SMDJ30CA

The SMDJ30CA is a surface-mount transient voltage suppressor (TVS) diode manufactured by Littelfuse 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 SMDJ30CA has a breakdown voltage of approximately 30 volts, making it suitable for applications that require clamping of voltage transients at this level.

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

3. Package Type: The SMDJ30CA is housed in a DO-214AA (SMB) package, which is a compact, surface-mount design that facilitates easy integration into printed circuit boards (PCBs). The package dimensions typically measure around 5.2 mm x 4.6 mm x 2.5 mm.

4. Clamping Voltage: The clamping voltage is specified at a certain peak pulse current, ensuring that the device will limit the voltage to a safe level during transient events.

5. Response Time: The SMDJ30CA features a fast response time, which is critical for protecting sensitive components from high-speed transients.

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: Common applications for the SMDJ30CA include telecommunications, automotive electronics, consumer electronics, and industrial equipment, where protection from voltage spikes is essential.

8. Compliance and Standards: The SMDJ30CA is compliant with various industry standards, ensuring reliability and performance in critical applications.

Electrical Characteristics:

• Reverse Stand-off Voltage (V_R): 30V
• Breakdown Voltage (V_BR): Typically around 33V
• Clamping Voltage (V_C): Specified at a certain peak pulse current (e.g., 45V at 10A)
• Peak Pulse Power (P_PP): 600W (for 8/20μs waveform)

Conclusion:

The SMDJ30CA from Littelfuse Inc. is a robust and reliable transient voltage suppressor that provides essential protection for electronic circuits against voltage transients. Its surface-mount design, high power handling capability, and fast response time make it an ideal choice for a wide range of applications in modern electronic devices.