SMAJ33CA

The SMAJ33CA from JFD is a specific type of surface mount transient voltage suppressor (TVS) diode designed to protect sensitive electronic components from voltage spikes and transients. Here’s a detailed description of its features and characteristics:

Physical Characteristics:

• Package Type: The SMAJ33CA is housed in a compact SMA (DO-214AC) package, which is designed for surface mounting. This package is typically rectangular and has a low profile, making it suitable for space-constrained applications.
• Dimensions: The dimensions of the SMA package are approximately 4.0 mm in length, 2.0 mm in width, and 1.5 mm in height, although these can vary slightly based on the manufacturer.
• Terminals: It features two terminals for easy soldering onto printed circuit boards (PCBs). The terminals are usually made of a conductive metal, often tin-plated for enhanced solderability and corrosion resistance.

Electrical Characteristics:

• Reverse Stand-Off Voltage (V_RWM): The SMAJ33CA has a reverse stand-off voltage of 33V, which means it can withstand a continuous voltage of up to 33 volts without conducting.
• Clamping Voltage (V_C): During a transient event, the clamping voltage is typically around 50V, which is the maximum voltage that the device will allow to pass through to the protected circuit.
• Peak Power Dissipation: The device can handle peak power dissipation of up to 400W for a short duration (usually 8/20 µs pulse), making it effective for protecting against high-energy transients.
• Capacitance: The SMAJ33CA has a low capacitance, which helps maintain signal integrity in high-frequency applications.

Performance Features:

• Response Time: The response time of the SMAJ33CA is extremely fast, typically in the nanosecond range, allowing it to react quickly to voltage spikes.
• Temperature Range: It operates effectively over a wide temperature range, typically from -55°C to +150°C, making it suitable for various environmental conditions.
• Reliability: The device is designed for high reliability and longevity, often rated for over 1000 cycles of surge protection.

Applications:

The SMAJ33CA is commonly used in various applications, including:

• Consumer Electronics: Protecting devices like smartphones, tablets, and laptops from voltage spikes.
• Automotive Electronics: Safeguarding sensitive components in automotive systems from transients caused by load dumps or inductive switching.
• Telecommunications: Protecting communication lines and equipment from lightning strikes and other electrical disturbances.
• Industrial Equipment: Ensuring the reliability of control systems and machinery by preventing damage from voltage surges.

Compliance and Standards:

The SMAJ33CA typically complies with various industry standards for electronic components, ensuring it meets the necessary safety and performance criteria for use in commercial and industrial applications.

In summary, the SMAJ33CA from JFD is a robust and reliable transient voltage suppressor that provides essential protection for electronic circuits against voltage spikes, making it a critical component in many modern electronic devices.