# S3D

**LGE** · Diodes - General Purpose · SMC

S3D from LGE, in a SMC. 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.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LGE |
| Package | SMC |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Recurrent Peak Reverse Voltage | VRRM |  |  | 200 | V |  | 1 |
| Maximum RMS Voltage | VRMS |  |  | 140 | V |  | 1 |
| Maximum DC Blocking Voltage | VDC |  |  | 200 | V |  | 1 |
| Maximum Average Forward Rectified Current | I(AV) |  |  | 3 | A | @TL=105 oC | 1 |
| Peak Forward Surge Current | IFSM |  |  | 100 | A | 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) | 1 |
| Maximum Instantaneous Forward Voltage | VF |  |  | 1.15 | V | @ 3.0A | 1 |
| Maximum DC Reverse Current | IR |  |  | 10 | uA | @ TA=25 oC, at rated DC blocking voltage | 1 |
| Maximum DC Reverse Current | IR |  |  | 250 | uA | @ TA=125 oC, at rated DC blocking voltage | 1 |
| Typical Thermal Resistance, junction to lead | RθJL |  | 13 |  | °C/W | Note 3: measured on P.C. board with 0.4 in x 0.4 in (10mm x 10mm) copper pad areas | 1 |
| Typical Thermal Resistance, junction to ambient | RθJA |  | 47 |  | °C/W | Note 3: measured on P.C. board with 0.4 in x 0.4 in (10mm x 10mm) copper pad areas | 1 |
| Operating Temperature Range | TJ | -55 |  | 150 | oC |  | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | oC |  | 1 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | tin | 
 Terminals: Pure tin plated, lead free. 
 Polarity: Indicated by cathode band | 1 |

## CAD (KiCad official)

- Symbol: `S3D`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: SMC (KiCad packages3D, STEP)
- 3D model files: `s3d-etched.step` / `s3d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `s3d.step` / `s3d.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [LGE datasheet](docs/s3d-datasheet.pdf) (2 pp, sha256 `3075acb408b2823d`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band 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/s3d-datasheet.pdf)