# SML-E12P8WT86

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

SML-E12P8WT86 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-e12p8wt86/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode electrode (left-hand electrode in Figure 1, marked by the cathode index); the LED symbol in the bottom view points toward it, and the thermal-resistance evaluation board uses the cathode pad. |
| 2 | A | passive | Anode electrode (right-hand electrode in Figure 1 bottom view, opposite the cathode index); forward current IF 20mA max, peak 100mA (duty 1/10, 1kHz), reverse voltage VR 5V max. |

## 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 |
|---|---|---|---|---|---|---|---|
| Reverse Current | IR |  |  | 10 | μA | VR=5V | 2 |
| Forward Current | IF |  |  | 20 | mA | Ta=25℃ | 2 |
| Peak Forward Current | IFP |  |  | 100 | mA | Ta=25℃, Duty 1/10, 1kHz | 2 |
| Power Dissipation | PD |  |  | 54 | mW | Ta=25℃ | 2 |
| Reverse Voltage | VR |  |  | 5 | V | Ta=25℃ | 2 |
| Operation Temperature | Topr | -40 |  | 85 | ℃ |  | 2 |
| Storage Temperature | Tstg | -40 |  | 100 | ℃ |  | 2 |
| Forward Voltage | VF | 1.2 | 2.2 | 2.7 | V | IF=20mA | 2 |
| Luminous Intensity | IV | 2.5 | 6.3 | 16 | mcd | IF=20mA | 2 |
| Dominant Wave Length | λD | 557 | 560 | 563 | nm | IF=20mA | 2 |
| Junction Temperature | TjMax |  |  | 100 | ℃ |  | 17 |
| Thermal Resistance (Junction/Solder Point) | Rθj-s |  | 760 |  | ℃/W | Evaluation board: glass epoxy FR4 30x10mm, t=0.8mm; Cu pad 1.5x1.0mm (cathode), t=0.035mm | 17 |
| Thermal Resistance (Junction/Ambient) | Rθj-a |  | 990 |  | ℃/W | Evaluation board: glass epoxy FR4 30x10mm, t=0.8mm; Cu pad 1.5x1.0mm (cathode), t=0.035mm | 17 |

## CAD (KiCad official)

- Symbol: `SML-E12P8WT86`
- Footprint: `LED_SMD:LED_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `sml-e12p8wt86-etched.step` / `sml-e12p8wt86-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sml-e12p8wt86.step` / `sml-e12p8wt86.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/8589837786514546688) (22 pp, sha256 `c33f9f2c79a2a2c9`, retrieved 2026-10-19, 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-e12p8wt86-datasheet.pdf)