SMBJ170CA

The SMBJ170CA is a transient voltage suppressor (TVS) diode manufactured by Bourns, Inc. It is designed to protect sensitive electronic components from voltage spikes and transients, such as those caused by electrostatic discharge (ESD) or lightning strikes.

Key Features:

1. Voltage Rating: The SMBJ170CA has a breakdown voltage of approximately 170 volts, making it suitable for applications where overvoltage protection is critical.

2. Power Dissipation: This device 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 SMBJ170CA 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.

4. Clamping Voltage: The clamping voltage is typically around 250 volts at a specified peak pulse current, ensuring that the voltage across the protected device remains within safe limits during a transient event.

5. Response Time: The SMBJ170CA features a fast response time, which is crucial for effectively protecting sensitive components from rapid voltage spikes.

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

7. Applications: This TVS diode is commonly used in telecommunications, automotive electronics, consumer electronics, and industrial applications where overvoltage protection is necessary.

8. RoHS Compliance: The SMBJ170CA is compliant with RoHS (Restriction of Hazardous Substances) standards, ensuring that it is environmentally friendly and safe for use in electronic devices.

Electrical Characteristics:

• Reverse Stand-off Voltage (V_R): 170V
• Breakdown Voltage (V_BR): 189V (min), 210V (max)
• Clamping Voltage (V_C): 250V at 5A
• Peak Pulse Power (P_PP): 600W (for 10/1000μs waveform)
• Capacitance (C): Typically around 100pF at 0V, 1MHz

Conclusion:

The SMBJ170CA from Bourns, Inc. is a robust and reliable transient voltage suppressor that provides essential protection for electronic circuits against voltage transients. Its combination of high power handling, fast response time, and wide operating temperature range makes it an ideal choice for a variety of applications requiring overvoltage protection.