# SZYY0402YG

**Yongyu Photoelectric** · LED Indication - Discrete · 0402

SZYY0402YG from Yongyu Photoelectric, in a 0402. 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/szyy0402yg/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode; pad 1 of the KiCad LED footprint. |
| 2 | A | passive | Anode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Yongyu Photoelectric |
| Package | 0402 |
| Category | Optoelectronics |
| Pins | 2 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reverse current | IR |  |  | 2 | µA | VR=5V | 3 |
| Luminous intensity | Iv | 48 |  | 58 | mcd |  | 3 |
| Wavelength | λd | 571 |  | 572 | nm |  | 3 |
| Forward voltage | Vf | 1.8 |  | 2.4 | V |  | 3 |
| Luminous intensity deviation |  | -10 |  | 10 | % |  | 3 |
| Forward voltage deviation |  | -0.1 |  | 0.1 | V |  | 3 |
| Wavelength deviation |  | -1 |  | 1 | nm |  | 3 |
| Forward current | IF |  |  | 30 | mA |  | 3 |
| Forward peak current | IFP |  |  | 60 | mA | Pulse width ≤0.1 msec, period ≤1/10 | 3 |
| Reverse voltage | VR |  |  | 5 | V |  | 3 |
| Operating temperature | Topr | -40 |  | 85 | °C |  | 3 |
| Storage temperature | Tstg | -40 |  | 85 | °C |  | 3 |
| Soldering temperature, reflow | Tsol |  |  | 250 | °C | Reflow soldering, 8 sec | 3 |
| Soldering temperature, hand soldering | Tsol |  |  | 300 | °C | Hand soldering, 3 sec | 3 |
| Viewing angle (half intensity) | 2Ɵ1/2 |  | 120 |  | deg | IF=20mA | 3 |

## CAD (KiCad official)

- Symbol: `SZYY0402YG`
- Footprint: `LED_SMD:LED_0402_1005Metric`
- 3D model: 0402 (KiCad packages3D, STEP)
- 3D model files: `szyy0402yg-etched.step` / `szyy0402yg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `szyy0402yg.step` / `szyy0402yg.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Yongyu Photoelectric datasheet](docs/szyy0402yg-datasheet.pdf) (8 pp, sha256 `8ee18272a987c9fe`, retrieved 2026-10-14, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `LED convention` (convention), consensus `off` (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/szyy0402yg-datasheet.pdf)