IC Phoenix logo

Home ›  M  › M151 > MMSZ4689

MMSZ4689 from DIODES

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

MMSZ4689

Manufacturer: DIODES, FAIRCHILD

5.1V, 0.5W Zener Diode

Partnumber Manufacturer Quantity Availability
MMSZ4689 DIODES, FAIRCHILD 7690 In Stock

Description and Introduction

5.1V, 0.5W Zener Diode **Introduction to the MMSZ4689 Zener Diode**  

The MMSZ4689 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 3.3V and a power dissipation rating of 500mW. Its compact SOD-123 package makes it suitable for space-constrained applications, including consumer electronics, automotive systems, and industrial control modules.  

Key features of the MMSZ4689 include a low dynamic impedance, ensuring stable performance under varying load conditions, and a sharp breakdown characteristic for reliable voltage clamping. With a tolerance of ±5% on the Zener voltage, it provides consistent regulation for sensitive components. Additionally, its fast response time makes it effective in transient voltage suppression (TVS) applications, protecting circuits from voltage spikes and surges.  

The diode operates efficiently within a temperature range of -65°C to +150°C, making it resilient in harsh environments. Its lead-free and RoHS-compliant construction aligns with modern environmental standards.  

Engineers often integrate the MMSZ4689 in power supplies, signal conditioning circuits, and overvoltage protection mechanisms. Its balance of performance, reliability, and compact form factor makes it a versatile choice for both prototyping and mass production.  

For optimal performance, designers should consider forward voltage drop, leakage current, and thermal management in their circuit layouts. Proper selection ensures the MMSZ4689 delivers efficient voltage regulation while safeguarding downstream components.

Application Scenarios & Design Considerations

5.1V, 0.5W Zener Diode

Alternative Part Number

  • BZT52C5V1 --: 5.1V zener in the SOD-123 package with similar power rating, widely available and a common substitute for 5.1V zener regulation.
  • 1N4733A --: Classic 5.1V 1W zener diode in DO-41, a robust through-hole alternative when board space allows and higher power margin is acceptable.
  • MMSZ5231B --: 5.1V zener in SOD-123 with comparable tolerance and power rating, offering a direct surface-mount functional replacement.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips