SMF30A

The SMF30A is a specific model of a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc. This component is designed to protect sensitive electronic devices from voltage spikes and transients, which can occur due to various factors such as lightning strikes, electrostatic discharge (ESD), or switching surges.

Key Features and Specifications:

1. Type: The SMF30A is a unidirectional TVS diode, meaning it is designed to clamp voltage in one direction, providing protection for circuits that require such functionality.

2. Peak Power Rating: The device has a peak power rating of 600 watts, which indicates its ability to absorb high-energy transients without failing.

3. Reverse Stand-Off Voltage (V_RWM): The SMF30A has a reverse stand-off voltage of 30 volts. This is the maximum voltage that can be applied to the diode in the reverse direction without causing it to conduct.

4. Clamping Voltage (V_C): When a transient occurs, the clamping voltage is the maximum voltage that the diode will allow to pass through to the protected circuit. For the SMF30A, this value is typically around 45 volts at a specified peak pulse current.

5. Peak Pulse Current (I_PP): The device can handle a peak pulse current of up to 5.0 A, which is crucial for protecting against high-energy transients.

6. Package Type: The SMF30A is typically housed in a DO-214AA (SMB) package, which is a surface-mount device (SMD) that allows for easy integration into various circuit designs.

7. Operating Temperature Range: The diode operates effectively within a temperature range of -55°C to +150°C, making it suitable for a wide variety of applications, including automotive and industrial environments.

8. Applications: The SMF30A is commonly used in applications such as telecommunications, consumer electronics, automotive electronics, and industrial equipment, where protection from voltage spikes is critical.

9. Compliance and Standards: The device is compliant with various industry standards, ensuring reliability and performance in critical applications.

Summary:

The SMF30A from Littelfuse Inc. is a robust and reliable transient voltage suppressor diode designed to protect electronic circuits from damaging voltage spikes. With its high power rating, suitable clamping voltage, and wide operating temperature range, it is an ideal choice for a variety of applications requiring effective surge protection. Its compact package and unidirectional design make it easy to integrate into modern electronic systems, ensuring the longevity and reliability of sensitive components.