(Pack of 50 Pieces) Chanzon SMD TVS Diodes SMAJ5.0A SMJ5.0 400W 5V SMA (DO-214AC) Unidirectional Channel 400 Watt 5 Volt

Description

Product Overview

The Chanzon SMAJ5.0A TVS diode is engineered to deliver robust transient voltage suppression in demanding industrial environments. With a peak pulse power rating of 400 watts and a working voltage of 5 volts, this unidirectional device clamps voltage spikes quickly, protecting downstream circuitry from damage. The diode follows the DO-214AC (SMA) surface‑mount package, offering a compact footprint that fits easily onto densely populated printed circuit boards.

Manufactured by Chanzon, a reputable supplier of electronic components, the SMAJ5.0A adheres to RoHS and lead‑free standards, ensuring compliance with environmental regulations. Each unit is packaged in an anti‑static ESD bag with a clear label that lists the main specifications, facilitating quick identification and long‑term storage without degradation.

Key electrical characteristics include a reverse standoff voltage of 5 V, a breakdown voltage typically between 6.5 V and 7.5 V, and a clamping voltage that remains well below the damage threshold of most low‑voltage logic circuits. The diode’s low capacitance minimizes signal distortion, making it suitable for high‑speed data lines as well as power rails.

Physical dimensions measure approximately 6.69 × 5.12 × 0.59 inches, and the entire 50‑piece pack weighs only 0.53 ounces, allowing for easy handling and integration into inventory management systems. The product has been available since February 2018 and holds a strong sales rank within the ESD suppressor category, reflecting its popularity among engineers and procurement specialists.

Overall, the SMAJ5.0A provides a reliable, cost‑effective solution for transient voltage protection, delivering performance that meets the rigorous demands of industrial, scientific, and consumer electronics applications.

Usage

These TVS diodes are ideally suited for protecting power supplies, motor control circuits, and communication interfaces in industrial automation equipment. Their 5 V rating aligns with common logic levels, making them a perfect fit for microcontroller‑based systems, sensor networks, and PLC modules that operate in harsh electrical environments.

In addition to protecting stationary equipment, the SMAJ5.0A is valuable for portable devices that experience frequent plugging and unplugging, such as handheld diagnostic tools, field‑programmable gate arrays, and ruggedized data loggers. The unidirectional design ensures that the diode conducts only in the direction of unwanted transients, preserving normal signal flow.

Engineers designing printed circuit boards can incorporate the SMAJ5.0A directly onto the board surface, reducing the need for additional through‑hole components and saving valuable board space. The low capacitance characteristic also means that high‑frequency signal integrity is maintained, which is critical for USB, Ethernet, and other high‑speed interfaces.

Maintenance technicians benefit from the pre‑packaged 50‑piece ESD bag, which simplifies bulk ordering and reduces the risk of component loss or damage during handling. The clear labeling on each bag allows for quick verification of part numbers and specifications during assembly or repair processes.

Why Choose Us

Choosing Chanzon’s SMAJ5.0A TVS diode means selecting a component that combines proven performance with strict quality control. Each batch undergoes rigorous testing to verify breakdown voltage, clamping voltage, and leakage current, ensuring that every diode meets the advertised specifications.

Our commitment to environmental responsibility is reflected in the RoHS‑compliant, lead‑free construction of the SMAJ5.0A. This not only helps your organization meet regulatory requirements but also supports sustainable manufacturing practices.

We provide comprehensive technical support, including detailed datasheets, application notes, and design guidelines. Our engineering team is available to assist with selection, layout optimization, and troubleshooting, ensuring that you achieve the best possible protection performance in your designs.

Furthermore, the 50‑piece packaging in an ESD‑protected bag offers added convenience for inventory management. The bag’s anti‑static properties safeguard the diodes from electrostatic discharge during storage and handling, extending shelf life and maintaining reliability over time.

Key Features

• High peak pulse power of 400 W ensures reliable protection against severe voltage spikes.
• 5 V unidirectional operation matches common low‑voltage logic levels for seamless integration.
• RoHS‑compliant, lead‑free construction supports environmentally responsible designs.
• Compact SMA surface‑mount package saves board space while maintaining low capacitance.
• Packaged in an anti‑static ESD bag with clear labeling for easy inventory and long‑term storage.

FAQ

What is the difference between unidirectional and bidirectional TVS diodes?

Unidirectional TVS diodes conduct in one direction, clamping negative transients while allowing normal positive voltage to pass. This makes them ideal for DC‑biased circuits such as logic lines. Bidirectional diodes clamp in both directions and are used for AC‑coupled or symmetrical signal lines.

Can the SMAJ5.0A be used on high‑speed data lines?

Yes. The diode’s low capacitance minimizes signal distortion, allowing it to protect high‑speed interfaces like USB, Ethernet, and HDMI without degrading performance.

How does the ESD bag protect the diodes during storage?

The bag is made from anti‑static material that dissipates electrostatic charges, preventing accidental discharge onto the components. This protection preserves the diode’s performance characteristics over extended storage periods.

Is the SMAJ5.0A suitable for automotive applications?

While the diode meets many automotive voltage protection requirements, automotive standards often demand higher temperature ratings and specific qualification tests. For automotive use, verify that the component complies with the relevant automotive specifications.

What warranty or support does Chanzon provide?

Chanzon offers a standard warranty against manufacturing defects and provides technical support for product selection, application design, and troubleshooting to ensure successful integration into your projects.