# BAV23CA

**ST Semtech** · Switching Diodes · TO-236

BAV23CA from ST Semtech, in a TO-236. 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 | K1 | passive | Cathode of diode 1 in the BAV23CA dual common-anode pair, rated VR 200 V, IF 225 mA, VRRM 250 V. |
| 2 | K2 | passive | Cathode of diode 2 in the BAV23CA dual common-anode pair, rated VR 200 V, IF 225 mA, VRRM 250 V. |
| 3 | A | passive | Common anode of both diodes in the BAV23CA, with Ptot 350 mW for the package. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ST Semtech |
| Package | TO-236 |
| 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 Breakdown Voltage at IR = 100 µA | V(BR)R | 250 |  |  | V | at IR = 100 µA | 1 |
| Forward Voltage at IF = 100 mA | VF |  |  | 1 | V | at IF = 100 mA | 1 |
| Forward Voltage at IF = 200 mA | VF |  |  | 1.25 | V | at IF = 200 mA | 1 |
| Reverse Current | IR |  |  | 100 | nA | at VR = 200 V, Tj = 25 OC | 1 |
| Reverse Current | IR |  |  | 100 | µA | at VR = 200 V, Tj = 150 OC | 1 |
| Total Capacitance | Ctot |  |  | 5 | pF | at VR = 0 V, f = 1 MHz | 1 |
| Reverse Recovery Time | trr |  |  | 50 | ns | at IF = IR = 30 mA, Irr = 0.1 X IR, RL = 100 Ω | 1 |
| Maximum Repetitive Reverse Voltage | VRRM |  |  | 250 | V |  | 1 |
| Reverse Voltage | VR |  |  | 200 | V |  | 1 |
| Forward Current | IF |  |  | 225 | mA |  | 1 |
| Maximum Forward Current | IFM |  |  | 400 | mA |  | 1 |
| Repetitive Peak Forward Current | IFRM |  |  | 625 | mA |  | 1 |
| Non-repetitive Peak Forward Surge Current | IFSM |  |  | 1.7 | A | at t = 10 ms | 1 |
| Non-repetitive Peak Forward Surge Current | IFSM |  |  | 3 | A | at t = 100 µs | 1 |
| Non-repetitive Peak Forward Surge Current | IFSM |  |  | 9 | A | at t = 1 µs | 1 |
| Power Dissipation | Ptot |  |  | 350 | mW |  | 1 |
| Operating Junction and Storage Temperature Range | Tj, Tstg | -65 |  | 150 | °C |  | 1 |
| Thermal Resistance Junction to Ambient Air | RθJA |  |  | 357 | °C/W |  | 1 |

## CAD (KiCad official)

- Symbol: `BAV23CA`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: TO-236 (KiCad packages3D, STEP)
- 3D model files: `bav23ca-etched.step` / `bav23ca-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bav23ca.step` / `bav23ca.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ST Semtech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603152327629430784) (3 pp, sha256 `2ca02f714aa73a59`, retrieved 2026-10-15, 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/bav23ca-datasheet.pdf)