6/10/2025 5:27:43 PM   By  Andrew  in



BZX85C12_T50A Zener Diodes by ON Semiconductor – 12V Regulation for Precision Circuit Protection

The Zener Diodes BZX85C12_T50A  by ON Semiconductor are high-reliability components designed for 12V voltage regulation and protection in a range of electronics applications. With their stable breakdown voltage, 1.3W power rating, and robust axial-leaded DO-41 package, these diodes are widely trusted in automotive systems, industrial equipment, and general-purpose power supplies.

In this blog, we’ll cover the technical specifications, key benefits, use cases, wiring configuration, and why buying Zener Diodes by ON Semiconductor from Xon Electronics ensures high-quality performance for your designs.


Technical Specifications of BZX85C12_T50A

  • Manufacturer: ON Semiconductor

  • Part Number: BZX85C12_T50A

  • Type: Zener Diode

  • Zener Voltage (Vz): 12V

  • Power Dissipation: 1.3W

  • Voltage Tolerance: ±5%

  • Package Type: DO-41 (Axial-Lead)

  • Zener Impedance: 30O

  • Reverse Leakage Current: =0.25µA @ 9.1V

  • Category: Diodes, Zener Diodes

With precise voltage regulation and a durable package, this component is ideal for professional-grade circuit protection.


Key Features of BZX85C12_T50A Zener Diode

  • 12V Nominal Zener Voltage – Great for voltage reference and clamping

  • 1.3W Power Rating – Supports moderate-load designs

  • Axial DO-41 Package – Easy through-hole PCB mounting

  • Low Reverse Leakage – Minimizes power loss and improves accuracy

  • Broad Operating Temperature Range – Suitable for automotive and industrial use

These characteristics make Zener Diodes by ON Semiconductor reliable for engineers building long-lasting electronic systems.


Applications of BZX85C12_T50A

The BZX85C12_T50A Zener Diodes by ON Semiconductor are commonly used in:

  • Voltage Reference Circuits

  • Surge Suppression Systems

  • Power Supply Regulation

  • Microcontroller Input Protection

  • Automotive Electronics

  • Signal Conditioning and Clamping

Where consistent 12V regulation is required, Zener Diodes by ON Semiconductor ensure optimal system performance.


Wiring and Connection Overview

Typical Zener diode regulation setup:

[Input Voltage] ? Resistor ? Zener Diode (Cathode to Input, Anode to Ground) ? [Load Across Zener]

This arrangement allows the Zener to clamp the voltage at 12V, protecting downstream components.


Use Case Scenario: Automotive Sensor Protection

Scenario: An automotive electronics manufacturer needed a compact solution to protect analog sensor inputs from voltage surges.

Problem: Input channels experienced damage from transient spikes during engine start and shutdown.

Solution: Engineers used BZX85C12_T50A Zener Diodes by ON Semiconductor across each sensor input to clamp excess voltage.

Result: Significantly improved sensor reliability and extended system life in harsh automotive environments.


Download Datasheet for BZX85C12_T50A

Need electrical curves, test conditions, or mechanical drawings?

Download BZX85C12_T50A Datasheet from Xon Electronics


Why Buy from Xon Electronics?

Get genuine Zener Diodes by ON Semiconductor and more from a source you can trust:

  • 100% Original ON Semiconductor Components
  • Global Shipping – USA, India, Australia, Europe & beyond
  • OEM Bulk Discounts
  • Application Support for Integration
  • Safe and Secure Online Checkout

Visit www.xonelec.com and buy with confidence today.


Conclusion

The BZX85C12_T50A Zener Diodes by ON Semiconductor are compact, powerful, and dependable. With their 12V voltage regulation and solid DO-41 package, they provide excellent protection and reference stability for sensitive circuits. Order now from Xon Electronics and ensure your electronics stay protected—wherever in the world you build.


FAQs – BZX85C12_T50A Zener Diode

Q1. What is the Zener voltage of this part?
It regulates at 12V with ±5% tolerance.

Q2. What is the power rating of BZX85C12_T50A?
It handles up to 1.3W.

Q3. Is this diode suitable for automotive use?
Yes, it has a wide operating temperature and rugged build.

Q4. Can I use this for reverse polarity protection?
It can clamp voltage spikes but is not a substitute for a full reverse protection circuit.

Q5. Where can I buy this globally?
You can purchase from www.xonelec.com with shipping to USA, India, Australia, Europe, and more.


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6/9/2025 10:25:08 AM   By  Andrew  in

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

  • Manufacturer: ON Semiconductor

  • Part Number: 1N4749ATR

  • Type: Zener Diode

  • Zener Voltage (Vz): 24V

  • Power Dissipation: 1W

  • Mounting Type: Through Hole (DO-41 Package)

  • Zener Tolerance: ±5%

  • Max Zener Impedance: 30 Ohms @ 9.5mA

  • Operating Temperature: -65°C to +200°C

  • 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

  • Stable 24V Regulation – Maintains voltage levels across varying loads

  • 1W Power Rating – Ideal for medium-power applications

  • DO-41 Package – Industry-standard format for easy integration

  • Wide Operating Range – Withstands harsh environmental conditions

  • 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:

  • Voltage Reference Circuits

  • Power Supply Protection

  • Battery Chargers and DC-DC Converters

  • Automotive Electronics

  • LED Drivers and Lighting Systems

  • 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.




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