# KPT-2012QBC-D

**Kingbright** · LED Indication - Discrete · 0805

KPT-2012QBC-D from Kingbright, in a 0805. 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/kpt-2012qbc-d/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode of the blue InGaN LED, per the schematic symbol on page 1 (reverse voltage VR 5 V max). |
| 2 | A | passive | Anode of the blue InGaN LED, per the schematic symbol on page 1 (forward current IF 30 mA max DC, VF 3.3 V typ / 4.0 V max at 20 mA). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Kingbright |
| Package | 0805 |
| 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 (Min.) | Iv | 40 | 100 |  | mcd | @ 20mA [2] | 1 |
| Forward Voltage | VF |  | 3.3 | 4 | V | IF = 20mA [2] | 2 |
| Reverse Current | IR |  |  | 50 | µA | VR = 5V | 2 |
| Power Dissipation | PD |  |  | 120 | mW |  | 2 |
| Reverse Voltage | VR |  |  | 5 | V |  | 2 |
| Junction Temperature | Tj |  |  | 115 | °C |  | 2 |
| Operating Temperature | Top | -40 |  | 85 | °C |  | 2 |
| Storage Temperature | Tstg | -40 |  | 85 | °C |  | 2 |
| DC Forward Current | IF |  |  | 30 | mA |  | 2 |
| Peak Forward Current | IFM |  |  | 150 | mA | Note [1]: 1/10 duty cycle, 0.1 ms pulse width | 2 |
| Electrostatic Discharge Threshold (HBM) |  |  |  | 250 | V | HBM | 2 |
| Thermal Resistance (Junction / Ambient) | Rth JA |  | 560 |  | °C/W | Note [2]: mounted on FR4 PC board, pad size ≥ 16 mm² per pad | 2 |
| Thermal Resistance (Junction / Solder point) | Rth JS |  | 400 |  | °C/W | Note [2]: mounted on FR4 PC board, pad size ≥ 16 mm² per pad | 2 |

## CAD (KiCad official)

- Symbol: `KPT-2012QBC-D`
- Footprint: `LED_SMD:LED_0805_2012Metric`
- 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files: `kpt-2012qbc-d-etched.step` / `kpt-2012qbc-d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `kpt-2012qbc-d.step` / `kpt-2012qbc-d.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Kingbright datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603176783181062144) (4 pp, sha256 `ab45202df694589c`, retrieved 2026-10-18, tier: lcsc)
- **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/kpt-2012qbc-d-datasheet.pdf)