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1SMA4738_R1_00001 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

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1SMA4738_R1_00001 product

1SMA4738_R1_00001

Diodes - Zener - Single

Zener Diode1W8.2VSMASurface Mount

The 1SMA4738 is a 1W, 8.2V Zener diode in an SMA package, ideal for voltage regulation in compact surface-mount designs.

Best for

  • Voltage regulation
  • Overvoltage protection
  • General-purpose signal clamping

Avoid if

  • Applications requiring power dissipation significantly above 1W
  • Extremely high-precision voltage reference requirements

Check before use

  • Thermal dissipation on the PCB land area
  • Reverse leakage current at operating temperature

Key specifications

Nominal Voltage
8.2 V
Power Rating
1 W
Tolerance
±5%

Compliance & Environment

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

Application

Power SuppliesIndustrial Controls

Datasheet

pYYBAGGu_SqAAmzUAAncqfa2yrI911.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for 1SMA4738_R1_00001: 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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KiCad Library
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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 1SMA4738 is a surface-mount silicon Zener diode with a nominal voltage of 8.2V and a power rating of 1W, housed in a JEDEC DO-214AC (SMA) package.