wide operating temperature range further enhance its versatility in various environments.