# SMLD12EN1WT86S

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

SMLD12EN1WT86S 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/smld12en1wt86s/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 |
|---|---|---|---|---|---|---|---|
| Power Dissipation | PD |  |  | 70 | mW | Ta=25℃ | 2 |
| Forward Current | IF |  |  | 20 | mA | Ta=25℃ | 2 |
| Peak Forward Current | IFP |  |  | 100 | mA | Ta=25℃ | 2 |
| Reverse Voltage | VR |  |  | 5 | V | Ta=25℃ | 2 |
| Operation Temperature | Topr | -40 |  | 100 | ℃ |  | 2 |
| Storage Temperature | Tstg | -40 |  | 100 | ℃ |  | 2 |
| Luminous Intensity Rank S (classification range) | S | 90 |  | 140 | mcd | Ta=25℃, IF=5mA | 2 |
| Forward Voltage | VF |  | 3 | 3.5 | V | IF=5mA | 2 |
| Reverse Current | IR |  |  | 10 | μA | VR=5V | 2 |
| Dominant Wavelength | λD | 520 | 527 | 535 | nm | IF=5mA | 2 |
| Dominant Wavelength tolerance | λD | -1 |  | 1 | nm |  | 2 |
| Luminous Intensity classification tolerance |  | -10 |  | 10 | % |  | 2 |
| Thermal Resistance Junction to Solder Point | Rθj-s |  | 420 |  | ℃/W | Evaluation board: glass epoxy FR4 30x10mm, t=1.6mm; Cu pad 4.0x4.0mm (cathode), t=0.07mm | 17 |
| Thermal Resistance Junction to Ambient | Rθj-a |  | 600 |  | ℃/W | Evaluation board: glass epoxy FR4 30x10mm, t=1.6mm; Cu pad 4.0x4.0mm (cathode), t=0.07mm | 17 |
| Junction Temperature | TjMax |  |  | 110 | ℃ |  | 17 |

## CAD (KiCad official)

- Symbol: `SMLD12EN1WT86S`
- Footprint: `LED_SMD:LED_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `smld12en1wt86s-etched.step` / `smld12en1wt86s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smld12en1wt86s.step` / `smld12en1wt86s.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/8603097337460387840) (22 pp, sha256 `99d0b783af0db3a3`, retrieved 2026-10-18, 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/smld12en1wt86s-datasheet.pdf)