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MMSZ27T1 from ON,ON Semiconductor

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MMSZ27T1

Manufacturer: ON, MOTO

Zener Regulator

Partnumber Manufacturer Quantity Availability
MMSZ27T1 ON, MOTO 2243745 In Stock

Description and Introduction

Zener Regulator # Introduction to the MMSZ27T1 Zener Diode  

The **MMSZ27T1** is a surface-mount Zener diode designed for voltage regulation and protection in electronic circuits. As part of the MMSZ series, it provides precise voltage clamping, making it suitable for applications requiring stable reference voltages or transient suppression.  

This diode features a **27V nominal Zener voltage (Vz)** with a tight tolerance, ensuring reliable performance in voltage stabilization tasks. Its small **SOD-123 package** allows for efficient PCB space utilization, making it ideal for compact and high-density designs. With a **power dissipation rating of 500mW**, the MMSZ27T1 balances performance and thermal management in low-power applications.  

Key characteristics include a **low dynamic impedance** and a **sharp breakdown characteristic**, which enhance its efficiency in regulating voltage spikes. Common applications include:  
- **Voltage regulation** in power supplies  
- **Overvoltage protection** for sensitive ICs  
- **Signal clamping** in communication circuits  

The MMSZ27T1 is RoHS-compliant, ensuring adherence to environmental standards. Its robust construction and consistent performance make it a reliable choice for engineers designing precision circuits.  

For optimal results, designers should consider operating conditions such as temperature coefficients and current limitations to ensure long-term stability. Whether used in consumer electronics, industrial controls, or automotive systems, the MMSZ27T1 provides dependable voltage regulation in a compact form factor.

Application Scenarios & Design Considerations

Zener Regulator

Alternative Part Number

  • BZT52C27 --: 27V zener in SOD-123 with similar power rating and tolerance, direct functional replacement.
  • MMSZ5251B --: 27V zener diode in SOD-123 package, comparable voltage and power specifications.
  • 1N4750A --: 27V 1W zener diode, higher power rating provides margin though in DO-41 axial package.
  • MMSZ5252B --: 27V zener in SOD-123 with comparable tolerance and power dissipation, widely available and electrically equivalent.
  • DDZ27 --: 27V zener diode in SOD-123 offering similar voltage and current characteristics, suitable as an alternative.

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