SMAJ33CA

The SMAJ33CA is a specific type of transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc. This component is designed to protect sensitive electronic devices from voltage spikes and transients, which can occur due to various factors such as lightning strikes, electrostatic discharge (ESD), or inductive load switching.

Key Features and Specifications:

1. Voltage Rating: The SMAJ33CA is designed to clamp voltage spikes at a breakdown voltage of approximately 33 volts. This makes it suitable for applications where the operating voltage is typically below this threshold, ensuring that the device can effectively protect against overvoltage conditions.

2. Power Dissipation: The device can handle a peak power dissipation of around 400 watts for a short duration, which is crucial for absorbing high-energy transients without failing.

3. Package Type: The SMAJ33CA is housed in a DO-214AA (SMA) package, which is a surface-mountable form factor. This package is compact, making it ideal for space-constrained applications while providing good thermal performance.

4. Clamping Voltage: During a transient event, the clamping voltage is typically around 45 volts, which means that the device will limit the voltage seen by the protected circuit to this level, thus preventing damage.

5. Reverse Stand-off Voltage: The reverse stand-off voltage is rated at 33 volts, indicating the maximum voltage that can be applied to the device without causing it to conduct.

6. Response Time: The SMAJ33CA has a fast response time, which is essential for protecting sensitive components from rapid voltage spikes.

7. Applications: This TVS diode is commonly used in various applications, including telecommunications, automotive electronics, consumer electronics, and industrial equipment. It is particularly useful in protecting data lines, power lines, and other sensitive circuits.

8. Environmental Considerations: The SMAJ33CA is designed to operate in a wide temperature range, typically from -55°C to +150°C, making it suitable for use in harsh environments.

9. Compliance and Standards: Littelfuse ensures that the SMAJ33CA meets various industry standards for reliability and performance, making it a trusted choice for engineers and designers.

Summary:

The SMAJ33CA from Littelfuse Inc. is a robust and reliable transient voltage suppressor diode that provides essential protection for electronic circuits against voltage transients. Its combination of a suitable breakdown voltage, high power dissipation capability, and compact packaging makes it an excellent choice for a wide range of applications where voltage spikes can pose a risk to sensitive components.