SMBJ18CA

The SMBJ18CA is a transient voltage suppressor (TVS) diode manufactured by Bourns, 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 SMBJ18CA has a breakdown voltage of approximately 18 volts, making it suitable for clamping voltage transients that exceed this threshold. It is designed to protect circuits operating at lower voltages, ensuring that the components remain safe from damage.

2. Power Dissipation: The device can handle a peak power dissipation of up to 600 watts for a short duration, which allows it to absorb significant energy from voltage spikes without failing.

3. Package Type: The SMBJ18CA is housed in a surface-mount package, specifically the SMB (DO-214AA) package, which is compact and allows for easy integration into various circuit designs. The package dimensions typically measure around 5.2 mm x 6.5 mm, with a height of about 2.5 mm.

4. Clamping Voltage: The clamping voltage is a critical specification, indicating the maximum voltage that the device will allow to pass through during a transient event. The SMBJ18CA is designed to clamp voltages effectively, ensuring that downstream components are protected.

5. Response Time: The response time of the SMBJ18CA is very fast, typically in the nanosecond range, which is essential for protecting sensitive electronics from fast transients.

6. Temperature Range: The operating temperature range for the SMBJ18CA is typically from -55°C to +150°C, making it suitable for a wide variety of environmental conditions.

7. Applications: This TVS diode is commonly used in applications such as ESD protection, surge protection in power lines, and safeguarding data lines in communication devices. It is ideal for use in consumer electronics, automotive systems, and industrial equipment.

8. Compliance and Standards: The SMBJ18CA meets various industry standards for reliability and performance, ensuring that it can be used in critical applications where failure is not an option.

Conclusion:

The SMBJ18CA from Bourns, Inc. is a robust and reliable transient voltage suppressor diode that provides essential protection for electronic circuits against voltage spikes. Its compact size, high power handling capability, and fast response time make it an excellent choice for a wide range of applications, ensuring the longevity and reliability of sensitive electronic components.