SMBJ18CA

The SMBJ18CA from KUU is a robust and compact surface-mount transient voltage suppressor (TVS) diode 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 SMBJ18CA is rated for a breakdown voltage of approximately 18 volts, making it suitable for clamping voltage spikes that exceed this threshold while allowing normal operation below it.

2. Power Dissipation: This TVS diode can handle a peak power dissipation of around 600 watts, which allows it to absorb significant energy from transient events without failing.

3. Package Type: The device comes in a compact SMB (DO-214AA) package, which is designed for surface mounting. This makes it easy to integrate into printed circuit boards (PCBs) while saving space.

4. Low Clamping Voltage: The SMBJ18CA features a low clamping voltage, which means that during a transient event, it will limit the voltage to a safe level, protecting downstream components from damage.

5. Fast Response Time: The diode has a very fast response time, ensuring that it can react quickly to voltage spikes, providing immediate protection to sensitive circuits.

6. Temperature Range: It operates effectively over a wide temperature range, typically from -55°C to +150°C, making it suitable for various environmental conditions.

7. Applications: Common applications include ESD protection, surge protection in power lines, and safeguarding sensitive ICs in automotive and industrial environments.

8. Compliance and Standards: The SMBJ18CA is compliant with various industry standards, ensuring reliability and performance in critical applications.

Physical Characteristics:

• Dimensions: The SMB package typically measures around 5.2 mm x 3.5 mm x 1.5 mm, making it compact yet robust.
• Marking: The diode is usually marked with its part number for easy identification on the PCB.

Conclusion:

The SMBJ18CA from KUU is an essential component for engineers looking to enhance the reliability of their electronic designs. Its combination of high power handling, low clamping voltage, and compact size makes it an ideal choice for protecting sensitive electronics from damaging voltage transients.