Diode 1N5349B Motorola Zener 12V 5W Axial Pack of 10

Description

Product Overview

The Motorola 1N5349B Zener diode is engineered to deliver a precise 12 V reference with a 5 W power rating, making it a versatile component for a wide range of electronic designs. Housed in a classic axial leaded package, each diode measures approximately 7.5 mm in length, providing a compact footprint that fits easily onto standard through‑hole PCBs. The device is built with a silicon crystal structure that ensures stable breakdown voltage across temperature variations, while the 5 W rating offers ample headroom for power‑intensive applications. Packaged in a convenient set of ten, this product reduces inventory complexity for manufacturers and hobbyists alike, delivering consistent performance from the first unit to the last.

Usage

These Zener diodes excel in environments where voltage regulation is critical. Typical use cases include protecting power supplies in industrial control panels, stabilizing voltage in automotive electronic modules, and providing reference voltages for sensor circuits in hobby projects. The axial leads allow for straightforward soldering, whether you are assembling a prototype on a breadboard or integrating the component into a high‑volume production line. Their 5 W capability makes them suitable for applications that experience transient spikes, such as motor drive circuits, LED driver boards, and battery management systems. The robust construction also tolerates harsh operating conditions, including temperature extremes and mechanical vibration, ensuring reliable operation over the product’s lifespan.

Why Choose Us

Choosing Motorola’s 1N5349B Zener diode means selecting a component backed by decades of semiconductor expertise and rigorous quality control. Each diode undergoes comprehensive testing for voltage accuracy, leakage current, and thermal performance, guaranteeing that the specifications listed are met or exceeded. Our packaging of ten units per box simplifies procurement for engineers who need multiple parts for design verification or production runs. In addition, we provide responsive technical support and a clear return policy, giving you confidence that any issues will be addressed promptly. The combination of proven reliability, competitive pricing, and dedicated customer service makes this product a smart investment for both large‑scale manufacturers and individual makers.

Key Features

• Precise 12 V reference ensures stable operation of sensitive circuits.
• 5 W power rating handles transient spikes and high‑current loads.
• Axial leaded design simplifies soldering on both prototype and production boards.
• Pack of ten reduces inventory management and lowers per‑unit cost.
• Dedicated technical support and hassle‑free returns for peace of mind.

FAQ

What is the maximum current this Zener diode can handle?

The 1N5349B is rated for a continuous current of 0.5 A, which translates to a maximum power dissipation of 5 W at its 12 V breakdown voltage. This makes it suitable for most regulation tasks where the current does not exceed this limit.

Can I use this diode in a surface‑mount application?

While the diode is supplied in an axial leaded package, it can be adapted for surface‑mount use with appropriate lead‑bending techniques or by mounting the leads on a small PCB pad. However, for optimal performance and ease of assembly, a through‑hole mounting method is recommended.

How does temperature affect the breakdown voltage?

Motorola’s Zener diodes have a temperature coefficient of approximately 0.05 %/°C. This means the breakdown voltage will shift only slightly with temperature changes, providing reliable regulation across a typical operating range of –55 °C to +150 °C.

Is this diode suitable for automotive applications?

Yes. The 5 W rating, robust axial construction, and wide temperature range make the 1N5349B an excellent choice for automotive voltage regulation, protecting electronic modules from voltage transients and ensuring consistent performance under harsh conditions.

What warranty or guarantee does the manufacturer provide?

Motorola offers a standard limited warranty covering manufacturing defects for a period of one year from the date of purchase. In addition, our distribution channel provides a 30‑day satisfaction guarantee, allowing you to return any unused units for a full refund.