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MMSZ5250BT1 from ON,ON Semiconductor

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MMSZ5250BT1

Manufacturer: ON, MOTO

Plastic surface mount zener diode 500 milliwatts

Partnumber Manufacturer Quantity Availability
MMSZ5250BT1 ON, MOTO 13339 In Stock

Description and Introduction

Plastic surface mount zener diode 500 milliwatts **Introduction to the MMSZ5250BT1 Zener Diode**  

The MMSZ5250BT1 is a surface-mount Zener diode designed for voltage regulation and protection in electronic circuits. With a nominal Zener voltage of 5.1V and a power dissipation rating of 500mW, this component is widely used in applications requiring precise voltage clamping, such as power supplies, signal conditioning, and overvoltage protection.  

Encased in a compact SOD-123 package, the MMSZ5250BT1 offers excellent thermal performance and reliability, making it suitable for space-constrained designs. Its low leakage current and sharp breakdown characteristics ensure stable operation under varying load conditions. Additionally, the diode features a tight tolerance on Zener voltage, enhancing its performance in precision circuits.  

Key specifications include a maximum reverse current of 5µA at the working voltage and an operating temperature range of -65°C to +150°C, ensuring robustness in harsh environments. The MMSZ5250BT1 is also RoHS compliant, meeting modern environmental standards.  

Common applications include voltage reference circuits, transient suppression, and as a protective element in sensitive electronic components. Its small footprint and high efficiency make it a preferred choice for consumer electronics, automotive systems, and industrial controls.  

Engineers and designers value the MMSZ5250BT1 for its consistent performance, durability, and ease of integration, making it a versatile solution for voltage regulation needs.

Application Scenarios & Design Considerations

Plastic surface mount zener diode 500 milliwatts

Alternative Part Number

  • BZT52C20 --: 20V 500mW zener in SOD-123, same voltage and package as the MMSZ5250B, widely available and a common drop-in replacement.
  • 1N4747A --: 20V 1W zener diode with higher power rating, suitable where extra margin is acceptable; axial package requires layout change.
  • MMSZ5250B --: Same 20V 500mW SOD-123 zener from an alternate manufacturer, electrically equivalent but different brand and series naming.
  • CZRW5250B --: Direct 20V 500mW zener in SOD-123 with equivalent electrical characteristics, suitable drop-in replacement for the MMSZ5250B.

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