# S310

**Yangzhou Yangjie Elec Tech** · Schottky Diodes · SOD-123FL

S310 from Yangzhou Yangjie Elec Tech, in a SOD-123FL. 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 | Yangzhou Yangjie Elec Tech |
| Package | SOD-123FL |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive peak reverse voltage | VRRM |  |  | 100 | V | S310 column | 1 |
| Storage temperature | Tstg | -55 |  | 150 | ℃ |  | 1 |
| Average rectified output current | IO |  |  | 3 | A | @60Hz sine wave, resistance load, Ta (FIG.1) | 1 |
| Surge (non-repetitive) forward current | IFSM |  |  | 65 | A | @60Hz half-sine wave, 1 cycle, Tj=25℃ | 1 |
| Typical junction capacitance | Cj |  | 165 |  | pF | measured at 1MHz, applied 4.0V DC | 1 |
| Maximum instantaneous forward voltage drop per diode | VF |  |  | 0.85 | V | IFM=3.0A | 1 |
| Maximum DC reverse current at rated DC blocking voltage per diode, Ta=25℃ | IRRM |  |  | 0.1 | mA | @ VRM=VRRM, Ta=25℃ | 1 |
| Maximum DC reverse current at rated DC blocking voltage per diode, Ta=100℃ | IRRM |  |  | 5 | mA | @ VRM=VRRM, Ta=100℃ | 1 |
| Thermal resistance junction to lead | RθJ-L |  | 25 |  | ℃/W | mounted on PCB with 3mm*3mm copper pad areas | 2 |

## CAD (KiCad official)

- Symbol: `S310`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files: `s310-etched.step` / `s310-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `s310.step` / `s310.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Yangzhou Yangjie Elec Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588915875995271168) (4 pp, sha256 `6aab8150c9da1947`, retrieved 2026-10-14, 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/s310-datasheet.pdf)