ProjectsPricingInsights

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

AI summary

1SMA4728A product

1SMA4728A

Diodes - Zener - Single

Zener Diode1WSMAVoltage Regulation

The 1SMA4728A is a 1W surface-mount Zener diode with a 3.3V nominal Zener voltage, housed in an SMA (DO-214AC) package.

Best for

  • Voltage regulation
  • Overvoltage protection

Avoid if

  • High-power applications exceeding 1W
  • Extreme temperature environments outside -55°C to +150°C

Check before use

  • Thermal derating requirements
  • PCB footprint compatibility

Key specifications

Nominal Zener Voltage
3.3 V
Power Dissipation
1 W
Package
SMA (DO-214AC)

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Voltage RegulationOvervoltage Protection

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
Schematic symbol for your EDA tool
Get Files
PCB Footprint
Land pattern for PCB layout
Get Files
3D Model
STEP file for mechanical design
Get Files
KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
Generate library

Login required · CAD models billed separately as an add-on

Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

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 Zener diode designed for voltage regulation, featuring a 1W power dissipation rating and a 3.3V nominal Zener voltage.