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1SMA4746 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

1SMA4746 product

1SMA4746

Diodes - Zener - Single

Zener Diode1W18VSMA

The 1SMA4746 is a 1W, 18V Zener diode in an SMA package, suitable for voltage regulation and clipping in surface-mount designs.

Best for

  • Voltage stabilization
  • Signal clipping

Avoid if

  • Applications requiring extremely tight voltage tolerance below 5%

Check before use

  • Thermal derating curve above 50°C

Key specifications

Nominal Zener Voltage
18 V
Power Rating
1 W
Package
SMA (DO-214AC)

Compliance & Environment

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

Application

Power SuppliesGeneral Circuit Protection

Datasheet

c32f285225e268fe3a1a2e56e4a733f5_pdf.php.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for 1SMA4746: 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

It is a silicon planar power Zener diode with a 1W power rating and 18V nominal Zener voltage, packaged in a surface-mount SMA (DO-214AC) format.