# SML-D12U8WT86

**ROHM Semicon** · LED Indication - Discrete · 0603

SML-D12U8WT86 from ROHM Semicon, 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/sml-d12u8wt86/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode, marked by the cathode index on the package; the datasheet gives IF 20 mA max, IFP 100 mA (duty 1/10, 1kHz) and VR 5 V. |
| 2 | A | passive | Anode electrode of the red AlGaInP LED; typical VF is 2.2 V at IF=20 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| 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 |
|---|---|---|---|---|---|---|---|
| Dominant wavelength | λD | 615 | 620 | 625 | nm | IF=20mA, Ta=25ºC (Red U type, SML-D12U8W base part) | 1 |
| Reverse current | IR |  |  | 10 | µA | VR=5V | 1 |
| Luminous intensity | IV | 25 | 63 |  | mcd | IF=20mA, Ta=25ºC | 1 |
| Forward voltage | VF |  | 2.2 |  | V | IF=20mA | 1 |
| Forward current | IF |  |  | 20 | mA | Ta=25ºC | 1 |
| Peak forward current | IFP |  |  | 100 | mA | Duty 1/10, 1kHz, Ta=25ºC | 1 |
| Reverse voltage | VR |  |  | 5 | V | Ta=25ºC | 1 |
| Power dissipation | PD |  |  | 54 | mW | Ta=25ºC | 1 |
| Operating temperature | Topr | -40 |  | 85 | ºC |  | 1 |
| Storage temperature | Tstg | -40 |  | 100 | ºC |  | 1 |
| Dominant wavelength measurement tolerance |  | -1 |  | 1 | nm | Measurement tolerance on λD (footnote *2) | 1 |
| Luminous intensity measurement tolerance |  | -10 |  | 10 | % | Measurement tolerance on rank brightness (Ta=25ºC, IF=20mA) | 5 |

## CAD (KiCad official)

- Symbol: `SML-D12U8WT86`
- Footprint: `LED_SMD:LED_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `sml-d12u8wt86-etched.step` / `sml-d12u8wt86-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sml-d12u8wt86.step` / `sml-d12u8wt86.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ROHM Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588907313633898496) (11 pp, sha256 `ff70eedb8afca486`, retrieved 2026-10-17, 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/sml-d12u8wt86-datasheet.pdf)