# SZYY0603B

**Yongyu Photoelectric** · LED Indication - Discrete · 0603

SZYY0603B from Yongyu Photoelectric, in a 0603. 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/szyy0603b/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode (-) of the blue LED, on the end with the green polarity mark in the page 2 drawing; the reverse voltage across the LED must not exceed 5 V (IR max 5 uA at VR = 5 V). |
| 2 | A | passive | Anode (+) of the blue LED, marked "+" on the page 2 drawing; DC forward current max 30 mA, peak 60 mA (1/10 duty, 0.1 ms), VF 2.6 to 3.1 V at IF = 5 mA, so a series current-limiting resistor is required. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Yongyu Photoelectric |
| Package | 0603 |
| Category | Optoelectronics |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `SZYY0603B`
- Footprint: `LED_SMD:LED_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `szyy0603b-etched.step` / `szyy0603b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `szyy0603b.step` / `szyy0603b.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Yongyu Photoelectric datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588919307577266176) (11 pp, sha256 `c8b25f27f066b940`, retrieved 2026-10-07, 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 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/szyy0603b-datasheet.pdf)