Editing: D_SMA (DO-214AC)

Field: AI Skill Technical Reference

# D_SMA (DO-214AC)

**Package:** D_SMA
**Library:** Diode_SMD
**Category:** Diode
**Pads:** 2
**Pitch:** N/A
**Body Size:** 4.3 x 2.6mm
**Mounting:** Surface Mount

## Description

The SMA (DO-214AC) is the standard surface-mount diode package for medium-power applications. With a 4.3 x 2.6mm body, it handles up to 2A continuous current and is used extensively for rectifier diodes, Schottky diodes, TVS protection diodes, and Zener voltage references. The polarized pad layout with clear cathode marking makes assembly straightforward. A ubiquitous footprint found on virtually every PCB with power conversion or protection circuitry.

## Usage Notes

- Designed for reflow soldering (paste stencil recommended)
- Pad size optimized for standard components
- Follow IPC-7351 land pattern guidelines

## KiCad Library Reference

This footprint is from the official KiCad `Diode_SMD` library.
Full identifier: `Diode_SMD:D_SMA`

To use in your project:
1. Open the Footprint Library Manager in KiCad
2. Search for `D_SMA`
3. Assign to your schematic symbol in the Symbol Properties dialog

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