MMSZ5229B AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

MMSZ5229B product

MMSZ5229B

Diodes - Zener - Single

Zener Diode4.3VSOD-123500mW

The MMSZ5229B is a reliable 4.3V, 500mW Zener diode in a SOD-123 package, suitable for general-purpose voltage regulation and protection.

Best for

  • Voltage regulation
  • Overvoltage protection

Avoid if

  • Applications requiring high power dissipation exceeding 500mW

Check before use

  • Thermal dissipation requirements in the PCB layout

Key specifications

Nominal Zener Voltage
4.3 V
Power Dissipation
500 mW
Max Zener Impedance
22 Ω

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
REACH Unaffected
MSL
1 (Unlimited)
ECCN
EAR99
HTSUS
8541.10.0050

Application

Power SuppliesGeneral Protection

CAD Models

Download ECAD models for MMSZ5229B: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Where to Buy

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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

The MMSZ5229B is a surface-mount silicon Zener diode with a nominal Zener voltage of 4.3V and a power dissipation capacity of 500mW.