What are the key specifications of the 1N4004?

Key specs include a 1A average forward current, 400V maximum DC blocking voltage, 1.1V forward voltage drop, and a 30A peak forward surge current.

What should engineers review before using the 1N4004?

Engineers should verify the peak reverse voltage (Vrrm) and ensure the thermal design (RθJA) is adequate for the intended operating environment.

What are the sourcing risks for the 1N4004?

The 1N4004 is a commodity component with high availability and multiple manufacturers, presenting very low sourcing risk.

What is the pinout of 1N4004?

Use the 1N4004 datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about 1N4004 pinout to locate pins, power rails, and interface signals before layout.

1N4004 Datasheet, Specs, Alternatives & ECAD | TWGMC

AI summary

The 1N4004 is a reliable 1A, 400V surface-mount general-purpose rectifier diode in an SMA package.

Best for

General purpose power rectification
AC-to-DC conversion
Consumer electronics

Avoid if

High-frequency switching applications (use Schottky or Fast Recovery diodes instead)
Applications requiring >1A continuous current

Check before use

Peak reverse voltage requirements
Thermal dissipation on the PCB

Key specifications

Reverse Voltage: 400 V
Forward Current: 1 A
Forward Voltage: 1.1 V

Compliance & Environment

RoHS: Compliant
REACH: -
MSL: -
ECCN: -
HTSUS: -

Application

Power SuppliesConsumer Electronics

Datasheet

4a62b356522d780520686c0b08c6126b.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for 1N4004: 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

Where to Buy

Real-time and catalog pricing from verified distributors

Alternative components

Part	Details	Match
S2MMDD	S2M matches SMA size and exceeds 1N4004 V/I ratings, with pinout and full datasheet checks still needed.	Needs validation

Design and risk insights

Questions & answers

The 1N4004 is a surface-mount general-purpose rectifier diode with a 1A forward current and 400V reverse voltage rating, commonly used in power rectification.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the 1N4004?+×

What are the key specifications of the 1N4004?+×

What should engineers review before using the 1N4004?+×

What are the sourcing risks for the 1N4004?+×

What is the pinout of 1N4004?+×