MMSZ5242BQ AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

MMSZ5242BQ product

MMSZ5242BQ

Diodes

12 V Zener diodeSOD-123AEC-Q101500 mWAutomotive

MMSZ5242BQ is an AEC-Q101 qualified 12 V nominal Zener diode in an SOD-123 package, intended for general regulation and voltage-clamping functions.

Best for

  • 12 V nominal voltage regulation
  • Automotive electronic circuits requiring AEC-Q101 qualification
  • General-purpose voltage clamping

Avoid if

  • A tightly regulated 12 V output is required across a very low-current range
  • Continuous dissipation exceeds the derated 500 mW rating
  • Lifecycle confirmation is required before BOM release

Check before use

  • 11.4 V to 12.6 V Zener-voltage tolerance at 20 mA
  • Maximum Zener current and thermal derating
  • SOD-123 land pattern and cathode orientation

Key specifications

Zener voltage
12 V typ. at 20 mA
Zener-voltage range
11.4 V to 12.6 V
Power dissipation
500 mW at Ta=25°C
Package
SOD-123
Qualification
AEC-Q101

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
1
ECCN
-
HTSUS
-

Application

Automotive voltage regulationVoltage clamping circuitsGeneral electronic regulation

CAD Models

Download ECAD models for MMSZ5242BQ: 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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Alternative components

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

Design and risk insights

Questions & answers

MMSZ5242BQ is a small-signal, 12 V nominal Zener diode from Yangjie. The Q suffix denotes AEC-Q101 qualification. It is supplied in an SOD-123 surface-mount package.