# 17-21UYC

**Everlight Elec** · LED Indication - Discrete · 0805

17-21UYC from Everlight Elec, in a 0805. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.


::adom-states{src="/adom/17-21uyc/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Cathode | power_in | Negative lead marked with cathode mark; ground return path. |
| 2 | A | input | Positive lead; accepts forward voltage 1.7-2.4 V with forward current up to 25 mA maximum. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Everlight Elec |
| Package | 0805 |
| Category | Optoelectronics |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `17-21UYC`
- Footprint: `LED_SMD:LED_0805_2012Metric`
- 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files: `17-21uyc-etched.step` / `17-21uyc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `17-21uyc.step` / `17-21uyc.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Everlight Elec datasheet](https://www.everlighteurope.com/custom/files/datasheets/DSE-0025600.pdf) (10 pp, sha256 `8d045489f704682f`, retrieved 2026-10-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/17-21uyc-datasheet.pdf)