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MMSZ5242BT1 from ON,ON Semiconductor

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MMSZ5242BT1

Manufacturer: ON, MOTO

Plastic surface mount zener diode 500 milliwatts

Partnumber Manufacturer Quantity Availability
MMSZ5242BT1 ON, MOTO 70985 In Stock

Description and Introduction

Plastic surface mount zener diode 500 milliwatts # Introduction to the MMSZ5242BT1 Zener Diode  

The **MMSZ5242BT1** 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 component features a **5.1V nominal Zener voltage (VZ)** with a tolerance of ±5%, ensuring reliable performance in low-power circuits. Its compact **SOD-123 package** allows for efficient PCB space utilization, making it ideal for modern, miniaturized designs. With a **power dissipation rating of 500mW**, the MMSZ5242BT1 is well-suited for consumer electronics, power supplies, and communication devices where overvoltage protection is critical.  

Key characteristics include a **low dynamic impedance** and **sharp breakdown characteristics**, enhancing its efficiency in voltage stabilization. Additionally, its fast response time makes it effective in protecting sensitive components from voltage spikes and ESD events.  

Engineers often integrate the MMSZ5242BT1 in **voltage reference circuits, voltage clamping, and surge protection** applications. Its robust construction and consistent performance under varying conditions make it a dependable choice for both industrial and commercial electronics.  

When selecting a Zener diode for precise voltage regulation, the **MMSZ5242BT1** offers a balance of accuracy, compactness, and reliability, meeting the demands of modern electronic designs.

Application Scenarios & Design Considerations

Plastic surface mount zener diode 500 milliwatts

Alternative Part Number

  • BZT52C12 --: 12V zener in SOD-123 with similar 500mW rating, a common cross for the MMSZ5242B.
  • 1N4742A --: 12V 1W zener in DO-41, electrically equivalent voltage with higher power margin.
  • MMSZ5242B --: Same 12V zener specification in SOD-123 from an alternate vendor, different series prefix.

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