# BAS70WS

**hongjiacheng** · Schottky Barrier Diodes (SBD) · SOD-323

BAS70WS from hongjiacheng, in a SOD-323. 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 | hongjiacheng |
| Package | SOD-323 |
| 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 forward voltage | VF |  |  | 0.41 | V | IF=1mA | 2 |
| Maximum forward voltage | VF |  |  | 1 | V | IF=15mA | 2 |
| Maximum reverse current | IR |  |  | 100 | nA | VR=50V | 2 |
| Capacitance between terminals | CT |  |  | 2 | pF | VR=0V, f=1.0MHz | 2 |
| Maximum reverse recovery time | trr |  |  | 5 | ns | IF=IR=10mA; IR=10mA, RL=100Ω | 2 |
| Maximum repetitive peak reverse voltage | VRRM |  |  | 70 | V |  | 1 |
| Maximum RMS voltage | VRMS |  |  | 70 | V |  | 1 |
| Maximum DC blocking voltage | VDC |  |  | 70 | V |  | 1 |
| Maximum average forward rectified current | IF(AV) |  |  | 70 | mA |  | 1 |
| Non-repetitive Peak Forward Surge Current | IFSM |  |  | 100 | mA | t=8.3ms Half-sine wave | 1 |
| Power Dissipation | PD |  |  | 200 | mW |  | 1 |
| Junction Temperature | Tj | -55 |  | 150 | ℃ |  | 1 |
| Storage temperature range | TSTG | -55 |  | 150 | ℃ |  | 1 |
| Typical thermal resistance | RθJA |  | 625 |  | ℃/W |  | 1 |

## CAD (KiCad official)

- Symbol: `BAS70WS`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `bas70ws-etched.step` / `bas70ws-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bas70ws.step` / `bas70ws.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [hongjiacheng datasheet](docs/bas70ws-datasheet.pdf) (3 pp, sha256 `09b3651ffd9d805c`, retrieved 2026-10-28, 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/bas70ws-datasheet.pdf)