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1SMA4731A AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

1SMA4731A product

1SMA4731A

Diodes

Zener Diode1W4.3VSMA

The 1SMA4731A is a 1W Zener diode in an SMA package, providing a stable 4.3V reference voltage for surface-mount circuit designs.

Best for

  • Voltage regulation
  • Overvoltage protection

Avoid if

  • Applications requiring precision voltage references better than 5% tolerance

Check before use

  • Thermal derating curve above 50°C

Key specifications

Nominal Zener Voltage
4.3 V
Power Dissipation
1 W
Package
SMA

Compliance & Environment

RoHS
Compliant
REACH
Compliant
MSL
-
ECCN
-
HTSUS
-

Application

Power SuppliesGeneral Electronics

Datasheet

09522e9c7f03d7c17b5db34a083390a7_2304140030_Shandong-Jingdao-Microelectronics-1SMA4731A_C438353.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for 1SMA4731A: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
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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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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

It is a 1W surface-mount Zener diode with a nominal breakdown voltage of 4.3V, housed in an SMA (DO-214AC) package.