# BAW156VL

**Nexperia** · Switching Diodes · SOT-23

BAW156VL from Nexperia, 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 | K1 | passive | Cathode of diode 1 in the common-anode dual diode; the per-diode limits apply, including a continuous reverse voltage of max. 75 V. |
| 2 | K2 | passive | Cathode of diode 2 in the common-anode dual diode; the per-diode limits apply, including a continuous reverse voltage of max. 75 V. |
| 3 | CA | passive | Common anode shared by both diodes; the datasheet gives no separate electrical limit for this pin beyond the per-diode ratings. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| 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 | VR |  |  | 75 | V |  | 2 |
| Repetitive peak reverse voltage | VRRM |  |  | 85 | V | Tj = 25 °C | 2 |
| Forward current (single diode loaded) | IF |  |  | 160 | mA | Tamb = 25 °C; single diode loaded [1] | 2 |
| Forward current (double diode loaded) | IF |  |  | 140 | mA | Tamb = 25 °C; double diode loaded [1] | 2 |
| Repetitive peak forward current | IFRM |  |  | 500 | mA | Tj = 25 °C | 2 |
| Repetitive peak forward current (pulse 1 µs) | IFRM |  |  | 4 | A | tp = 1 µs; square wave; Tj(init) = 25 °C | 2 |
| Repetitive peak forward current (pulse 1 ms) | IFRM |  |  | 1 | A | tp = 1 ms; square wave; Tj(init) = 25 °C | 2 |
| Non-repetitive peak forward current | IFSM |  |  | 0.5 | A | tp = 1 s; square wave; Tj(init) = 25 °C | 2 |
| Total power dissipation | Ptot |  |  | 250 | mW | Tamb ≤ 25 °C [1] | 2 |
| Junction temperature | Tj |  |  | 150 | °C |  | 2 |
| Ambient temperature | Tamb | -55 |  | 150 | °C |  | 2 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 2 |
| Thermal resistance from junction to ambient | Rth(j-a) |  |  | 500 | K/W | in free air [1] | 3 |
| Thermal resistance from junction to solder point | Rth(j-sp) |  |  | 360 | K/W | [2] | 3 |
| Forward voltage | VF |  |  | 0.9 | V | IF = 1 mA; Tj = 25 °C | 3 |
| Forward voltage | VF |  |  | 1 | V | IF = 10 mA; Tj = 25 °C | 3 |
| Forward voltage | VF |  |  | 1.1 | V | IF = 50 mA; Tj = 25 °C | 3 |
| Forward voltage | VF |  |  | 1.25 | V | IF = 150 mA; Tj = 25 °C | 3 |
| Reverse current | IR |  | 0.003 | 5 | nA | VR = 75 V; pulsed; Tj = 25 °C | 3 |
| Reverse current | IR |  | 3 | 80 | nA | VR = 75 V; pulsed; Tj = 150 °C | 3 |
| Reverse recovery time | trr |  | 0.8 | 3 | µs | IF = 10 mA; IR = 10 mA; IR(meas) = 1 mA; RL = 100 Ω; Tj = 25 °C; measured at IR = 1 mA | 3 |

## CAD (KiCad official)

- Symbol: `BAW156VL`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `baw156vl-etched.step` / `baw156vl-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `baw156vl.step` / `baw156vl.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Nexperia datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589985878899920896) (10 pp, sha256 `8e6f584154b21781`, 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/baw156vl-datasheet.pdf)