# BAV19W

**TWGMC** · Schottky Diodes · SOD-123

BAV19W from TWGMC, in a SOD-123. 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 | Cathode | passive | Cathode terminal of the diode; reverse voltage ratings for this family are VR 100 V (BAV19W), 150 V (BAV20W) and 200 V (BAV21W), and VRRM 120 V, 200 V and 250 V respectively. |
| 2 | Anode | passive | Anode terminal of the diode; forward continuous current IFM is rated at 400 mA and average rectified forward current IF(AV) at 200 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TWGMC |
| Package | SOD-123 |
| 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 |
|---|---|---|---|---|---|---|---|
| Forward Voltage | VF |  |  | 1 | V | at IF = 100 mA | 1 |
| Forward Voltage | VF |  |  | 1.25 | V | at IF = 200 mA | 1 |
| Reverse Breakdown Voltage (BAV19W) | V(BR)R | 120 |  |  | V | at IR = 100 µA | 1 |
| Reverse Current (BAV19W, at VR = 100 V) | IR |  |  | 100 | nA | at VR = 100 V | 1 |
| Total Capacitance | CT |  |  | 5 | pF | at VR = 0, f = 1 MHz | 1 |
| Reverse Recovery Time | trr |  |  | 50 | ns | at IF = IR = 30 mA, Irr = 0.1IR, RL = 100 Ω | 1 |
| Repetitive Peak Reverse Voltage (BAV19W) | VRRM |  |  | 120 | V | Ta = 25 °C | 1 |
| Reverse Voltage (BAV19W) | VR |  |  | 100 | V | Ta = 25 °C | 1 |
| Average Rectified Forward Current | IF(AV) |  |  | 200 | mA | Ta = 25 °C | 1 |
| Forward Continuous Current | IFM |  |  | 400 | mA | Ta = 25 °C | 1 |
| Repetitive Peak Forward Current | IFRM |  |  | 625 | mA | Ta = 25 °C | 1 |
| Non-repetitive Peak Forward Surge Current | IFSM |  |  | 2.5 | A | at t = 1 ms, Ta = 25 °C | 1 |
| Non-repetitive Peak Forward Surge Current | IFSM |  |  | 0.5 | A | at t = 1 s, Ta = 25 °C | 1 |
| Power Dissipation | Pd |  |  | 250 | mW | Ta = 25 °C | 1 |
| Operating and Storage Temperature Range | Tj, Tstg | -65 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `BAV19W`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `bav19w-etched.step` / `bav19w-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bav19w.step` / `bav19w.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TWGMC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590463118872129536) (3 pp, sha256 `dd43f2f5123228d5`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/bav19w-datasheet.pdf)