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1SMA4746A AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

1SMA4746A product

1SMA4746A

Diodes - Zener - Single

Zener Diode1W18VSMA

The 1SMA4746A is a standard 1W, 18V Zener diode in an SMA package, ideal for general-purpose voltage regulation and circuit protection.

Best for

  • Voltage regulation
  • Overvoltage protection

Avoid if

  • High-power applications exceeding 1W
  • Space-constrained designs requiring smaller than SMA packages

Check before use

  • Thermal derating requirements
  • Polarity marking

Key specifications

Nominal Vz
18 V
Power Dissipation
1 W
Package
SMA (DO-214AC)

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
1
ECCN
-
HTSUS
-

Application

Power SuppliesIndustrial Control

Datasheet

f80a1065e598368b971bfc7761184b41_2407101109_MDD-Microdiode-Semiconductor-1SMA4746A_C173483.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for 1SMA4746A: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

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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 1-watt surface-mount Zener diode with a nominal Zener voltage of 18V, packaged in a standard DO-214AC (SMA) format.