1SMB22AT3G

The 1SMB22AT3G is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc. It is designed to protect sensitive electronic components from voltage spikes and transients, such as those caused by electrostatic discharge (ESD) or lightning strikes.

Key Features:

1. Type: The 1SMB22AT3G 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 Dissipation: It has a peak power dissipation rating of 600 watts, which indicates its ability to absorb high-energy transients without failing.

3. Reverse Stand-Off Voltage (V_RWM): The device has a reverse stand-off voltage of 22 volts, which is the maximum voltage that can be applied across the diode without it conducting. This makes it suitable for applications where the normal operating voltage is below this threshold.

4. Clamping Voltage (V_C): When a transient occurs, the clamping voltage is the maximum voltage that the diode will allow to pass through. For the 1SMB22AT3G, the clamping voltage is typically around 30.5 volts at a specified peak pulse current.

5. Peak Pulse Current (I_PP): The diode can handle a peak pulse current of up to 40 amperes, which is crucial for protecting circuits from high-energy transients.

6. Package Type: The 1SMB22AT3G is housed in a DO-214AA (SMB) package, which is a surface-mount device (SMD) that allows for easy integration into various circuit designs. The package is compact, making it suitable for space-constrained applications.

7. Operating Temperature Range: The device operates effectively within a temperature range of -55°C to +150°C, ensuring reliability in various environmental conditions.

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

9. Compliance and Certifications: The 1SMB22AT3G is compliant with various industry standards, ensuring its reliability and performance in critical applications.

Summary:

The 1SMB22AT3G from Littelfuse Inc. is a robust and reliable transient voltage suppressor diode that provides essential protection for electronic circuits against voltage spikes. With its high power dissipation capability, suitable clamping voltage, and compact packaging, it is an ideal choice for a wide range of applications requiring transient protection.