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1SMA4742H AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

1SMA4742H product

1SMA4742H

Zener

Zener Diode12V1WSMA

The 1SMA4742H is a 12V, 1W Zener diode in an SMA package, ideal for general-purpose voltage regulation and circuit protection.

Best for

  • Voltage regulation
  • Circuit protection

Avoid if

  • Applications requiring power dissipation significantly above 1W

Check before use

  • Thermal derating based on PCB layout

Key specifications

Nominal Zener Voltage
12 V
Power Dissipation
1 W
Test Current
21 mA
Package
DO-214AC (SMA)

Compliance & Environment

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

Application

General RegulationProtection

Datasheet

6c1fd939c6d251dcdca363ccc0e267f0_2301040930_Taiwan-Semiconductor-1SMA4742H_C5345786.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for 1SMA4742H: 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 glass-passivated surface-mount Zener diode with a nominal Zener voltage of 12V and a power dissipation rating of 1W.