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MMBZ5258BLT1 from ON,ON Semiconductor

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MMBZ5258BLT1

Manufacturer: ON, MOTOROLA

SEMICONDUCTOR

Partnumber Manufacturer Quantity Availability
MMBZ5258BLT1 ON, MOTOROLA 5604 In Stock

Description and Introduction

SEMICONDUCTOR # Introduction to the MMBZ5258BLT1 Zener Diode  

The **MMBZ5258BLT1** is a surface-mount Zener diode designed for voltage regulation and protection in electronic circuits. As part of the **SOD-523** package family, it offers a compact footprint, making it suitable for space-constrained applications such as portable devices, consumer electronics, and automotive systems.  

This component features a **5.6V nominal Zener voltage (Vz)** with a tight tolerance, ensuring stable performance in precision voltage reference and clamping applications. Its low leakage current and reliable breakdown characteristics make it ideal for protecting sensitive circuitry from voltage spikes and transient events.  

Key specifications of the MMBZ5258BLT1 include:  
- **Zener Voltage (Vz):** 5.6V (typical)  
- **Power Dissipation:** 350mW  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package Type:** SOD-523 (SC-79)  

Engineers often use this diode in power supply circuits, signal conditioning, and ESD protection due to its fast response time and robust construction. Its small form factor and compatibility with automated assembly processes enhance its usability in high-volume manufacturing.  

For optimal performance, designers should consider thermal management and ensure proper current limiting to avoid exceeding the diode’s power rating. The MMBZ5258BLT1 provides a cost-effective and reliable solution for maintaining voltage stability in modern electronic designs.  

By leveraging its precise voltage regulation and protective capabilities, the MMBZ5258BLT1 serves as a critical component in ensuring circuit reliability across various industries.

Application Scenarios & Design Considerations

SEMICONDUCTOR

Alternative Part Number

  • BZX84C36LT1G --: 36 V zener in the same SOT-23 package with comparable power rating, widely available and pin-compatible.
  • MMSZ5258BT1G --: Same 36 V zener voltage and SOD-123 package family, suitable drop-in for many layouts with similar tolerance.
  • 1N4753A --: 36 V, 1 W axial-lead zener that can replace the part in through-hole or leaded designs with adequate power margin.
  • BZX84C36 --: 36V zener in SOT-23 with similar power rating, widely available and a common cross for MMBZ5258B.
  • MMSZ5258B --: Same 36V zener voltage and SOT-23 package from a different series, direct functional replacement.
  • 1N5258B --: Axial-lead 36V zener with equivalent electrical characteristics, suitable if board layout allows through-hole parts.

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