# NCD0402G1

**Foshan NationStar Optoelectronics** · LED Indication - Discrete · 0402

NCD0402G1 from Foshan NationStar Optoelectronics, 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/ncd0402g1/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode (negative, marked with the cathode mark); reverse voltage VR max 5 V and reverse current IR max 10 µA at VR=5 V. |
| 2 | A | passive | Anode (positive); forward current IF max 20 mA (IFP 50 mA pulsed, ≤0.1 ms, duty ≤1/10), VF typ 2.8 V at IF=5 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Foshan NationStar Optoelectronics |
| 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 |  |  | 10 | μA | VR=5V | 1 |
| Forward Voltage | VF | 2.5 | 2.8 | 3.6 | V | IF=5mA | 1 |
| Dominant Wavelength | λd | 513 | 522 | 532 | nm |  | 1 |
| Luminous Intensity | IV | 100 | 150 | 300 | mcd |  | 1 |
| View Angle | 2θ1/2 |  |  | 130 | deg. |  | 1 |
| Luminous Intensity bin tolerance | IV | -15 |  | 15 | % | Note 1: tolerance on each Luminous Intensity bin | 1 |
| Forward Voltage bin tolerance | VF | -0.1 |  | 0.1 | V | Note 1: tolerance on each Forward Voltage bin | 1 |
| Dominant Wavelength tolerance | λd | -1 |  | 1 | nm | Note 1: tolerance of dominant wavelength | 1 |
| Forward Current | IF |  |  | 20 | mA |  | 1 |
| Pulse Forward Current | IFP |  |  | 50 | mA | Pulse width ≤0.1ms, duty ≤1/10 | 1 |
| Reverse Voltage | VR |  |  | 5 | V |  | 1 |
| Operating Temperature | TOPR | -30 |  | 85 | ℃ |  | 1 |
| Storage Temperature | Tstg | -40 |  | 100 | ℃ |  | 1 |
| Power Dissipation | PD |  |  | 72 | mW |  | 1 |
| Peak Wavelength | λP |  | 520 |  | nm |  | 1 |
| Spectrum Radiation Bandwidth | Δλ |  | 30 |  | nm |  | 1 |

## CAD (KiCad official)

- Symbol: `NCD0402G1`
- Footprint: `LED_SMD:LED_0402_1005Metric`
- 3D model: 0402 (KiCad packages3D, STEP)
- 3D model files: `ncd0402g1-etched.step` / `ncd0402g1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ncd0402g1.step` / `ncd0402g1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Foshan NationStar Optoelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757972771873927168) (2 pp, sha256 `5932e94c41e09d05`, retrieved 2026-10-21, 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/ncd0402g1-datasheet.pdf)