SMBJ5.0A

The SMBJ5.0A is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed to protect sensitive electronic components from voltage spikes and transients. This device is particularly useful in applications where overvoltage protection is critical, such as in telecommunications, automotive electronics, and consumer electronics.

Key Features:

1. Voltage Rating: The SMBJ5.0A is rated for a breakdown voltage of approximately 5.0 volts, making it suitable for clamping voltage-sensitive circuits.

2. Power Dissipation: It has a peak power dissipation capability of around 400 watts, allowing it to absorb significant energy from transient events without failing.

3. Package Type: The diode is housed in a DO-214AA (SMB) package, which is a surface-mount device (SMD) that provides a compact footprint, making it ideal for space-constrained applications.

4. Response Time: The SMBJ5.0A features a fast response time, typically in the nanosecond range, ensuring that it can react quickly to transient events and protect downstream components effectively.

5. Clamping Voltage: The device has a low clamping voltage, which minimizes the risk of damage to sensitive components during a transient event.

6. Operating Temperature Range: It operates effectively over a wide temperature range, typically from -55°C to +150°C, ensuring reliability in various environmental conditions.

7. RoHS Compliance: The SMBJ5.0A is compliant with RoHS (Restriction of Hazardous Substances) regulations, making it an environmentally friendly choice for manufacturers.

Applications:

• Telecommunications Equipment: Protects against voltage spikes in communication lines.
• Automotive Electronics: Safeguards sensitive circuits from transients caused by load dumps or inductive kickback.
• Consumer Electronics: Used in devices like smartphones, tablets, and computers to protect against ESD (electrostatic discharge) and other voltage transients.

Electrical Characteristics:

• Reverse Stand-off Voltage (V_R): 5.0V
• Breakdown Voltage (V_BR): Typically around 5.6V
• Clamping Voltage (V_C): Approximately 9.0V at a specified peak pulse current.
• Peak Pulse Current (I_PP): Can handle a peak pulse current of up to 30A for a specified duration.

Conclusion:

The SMBJ5.0A from Littelfuse Inc. is a robust and reliable transient voltage suppressor diode that provides essential protection for electronic circuits against voltage spikes. Its compact design, high power handling capability, and fast response time make it an excellent choice for a wide range of applications in various industries.