# BAS299

**Slkor(SLKORMICRO Elec.)** · Diodes - General Purpose · SOT-23

BAS299 from Slkor(SLKORMICRO Elec.), in a SOT-23. 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 | Anode | passive | Anode terminal of the diode, as labeled 1: Anode in the datasheet pinout for the SOT-23 package. |
| 2 | Cathode | passive | Cathode terminal of the diode, as labeled 2: Cathode in the datasheet pinout for the SOT-23 package. |
| 3 | Common connection | passive | Common connection terminal shared by the two diodes, as labeled 3: Common connection in the datasheet pinout for the SOT-23 package. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Slkor(SLKORMICRO Elec.) |
| Package | SOT-23 |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse voltage | V(BR) | 100 |  |  | V | IR=2.5μA | 1 |
| Reverse current | IR |  |  | 30 | nA | VR=25V | 1 |
| Reverse current | IR |  |  | 1 | μA | VR=100V | 1 |
| Forward voltage | VF |  |  | 0.715 | V | IF=1mA | 1 |
| Forward voltage | VF |  |  | 0.855 | V | IF=10mA | 1 |
| Forward voltage | VF |  |  | 1 | V | IF=50mA | 1 |
| Forward voltage | VF |  |  | 1.2 | V | IF=150mA | 1 |
| Forward voltage | VF |  |  | 1.25 | V | IF=300mA | 1 |
| Total capacitance | CT |  |  | 3 | pF | VR=0V,f=1MHz | 1 |
| Reverse recovery time | trr |  |  | 6 | ns | IF= IR =10mA, Irr=0.1*IR,RL=100Ω | 1 |
| Forward recovery voltage | Vfr |  |  | 1.75 | V | IF = 10mA, tr = 20ns | 1 |
| Non-repetitive peak reverse voltage | VRM |  |  | 100 | V |  | 1 |
| Single diode loaded by design |  |  |  | 430 | mA | Single diode loaded by design | 1 |
| Double diode loaded |  |  |  | 300 | mA | Double diode loaded | 1 |
| Repetitive peak forward current | IFRM |  |  | 900 | mA |  | 1 |
| Non-repetitive peak forward surge current | IFSM |  |  | 9 | A | t = 1.0µs | 1 |
| Non-repetitive peak forward surge current | IFSM |  |  | 3 | A | t = 1.0ms | 1 |
| Non-repetitive peak forward surge current | IFSM |  |  | 1 | A | t = 1.0s | 1 |
| Power dissipation | PD |  |  | 300 | mW |  | 1 |
| Thermal resistance junction to ambient air | RθJA |  |  | 417 | ℃/W |  | 1 |
| Operating and storage temperature range | TJ, TSTG | -65 |  | 150 | ℃ |  | 1 |

## CAD (KiCad official)

- Symbol: `BAS299`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bas299-etched.step` / `bas299-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bas299.step` / `bas299.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Slkor(SLKORMICRO Elec.) datasheet](docs/bas299-datasheet.pdf) (3 pp, sha256 `28ffcc2727e567ac`, retrieved 2026-10-28, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `off` (skipped (clean text read)), 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/bas299-datasheet.pdf)