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MMBZ5237B from ON,ON Semiconductor

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MMBZ5237B

Manufacturer: ON, MOTO

Surface nount zener diode. 350 mW. Nominal zen. Vltg @ Izt Vz 8.2 V. Test current 20.0 mA.

Partnumber Manufacturer Quantity Availability
MMBZ5237B ON, MOTO 234810 In Stock

Description and Introduction

Surface nount zener diode. 350 mW. Nominal zen. Vltg @ Izt Vz 8.2 V. Test current 20.0 mA. **Introduction to the MMBZ5237B Zener Diode**  

The MMBZ5237B is a surface-mount Zener diode designed for voltage regulation and protection in electronic circuits. As part of the small-signal diode family, it offers precise voltage clamping, making it suitable for applications requiring stable reference voltages or transient suppression.  

This component features a nominal Zener voltage of 8.2V with a tight tolerance, ensuring reliable performance in low-power circuits. Its compact SOD-123 package makes it ideal for space-constrained designs, such as portable electronics, power supplies, and communication devices. With a power dissipation rating of 350mW, the MMBZ5237B efficiently handles moderate power levels while maintaining thermal stability.  

Key characteristics include low leakage current and fast response times, which enhance its effectiveness in protecting sensitive components from voltage spikes. Engineers often integrate this diode into voltage reference circuits, overvoltage protection modules, and signal conditioning stages.  

The MMBZ5237B is compatible with automated assembly processes, supporting high-volume manufacturing. Its robustness and consistent performance make it a dependable choice for both consumer and industrial applications. When selecting a Zener diode for precise voltage regulation, the MMBZ5237B provides a balance of accuracy, efficiency, and compact form factor.  

For optimal performance, designers should consider operating conditions, including temperature ranges and current requirements, to ensure long-term reliability in their circuits.

Application Scenarios & Design Considerations

Surface nount zener diode. 350 mW. Nominal zen. Vltg @ Izt Vz 8.2 V. Test current 20.0 mA.

Alternative Part Number

  • BZX84C6V2 --: 6.2V zener in SOT-23 with similar tolerance and power rating, widely available and pin-compatible.
  • MMSZ5237B --: Same 6.2V zener voltage and SOT-23 package from a different series, direct functional replacement.
  • 1N5237B --: Axial-leaded 6.2V zener with equivalent electrical characteristics, suitable if package change is acceptable.
  • 1N4735A --: 6.2V 1W zener in DO-41 axial package, usable where through-hole mounting is acceptable and higher power margin is fine.

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