SMBJ40CA

The SMBJ40CA from Ruilon is a robust and reliable transient voltage suppressor (TVS) diode designed to protect sensitive electronic components from voltage spikes and transients. This component is particularly useful in applications where overvoltage protection is critical, such as in power supplies, telecommunications, and automotive electronics.

Key Features:

1. Voltage Rating: The SMBJ40CA is designed to clamp transient voltages at a maximum breakdown voltage of 40 volts. This makes it suitable for protecting circuits that operate at lower voltages, ensuring that any voltage spikes above this threshold are effectively suppressed.

2. Power Dissipation: The device can handle a peak power dissipation of up to 600 watts, allowing it to absorb significant energy from transient events without failing. This high power rating is essential for applications that may experience severe voltage surges.

3. Package Type: The SMBJ40CA 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 is designed for efficient thermal management, ensuring that heat generated during operation is dissipated effectively.

4. Response Time: The diode features a fast response time, which is crucial for protecting sensitive components from damage due to rapid voltage spikes. This quick action helps to minimize the risk of failure in downstream components.

5. Temperature Range: The operating temperature range for the SMBJ40CA is typically from -55°C to +150°C, making it suitable for use in a wide variety of environments, including harsh industrial and automotive settings.

6. Low Leakage Current: The device exhibits low leakage current under normal operating conditions, which helps to maintain the efficiency of the circuit and reduces the risk of false triggering.

7. Applications: The SMBJ40CA is ideal for use in various applications, including:

   • Power supply circuits
   • Data line protection
   • Automotive electronics
   • Telecommunications equipment
   • Consumer electronics

Electrical Characteristics:

• Reverse Stand-off Voltage (V_R): 40V
• Clamping Voltage (V_C): Typically around 60V at a specified peak pulse current.
• Peak Pulse Power (P_PP): 600W (for a 10/1000μs waveform).
• Capacitance: The device has a low capacitance value, which is beneficial for high-speed data lines, ensuring minimal signal distortion.

Conclusion:

The SMBJ40CA from Ruilon is a highly effective solution for transient voltage suppression, providing essential protection for electronic circuits against voltage spikes. Its combination of high power handling, fast response time, and compact packaging makes it a versatile choice for engineers looking to enhance the reliability and longevity of their electronic designs.