# SD103AWSQ

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

SD103AWSQ 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 |
|---|---|---|---|---|---|---|---|
| Repetitive peak reverse voltage (SD103AWSQ) | VRRM |  |  | 40 | V |  | 1 |
| Average Forward Current | IFAV |  |  | 0.35 | A |  | 1 |
| Peak Forward Surge Current | IFSM |  |  | 3 | A | 8.3ms, half sine | 1 |
| Power Dissipation | PD |  |  | 200 | mW |  | 1 |
| Thermal Resistance Junction to Ambient | RthJA |  |  | 500 | ℃/W |  | 1 |
| Junction Temperature | TJ | -55 |  | 125 | ℃ |  | 1 |
| Storage Temperature Range | Tstg | -55 |  | 150 | ℃ |  | 1 |
| Forward Voltage | VF |  |  | 0.37 | V | IF=20mA | 2 |
| Forward Voltage | VF |  |  | 0.6 | V | IF=200mA | 2 |
| Reverse Leakage Current (SD103AWSQ) | IR |  |  | 5 | uA | VR=30V | 2 |
| Reverse Breakdown Voltage (SD103AWSQ) | VBR | 40 |  |  | V | IR=100uA | 2 |
| Junction Capacitance | CJ |  |  | 50 | pF | VR=0V, f=1MHZ | 2 |
| Reverse Recovery Time | trr |  |  | 8 | ns | IF=IR=10mA, Irr=1mA, RL=100Ω | 2 |

## 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 |
|---|---|---|---|---|
| housing |  | black | 3. Body color: Black | 4 |
| contacts |  | tin | ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |

## CAD (KiCad official)

- Symbol: `SD103AWSQ`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323(SC-90) (KiCad packages3D, STEP)
- 3D model files: `sd103awsq-etched.step` / `sd103awsq-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sd103awsq.step` / `sd103awsq.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/8603063695627481088) (5 pp, sha256 `36fa538d357cce41`, retrieved 2026-10-17, 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/sd103awsq-datasheet.pdf)