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1SMA4728A AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

1SMA4728A product

1SMA4728A

Diodes

Zener Diode1W3.3VSMA

The 1SMA4728A is a 1W Zener diode in an SMA surface-mount package, providing a nominal 3.3V regulation voltage.

Best for

  • Voltage regulation
  • Transient voltage suppression

Avoid if

  • Applications requiring extremely low leakage current
  • High-power circuits exceeding 1W dissipation

Check before use

  • Thermal derating requirements above 50°C

Key specifications

Nominal Zener Voltage
3.3 V
Power Dissipation
1 W
Zener Impedance
10 Ω

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power SuppliesConsumer Electronics

Datasheet

13fa912f2f3a54a867f09c7c08457051_2309150915_GOODWORK-1SMA4728A_C17702901.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for 1SMA4728A: 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

The 1SMA4728A is a surface-mount Zener diode from MDD, designed for voltage regulation and transient suppression with a nominal Zener voltage of 3.3V and a power rating of 1W.