Description
Product Overview
The 1N5338B Zener diode series is engineered to deliver precise voltage clamping at 5.1 V with a robust 5 W power dissipation capability. Each diode is fabricated from high‑purity silicon, ensuring low leakage currents and stable operation across a wide temperature range. The 20‑piece pack provides ample inventory for batch production, repair kits, and educational labs, reducing the need for frequent re‑ordering. Dimensions of 3.31 × 2.48 × 0.35 in and a lightweight 0.32 oz per unit make the components easy to handle and integrate into dense circuit layouts. The product has earned a strong reputation on Amazon, reflected by a 4.7‑star rating from 11 verified purchasers and a best‑seller rank of #13 in Zener Diodes.
![[Product front view showing all components]](https://www.bloomgoods.store/wp-content/uploads/2026/08/e0a8c0e8d0494f928427e0b027f45a7f.jpg)
Usage
These Zener diodes excel in applications where voltage regulation and surge protection are critical. In industrial settings, they safeguard power supplies, motor controllers, and sensor interfaces from voltage spikes, extending equipment lifespan. Hobbyists and makers rely on the 5.1 V reference for Arduino, Raspberry Pi, and microcontroller projects, ensuring stable logic levels for analog‑to‑digital conversion and reference circuits. Educational institutions use the pack for laboratory experiments that demonstrate semiconductor behavior, breakdown voltage, and temperature coefficients, providing students with hands‑on experience. The compact packaging allows easy insertion into breadboards, perfboards, and surface‑mount designs, making the diodes versatile across a broad spectrum of electronic environments.
Why Choose Us
Choosing our 1N5338B Zener diode pack means selecting a product backed by rigorous quality control and a commitment to customer satisfaction. Each diode undergoes a multi‑stage testing process that verifies voltage tolerance, power handling, and leakage specifications, guaranteeing that every unit meets or exceeds the original manufacturer’s data sheet. Our supply chain partners adhere to ISO‑9001 standards, and we perform random batch audits to catch any deviations before products reach you. In the unlikely event of a defect, our responsive support team offers hassle‑free refunds or exchanges, reinforcing confidence in the reliability of your purchase.
Key Features
- Precise 5.1 V regulation ensures stable circuit operation
- 5 W power rating provides strong surge protection for industrial gear
- Compact 20‑piece pack reduces inventory costs and storage space
- High‑purity silicon construction delivers low leakage and long lifespan
- Dedicated customer support with easy return or exchange policy
FAQ
What is the maximum reverse current the diode can handle?
The 1N5338B Zener diode is rated for a maximum reverse current of 5 A continuous at its 5 W power dissipation limit. This rating ensures reliable operation even when subjected to transient spikes in industrial power supplies.
Can these diodes be used in surface‑mount applications?
Yes. Although the diodes are supplied in a through‑hole package, they can be adapted for surface‑mount use with appropriate solder pads or by using a small adapter board. The compact dimensions make them suitable for tight board layouts.
How do I identify a faulty diode in my circuit?
A faulty Zener diode typically exhibits either a higher than specified leakage current or a shift in breakdown voltage. Using a multimeter in diode‑test mode, you can compare the measured voltage against the 5.1 V rating; significant deviation indicates a need for replacement.
Are these diodes suitable for temperature‑sensitive applications?
The 1N5338B diodes operate reliably from –55 °C to +150 °C, making them appropriate for most temperature‑sensitive environments. Their stable temperature coefficient ensures consistent voltage regulation across the specified range.
What warranty does the product include?
We provide a one‑year limited warranty covering manufacturing defects. If a diode fails due to a defect within this period, we will replace it at no additional cost, reinforcing our confidence in product quality.




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