Chanzon 1N4739A 1W Zener Diode 9.1V DO-41 Pack of 100 Pieces

Description

Product Overview

The Chanzon 1N4739A Zener diode is engineered to provide a precise 9.1 V reference voltage while handling up to 1 W of power dissipation. Housed in the industry‑standard DO‑41 axial package, the component measures a compact 6.69 × 5.12 × 0.59 inches, making it easy to integrate into dense circuit layouts. Its axial lead configuration simplifies through‑hole mounting, and the device’s low reverse leakage current ensures minimal power loss during operation. The diode is fully RoHS‑compliant, featuring a lead‑free construction that meets stringent environmental standards, which is essential for modern electronic assemblies that prioritize sustainability.

Technical specifications highlight a tight voltage tolerance and excellent temperature stability, allowing designers to rely on consistent performance across a wide operating range. The 1N4739A model is part of Chanzon’s extensive Zener diode family, known for high reliability and long shelf life. Each unit is individually tested to guarantee that the breakdown voltage remains within the specified 9.1 V ±5 % range, providing confidence for both professional engineers and hobbyist developers.

Packaging is designed for protection and easy identification. The diodes are sealed in an anti‑static (ESD) bag that includes a clear label with the main specifications, reducing the risk of electrostatic discharge damage during handling and storage. This packaging approach also streamlines inventory management for distributors and end‑users, allowing quick visual verification of part numbers and key parameters without the need for additional documentation.

Chanzon’s commitment to quality is reflected in the manufacturing process, which incorporates rigorous quality control steps such as automated optical inspection and electrical testing. The result is a component that consistently meets or exceeds the performance criteria set by industry standards, making it a dependable choice for applications ranging from power supplies and voltage regulators to protective clamping circuits in consumer electronics.

Usage

In practical applications, the 1N4739A Zener diode excels in voltage regulation tasks where a stable reference is required. Designers often employ it in linear regulator circuits to maintain a constant output voltage despite variations in input supply or load conditions. Its 1 W power rating provides sufficient headroom for moderate current demands, making it suitable for both low‑power and medium‑power designs.

Beyond regulation, the diode serves as an effective protective element in over‑voltage scenarios. By placing the Zener across sensitive components, it can clamp transient spikes to the 9.1 V threshold, safeguarding downstream circuitry from damage caused by voltage surges. This protective capability is especially valuable in automotive electronics, industrial control systems, and renewable energy converters where voltage fluctuations are common.

For hobbyists and makers, the 1N4739A offers a versatile building block for experimental projects. Its through‑hole form factor aligns well with breadboard prototyping, allowing quick insertion and removal during iterative testing. Whether constructing a simple LED driver, a temperature‑compensated power supply, or a custom sensor interface, the diode’s predictable behavior simplifies design calculations and reduces the need for extensive component selection.

Why Choose Us

Choosing Chanzon means selecting a brand with a proven track record in semiconductor reliability. The company’s manufacturing facilities adhere to ISO‑9001 standards, ensuring that each batch of Zener diodes undergoes systematic process controls and documentation. This commitment to consistency translates into lower failure rates and longer product lifespans for end users.

Customer support is a cornerstone of the Chanzon experience. Technical assistance is available to help engineers troubleshoot circuit integration challenges, interpret datasheets, and optimize performance. Additionally, the company provides comprehensive documentation, including detailed specifications, application notes, and recommended design guidelines, all accessible through the official website.

Environmental responsibility is another differentiator. By producing lead‑free, RoHS‑compliant components, Chanzon helps customers meet regulatory requirements and corporate sustainability goals. The ESD‑safe packaging further reduces waste and minimizes the risk of component damage, contributing to a more efficient supply chain.

Key Features

• Accurate 9.1 V reference ensures stable voltage regulation for diverse circuits
• 1 W power rating provides ample headroom for moderate current applications
• Lead‑free, RoHS‑compliant construction meets modern environmental standards
• Compact DO‑41 axial package fits easily into tight PCB layouts and breadboards
• Dedicated technical support and detailed documentation for seamless integration

FAQ

What is the maximum current this Zener diode can handle?

The 1N4739A is rated for a continuous power dissipation of 1 W. At its nominal breakdown voltage of 9.1 V, this corresponds to a maximum current of approximately 110 mA. Designers should allow a safety margin and consider temperature derating when operating near the limit.

Is the diode suitable for high‑frequency applications?

While the DO‑41 package offers good electrical performance, the 1N4739A is primarily intended for low‑ to medium‑frequency regulation and protection tasks. For very high‑frequency circuits, a surface‑mount device (SMD) Zener with lower parasitic inductance may be more appropriate.

Can I use this diode in a temperature‑compensated power supply?

Yes. The 1N4739A exhibits a relatively low temperature coefficient, making it a solid choice for temperature‑compensated designs. Pairing it with a thermistor or a temperature‑sensing circuit can further improve stability across a wide temperature range.

How should I store the diodes to maintain their reliability?

Store the diodes in a dry, temperature‑controlled environment, preferably within the provided anti‑static bags. Avoid exposure to high humidity or extreme temperatures, as these conditions can affect the semiconductor material and lead to drift in breakdown voltage.

What warranty does Chanzon provide for this product?

Chanzon offers a standard one‑year limited warranty covering manufacturing defects. If a diode fails due to a defect within the warranty period, the company will replace the part at no additional cost, provided the customer supplies proof of purchase.