# 1SS357

**Yangzhou Yangjie Elec Tech** · Schottky Diodes · SOD-323(SC-90)

1SS357 from Yangzhou Yangjie Elec Tech, in a SOD-323(SC-90). 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-323(SC-90) |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VR | 40 |  |  | V | IR= 10uA | 1 |
| Forward Voltage (VF1) | VF1 |  |  | 0.32 | V | IF=1mA | 1 |
| Forward Voltage (VF2) | VF2 |  |  | 0.38 | V | IF=10mA | 1 |
| Forward Voltage (VF3) | VF3 |  |  | 0.6 | V | IF=100mA | 1 |
| Reverse Leakage Current | IR |  |  | 5 | uA | VR=40V | 1 |
| Repetitive peak reverse voltage | VRRM |  |  | 45 | V |  | 1 |
| Reverse voltage | VR |  |  | 40 | V | IR=10uA | 1 |
| Average forward current | IF |  |  | 100 | mA |  | 1 |
| Non-Repetitive Peak Forward Surge Current | IFSM |  |  | 1 | A | 8.3ms single half sine-wave | 1 |
| Power Dissipation | PD |  |  | 200 | mW |  | 1 |
| Thermal Resistance Junction to Ambient Air | RθJA |  |  | 500 | ℃/W |  | 1 |
| Maximum junction temperature | Tj |  |  | 125 | °C |  | 1 |
| Storage temperature range | Tstg | -55 |  | 125 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `1SS357`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323(SC-90) (KiCad packages3D, STEP)
- 3D model files: `1ss357-etched.step` / `1ss357-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1ss357.step` / `1ss357.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Yangzhou Yangjie Elec Tech datasheet](docs/1ss357-datasheet.pdf) (4 pp, sha256 `5c9cb280ee3bd58b`, retrieved 2026-10-15, 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/1ss357-datasheet.pdf)