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MMSZ5248 from ON,ON Semiconductor

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MMSZ5248

Manufacturer: ON

Zener Diodes

Partnumber Manufacturer Quantity Availability
MMSZ5248 ON 10665 In Stock

Description and Introduction

Zener Diodes # Introduction to the MMSZ5248 Zener Diode  

The **MMSZ5248** is a surface-mount Zener diode designed for voltage regulation and protection in electronic circuits. As part of the **MMSZ series**, it offers precise voltage stabilization with a nominal Zener voltage of **18V** and a power dissipation rating of **500mW**, making it suitable for low-power applications.  

This diode operates in the reverse breakdown region, maintaining a stable voltage across its terminals even with fluctuations in current. Its compact **SOD-123 package** ensures space efficiency, making it ideal for modern PCB designs where miniaturization is crucial.  

Key features of the MMSZ5248 include:  
- **Zener Voltage (Vz):** 18V (typical)  
- **Power Dissipation (Ptot):** 500mW  
- **Tolerance:** ±5%  
- **Operating Temperature Range:** -65°C to +150°C  

Common applications include **voltage clamping, surge protection, and voltage reference circuits** in consumer electronics, automotive systems, and industrial controls. Its fast response time helps safeguard sensitive components from voltage spikes, enhancing circuit reliability.  

Engineers favor the MMSZ5248 for its consistent performance, low leakage current, and robust construction. When selecting this component, designers should consider load requirements, thermal management, and voltage stability to ensure optimal operation.  

In summary, the MMSZ5248 is a reliable and efficient Zener diode, well-suited for precision voltage regulation in compact electronic designs.

Application Scenarios & Design Considerations

Zener Diodes

Alternative Part Number

  • BZT52C18 --: 18V zener in SOD-123 with similar power rating and tolerance, widely available and pin-compatible.
  • 1N4746A --: 18V 1W zener diode offering higher power margin, suitable replacement where board space allows DO-41 package.
  • MMSZ5248B --: Same 18V zener voltage and SOD-123 package from an alternate vendor, drop-in compatible with tighter tolerance.

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