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Fairchild MMSZ4702 Zener Data Handbook

Summary

A datasheet for the MMSZ4702 half-watt surface mount Zener diode from Fairchild Semiconductor. The device provides general-purpose voltage regulation in a compact SOD-123 package with the same footprint as mini-melf, featuring 500mW power dissipation rating, Class 3 ESD protection exceeding 16kV, and nominal Zener voltage of 15.0V at 50µA. The manual covers absolute maximum ratings, electrical characteristics including Zener voltage tolerance, reverse leakage, and forward voltage, along with package dimensions. Intended for electronics engineers designing voltage reference, surge protection, and clamping circuits in space-constrained applications.

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SZ4702

MMSZ4702

General Description Features Half watt, General purpose, Medium Current Surface Compact surface mount with same footprint as mini-melf Mount Zener in the SOD-123 package. The SOD-123 500m W rating on FR-4 or FR-5 board. package has the same footprint as the glass mini-melf (LL- Class 3 ESD rating (>16k V) per Human Body Model 34) package & provides a convenient alternative to the leadless package.

Ordering 7 inch reel (178mm); 8mm Tape; 3,000 units per reel.

Absolute Maximum Ratings (note 1) TA=25°C unless otherwise noted Symbol Parameter Value Units TSTG Storage Temperature -55 ~ 150 °C

TJ Maximum Junction Temperature -55 ~ 150 °C PD Total Power Dissipation at 25°C m W Derate above 25°C 6.7 m W/°C

RQJA Thermal Resistance Junction to Ambient °C/W

RQJL Thermal Resistance Junction to Lead °C/W

∆VZ Maximum Voltage Change (Note 2) m V Lead Solder Temperature (Max 10 second duration) °C

Nominal Zener Voltage (VZ) at 50µA 15.0

Note 1: These ratings are limiting values above which the serviceability of any semiconductor device may be impaired. Note 2: Voltage change is equal to the difference between VZ at 100µA and VZ at 10µA.

Top Mark: DM 1: Cathode 2: Anode

Electrical Characteristics TA=25°C unless otherwise noted Symbol Characteristics Test Conditions Min. Max. Units VZ Zener Voltage IZT = 50µA D.C 14.25 15.75

IR Reverse Leakage VR = 11.4V n A VF Forward Voltage IF = 10m A m V

∆VZ Delta Zener Voltage (Note 2) IZT = 100µA to 10µA m V

©2003 Fairchild Semiconductor Corporation MMSZ4692, Rev. A

Page Summary Contents For Fairchild MMSZ4702 Zener Data Handbook

Page 1 SZ4702 MMSZ4702 General Description Features Half watt, General purpose, Medium Current Surface Compact surface mount with same footprint as mini-melf Mount Zener in the SOD-123 package. The SOD-123 5...
Page 2 SZ4702 SOD-123 PACKAGE PACKAGE CODE = (D6) Fairchild Semiconductor's Criteria Corrected March 11, 1998 Actual Size MIN MAX MIN MAX DIM (mils) (mils) (mm) (mm) 1.2 2 mm 48 mils 0.91 mm 2.36 mm 0.91 mm ...
Page 3 TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ACEx™ FACT...

Manual Details

Brand Fairchild
Pages 3
File Size 33.98 KB
Published June 17, 2026
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Frequently Asked Questions

What is the power rating of the MMSZ4702?

The MMSZ4702 has a total power dissipation rating of 500mW at 25°C.

What package does this Zener diode come in?

It comes in a surface mount SOD-123 package, with a footprint matching a mini-melf.

What is the nominal Zener voltage?

The nominal Zener voltage (V_Z) at 50μA is 15.0 Volts.