1N4749ATR Zener Diodes by ON Semiconductor – 24V Voltage Regulation with Reliable Clamping Protection
The Zener Diodes 1N4749ATR by ON Semiconductor are robust, 1-watt Zener diodes designed for accurate 24V voltage regulation in power circuits. Ideal for industrial, consumer, and automotive electronics, these diodes offer a stable breakdown voltage with excellent clamping characteristics, making them ideal for protecting sensitive components from overvoltage damage.
In this blog, we’ll cover the key specifications, features, applications, wiring guidance, and how to order or download the datasheet from Xon Electronics. When your circuit requires dependable voltage reference or transient protection, the Zener Diodes by ON Semiconductor are a smart, affordable solution.
Technical Specifications of 1N4749ATR
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Manufacturer: ON Semiconductor
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Part Number: 1N4749ATR
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Type: Zener Diode
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Zener Voltage (Vz): 24V
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Power Dissipation: 1W
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Mounting Type: Through Hole (DO-41 Package)
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Zener Tolerance: ±5%
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Max Zener Impedance: 30 Ohms @ 9.5mA
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Operating Temperature: -65°C to +200°C
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Category: Diodes, Zener Diodes by ON Semiconductor
This diode is RoHS compliant and engineered for use in demanding electrical environments.
Key Features of 1N4749ATR Zener Diode
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Stable 24V Regulation – Maintains voltage levels across varying loads
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1W Power Rating – Ideal for medium-power applications
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DO-41 Package – Industry-standard format for easy integration
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Wide Operating Range – Withstands harsh environmental conditions
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Trusted Brand – Backed by the reliability of ON Semiconductor
With high reliability and wide availability, the 1N4749ATR Zener Diodes by ON Semiconductor are a staple for engineers worldwide.
Applications of 1N4749ATR
The 1N4749ATR Zener Diodes by ON Semiconductor are commonly used in:
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Voltage Reference Circuits
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Power Supply Protection
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Battery Chargers and DC-DC Converters
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Automotive Electronics
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LED Drivers and Lighting Systems
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Consumer Electronics Devices
These Zener diodes ensure that overvoltage conditions are managed efficiently, reducing the risk of component damage.
Wiring and Connection Overview
[Reverse-Biased Configuration] – Connect anode to ground and cathode to the voltage input line
[Voltage Clamping] – The diode conducts when voltage exceeds 24V, clamping the output to protect the circuit
This simple and effective wiring setup makes it easy to implement overvoltage protection in new or legacy designs.
Use Case Scenario: Automotive ECU Overvoltage Protection
Scenario: An automotive electronics supplier needed a compact, durable solution to protect the microcontroller inputs of an ECU from electrical spikes.
Problem: Frequent voltage spikes were causing intermittent failures and reliability issues.
Solution: The 1N4749ATR Zener Diodes by ON Semiconductor provided precise 24V clamping and thermal tolerance up to 200°C.
Result: Improved ECU reliability, lower replacement rates, and streamlined production using standard DO-41 components.
Download Datasheet for 1N4749ATR
Need electrical curves, package dimensions, or application guidance?
Download 1N4749ATR Datasheet from Xon Electronics
Why Buy from Xon Electronics?
Xon Electronics is your trusted supplier of authentic 1N4749ATR Zener Diodes by ON Semiconductor, offering:
- 100% Genuine ON Semiconductor Products
- Global Shipping – USA, India, Australia, Europe & more
- OEM & Bulk Order Discounts
- Expert Tech Support
- Safe and Easy Checkout Experience
Order today at www.xonelec.com and get guaranteed quality and fast delivery.
Conclusion
The 1N4749ATR Zener Diodes by ON Semiconductor provide reliable 24V voltage regulation in a compact, through-hole package. With 1W power dissipation and precise breakdown performance, they’re the perfect choice for protecting sensitive electronics in industrial, automotive, and consumer systems. Now available at Xon Electronics with global shipping options.
FAQs – 1N4749ATR Zener Diode
Q1. What is the Zener voltage for this diode?
24V with ±5% tolerance.
Q2. What power rating does it support?
1 watt.
Q3. Is it suitable for automotive applications?
Yes, it operates in high-temperature and high-noise environments.
Q4. What package type is used?
DO-41 (Through Hole).
Q5. Where can I buy this with international shipping?
You can buy it from www.xonelec.com, with delivery to USA, India, Australia, Europe, and other countries.