# SZYY1206B

**Yongyu Photoelectric** · LED Indication - Discrete · 1206

SZYY1206B from Yongyu Photoelectric, in a 1206. 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/szyy1206b/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode of the blue LED, at the bar end of the diode symbol in the internal circuit diagram; reverse voltage max 5 V. |
| 2 | A | passive | Anode (+) of the blue LED, marked with + in the internal circuit diagram; DC forward current max 30 mA, peak forward current 60 mA (1/10 duty, 0.1 ms). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Yongyu Photoelectric |
| Package | 1206 |
| 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 |
|---|---|---|---|---|---|---|---|
| Luminous Intensity | IV | 34 |  | 100 | mcd | IF = 5mA | 3 |
| Dominant Wavelength | λd | 460 |  | 475 | nm | IF = 5mA | 3 |
| Peak Wavelength | λp | 463 |  | 469 | nm | IF = 5mA | 3 |
| Forward Voltage | VF | 2.6 |  | 3.1 | V | IF = 5mA | 3 |
| Reverse Current | IR |  |  | 5 | μA | VR = 5V | 3 |
| Power Dissipation | Pd |  |  | 100 | mW | Ta=25℃ | 3 |
| Peak Forward Current | IFP |  |  | 60 | mA | 1/10 duty cycle, 0.1ms pulse width | 3 |
| DC Forward Current | IF |  |  | 30 | mA | Ta=25℃ | 3 |
| Backward Voltage | VR |  |  | 5 | V | Ta=25℃ | 3 |
| Operating Temperature Range | Topr | -40 |  | 85 | °C |  | 3 |
| Storage Temperature Range | Tstg | -40 |  | 85 | °C |  | 3 |
| Soldering Temperature (reflow) | Tsol |  |  | 260 | °C | Reflow soldering, 10 s | 3 |
| Soldering Temperature (hand) | Tsol |  |  | 300 | °C | Hand soldering, 3 s | 3 |

## CAD (KiCad official)

- Symbol: `SZYY1206B`
- Footprint: `LED_SMD:LED_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `szyy1206b-etched.step` / `szyy1206b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `szyy1206b.step` / `szyy1206b.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/8588935055846068224) (11 pp, sha256 `de8100ce43f2f5f9`, retrieved 2026-10-16, 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/szyy1206b-datasheet.pdf)