# SZYY0603R1

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

SZYY0603R1 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/szyy0603r1/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode of the red LED, at the end with the notch and green marker on the drawing; reverse voltage must not exceed 5 V (VR max 5 V, IR max 5 µA). |
| 2 | A | passive | Anode (+) of the red LED, marked "+" on the package drawing; drive through a series current-limiting resistor at IF = 20 mA typical test current (DC forward current max 25 mA, peak 60 mA at 1/10 duty, 0.1 ms). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Yongyu Photoelectric |
| Package | 0603 |
| 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 |
|---|---|---|---|---|---|---|---|
| Light Intensity | IV | 145 |  | 300 | mcd | IF = 20mA | 3 |
| Forward Voltage | VF | 1.8 | 2.4 |  | V | IF = 20mA | 3 |
| Backward Voltage (Reverse Current) | IR |  |  | 5 | μA | VR = 5V | 3 |
| Dominant Wavelength | λd | 615 | 630 |  | nm | IF = 20mA | 3 |
| Peak Wavelength | λp | 625 | 645 |  | nm | IF = 20mA | 3 |
| Viewing Angle | 2θ1/2 |  | 120 |  | deg | IF = 20mA | 3 |
| Spectral Line Half-Width | Δλ |  | 20 |  | nm | IF = 20mA | 3 |
| Power Dissipation | Pd |  |  | 40 | mW | Ta=25°C | 3 |
| Peak Forward Current | IFP |  |  | 60 | mA | 1/10 duty cycle, 0.1 ms pulse width | 3 |
| DC Forward Current | IF |  |  | 25 | mA |  | 3 |
| Backward Voltage | VR |  |  | 5 | V |  | 3 |
| Operating Temperature Range | Topr | -40 |  | 85 | °C |  | 3 |
| Storage Temperature Range | Tstg | -40 |  | 85 | °C |  | 3 |
| Reflow Soldering Temperature | Tsol |  |  | 260 | °C | Reflow soldering, 10 s | 3 |
| Hand Soldering Temperature | Tsol |  |  | 300 | °C | Hand soldering, 3 s | 3 |
| Luminous Intensity Bin Tolerance | IV | -10 |  | 10 | % | IF = 20mA | 4 |
| Forward Voltage Bin Tolerance | VF | -0.05 |  | 0.05 | V | IF = 20mA | 4 |
| Wavelength Bin Tolerance | λd | -1 |  | 1 | nm | IF = 20mA | 4 |

## CAD (KiCad official)

- Symbol: `SZYY0603R1`
- Footprint: `LED_SMD:LED_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `szyy0603r1-etched.step` / `szyy0603r1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `szyy0603r1.step` / `szyy0603r1.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/8601065521655652352) (11 pp, sha256 `2a666b8e94245ba6`, retrieved 2026-10-19, 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/szyy0603r1-datasheet.pdf)