# DYWH-19-21SUGC

**TONYU** · LED Indication - Discrete · 0603

DYWH-19-21SUGC from TONYU, 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/dywh-19-21sugc/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode (-) of the LED, marked by the cathode mark on the bottom; reverse voltage max 5 V (IR test only, not designed for reverse operation). |
| 2 | A | passive | Anode (+) of the InGaN green LED; forward current max 25 mA (50 mA peak at 1 kHz, 1/10 duty), VF 1.95-2.75 V at IF=1mA, requires external series resistor. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TONYU |
| 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 |
|---|---|---|---|---|---|---|---|
| Luminous Intensity | Iv | 57 |  | 140 | mcd | IF=1mA | 4 |
| Dominant Wavelength | λd | 525 |  | 540 | nm |  | 4 |
| Forward Voltage | VF | 1.95 |  | 2.75 | V |  | 4 |
| Reverse Current | IR |  |  | 50 | μA | VR=5V | 4 |
| Tolerance of Luminous Intensity |  | -11 |  | 11 | % | Note 1 on page 4 | 4 |
| Tolerance of Dominant Wavelength |  | -1 |  | 1 | nm | Note 2 on page 4 | 4 |
| Tolerance of Forward Voltage |  | -0.1 |  | 0.1 | V | Note 3 on page 4 | 4 |
| Forward Current | IF |  |  | 25 | mA |  | 7 |
| Peak Forward Current | IFp |  |  | 50 | mA | F=1KHZ, duty cycle 1/10 | 7 |
| Reverse Voltage | VR |  |  | 5 | V |  | 7 |
| Power Dissipation | Pd |  |  | 69 | mW |  | 7 |
| Operation Temperature | Tamb | -40 |  | 85 | ℃ |  | 7 |
| Storage Temperature | Tstg | -40 |  | 90 | ℃ |  | 7 |
| Electrostatic Discharge (HBM) | ESDHBM |  |  | 1000 | V |  | 7 |
| Soldering Temperature | Tsol |  |  | 260 | ℃ | Reflow soldering: 260 ℃ for 10 sec. Hand soldering: 350 ℃ for 3 sec. | 7 |

## CAD (KiCad official)

- Symbol: `DYWH-19-21SUGC`
- Footprint: `LED_SMD:LED_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `dywh-19-21sugc-etched.step` / `dywh-19-21sugc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dywh-19-21sugc.step` / `dywh-19-21sugc.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TONYU datasheet](docs/dywh-19-21sugc-datasheet.pdf) (10 pp, sha256 `307fff6d5384708d`, retrieved 2026-10-17, 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/dywh-19-21sugc-datasheet.pdf)