# BAS70WT

**Yangzhou Yangjie Elec Tech** · Schottky Barrier Diodes (SBD) · SOT-323(SC-70)

BAS70WT from Yangzhou Yangjie Elec Tech, in a SOT-323(SC-70). 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 | A | passive | Anode of the single Schottky diode (VR 70 V, IF 70 mA continuous), shown connected through the diode to pin 3 in the BAS70WT symbol. |
| 2 | NC | unconnected | No internal connection on the single-diode BAS70WT; the symbol shows no diode on this lead. |
| 3 | K | passive | Cathode of the single Schottky diode (VR 70 V, IF 70 mA continuous), the top lead of the SOT-323 package. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | SOT-323(SC-70) |
| Category | Diodes |
| Pins | 3 |

## 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 Instantaneous Forward Voltage | VF |  |  | 0.41 | V | IFM=1mA | 2 |
| Maximum Instantaneous Forward Voltage | VF |  |  | 1 | V | IFM=15mA | 2 |
| Continuous Reverse Voltage | VR | 70 |  |  | V | IR=10uA | 2 |
| Maximum DC Reverse Current | IR |  |  | 0.2 | uA | VR=50V | 2 |
| Maximum Junction Capacitance | CJ |  |  | 2 | pF | f=1.0MHz, VR=1.0V | 2 |
| Maximum Reverse Recovery Time | Trr |  |  | 5 | ns | IF=IR=10mA,I(REC)=1mA | 2 |
| Continuous Reverse Voltage | VR |  |  | 70 | V | Ta=25℃ | 1 |
| Forward Continuous Current | IF |  |  | 70 | mA | Ta=25℃ | 1 |
| Non-Repetitive Peak Forward Surge Current | IFSM |  |  | 0.1 | A | t = 8.3ms | 1 |
| Junction Temperature | TJ | -55 |  | 125 | ℃ |  | 1 |
| Storage Temperature range | Tstg | -55 |  | 125 | ℃ |  | 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: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |

## CAD (KiCad official)

- Symbol: `BAS70WT`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323(SC-70) (KiCad packages3D, STEP)
- 3D model files: `bas70wt-etched.step` / `bas70wt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bas70wt.step` / `bas70wt.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Yangzhou Yangjie Elec Tech datasheet](docs/bas70wt-datasheet.pdf) (4 pp, sha256 `9a6d66883c50548e`, retrieved 2026-10-31, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (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/bas70wt-datasheet.pdf)