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MMSZ5266BT1G from ON/LRC,ON Semiconductor

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MMSZ5266BT1G

Manufacturer: ON/LRC, ON

100VIN Micropower Isolated Flyback Converter with 150V/260mA Switch

Partnumber Manufacturer Quantity Availability
MMSZ5266BT1G ON/LRC, ON 121800 In Stock

Description and Introduction

100VIN Micropower Isolated Flyback Converter with 150V/260mA Switch # Introduction to the MMSZ5266BT1G Zener Diode  

The **MMSZ5266BT1G** is a surface-mount Zener diode designed for voltage regulation and protection in electronic circuits. As part of the **SOD-123** package family, it offers a compact footprint, making it suitable for space-constrained applications such as consumer electronics, automotive systems, and industrial controls.  

This diode features a **5.6V nominal Zener voltage (VZ)** with a tight tolerance, ensuring stable voltage clamping and regulation. Its low dynamic impedance and fast response time enhance performance in transient voltage suppression (TVS) and overvoltage protection scenarios. With a **500mW power dissipation rating**, the MMSZ5266BT1G provides reliable operation in low-power circuits.  

Key characteristics include:  
- **Zener Voltage (VZ):** 5.6V (typical)  
- **Power Dissipation (PD):** 500mW  
- **Package Type:** SOD-123 (small outline diode)  
- **Operating Temperature Range:** -65°C to +150°C  

The MMSZ5266BT1G is commonly used in voltage reference circuits, power supply protection, and signal conditioning. Its robust construction ensures durability in harsh environments, while its lead-free and RoHS-compliant design aligns with modern environmental standards.  

Engineers favor this component for its balance of performance, size, and cost-effectiveness, making it a versatile choice for both prototyping and mass production. Whether for precision voltage regulation or safeguarding sensitive components, the MMSZ5266BT1G delivers consistent and dependable performance.

Application Scenarios & Design Considerations

100VIN Micropower Isolated Flyback Converter with 150V/260mA Switch

Alternative Part Number

  • BZT52C68 --: 68V zener in SOD-123 with similar power rating, widely available and a common cross for MMSZ5266B.
  • 1N5266B --: Axial-lead 68V zener with the same 500mW class rating; suitable where board space allows leaded parts.
  • CZ5266B --: 68V 500mW zener diode offering comparable voltage tolerance and power handling as a functional replacement.
  • DDZ9703 --: 68V zener in SOD-123 with comparable tolerance and power rating, suitable drop-in replacement.
  • MMSZ5266B --: Same 68V zener specification in SOD-123 from an alternate vendor, offering equivalent electrical performance.

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