# SML-311UTT86

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

SML-311UTT86 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-311utt86/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode; pad 1 of the KiCad LED footprint. |
| 2 | A | passive | Anode. |

## 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 (Min) | λD | 615 |  |  | nm | IF column of row printed 2 mA | 1 |
| Dominant wavelength (Typ) | λD |  | 620 |  | nm | IF column of row printed 2 mA | 1 |
| Dominant wavelength (Max) | λD |  |  | 625 | nm | IF column of row printed 2 mA | 1 |
| Luminous intensity (Min) | IV | 0.9 |  |  | mcd | IF=2 mA (footnote ※1: IF=2mA) | 1 |
| Luminous intensity (Typ) | IV |  | 2.5 |  | mcd | IF=2 mA (footnote ※1: IF=2mA) | 1 |
| Forward voltage (Typ) | VF |  | 1.8 |  | V | IF column of row printed 2 mA | 1 |
| Luminous intensity brightness tolerance | IV | -10 |  | 10 | % | Brightness rank on specification sheet, printed as within ±10% | 3 |

## CAD (KiCad official)

- Symbol: `SML-311UTT86`
- Footprint: `LED_SMD:LED_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `sml-311utt86-etched.step` / `sml-311utt86-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sml-311utt86.step` / `sml-311utt86.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/8590912318568558592) (4 pp, sha256 `5b06f5e943a9398f`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `LED convention` (convention), consensus `off` (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-311utt86-datasheet.pdf)