# SML-P12WTT86R

**ROHM Semicon** · LED Indication - Discrete · 0402

SML-P12WTT86R from ROHM Semicon, 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/sml-p12wtt86r/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode, marked by the cathode index on the package and placed on the sprocket-hole side of the T86 tape; yellow AlGaInP chip, VF typ. 2.1V at IF=20mA. |
| 2 | A | passive | Anode terminal; absolute maximum forward current 20mA (100mA peak at duty 1/10, 1kHz) and reverse voltage 5V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| 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 |
|---|---|---|---|---|---|---|---|
| Forward current (DC) | IF |  |  | 20 | mA | Yellow (AlGaInP) group, Ta=25ºC | 1 |
| Peak forward current | IFP |  |  | 100 | mA | Duty 1/10, 1kHz | 1 |
| Reverse voltage | VR |  |  | 5 | V | Yellow (AlGaInP) group | 1 |
| Operating temperature | Topr | -40 |  | 85 | ºC |  | 1 |
| Storage temperature | Tstg | -40 |  | 100 | ºC |  | 1 |

## CAD (KiCad official)

- Symbol: `SML-P12WTT86R`
- Footprint: `LED_SMD:LED_0402_1005Metric`
- 3D model: 0402 (KiCad packages3D, STEP)
- 3D model files: `sml-p12wtt86r-etched.step` / `sml-p12wtt86r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sml-p12wtt86r.step` / `sml-p12wtt86r.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/8589834962661765120) (12 pp, sha256 `6b3e0c9217b1620b`, 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-p12wtt86r-datasheet.pdf)