# BST23C052V

**BORN** · ESD And Surge Protection (TVS/ESD) · SOT-23

BST23C052V from BORN, 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 | 1 | passive | One of the two line-protection terminals of the SOT-23 TVS, shown on the top-view pin configuration; the datasheet gives no separate function label for pin 1. |
| 2 | 2 | passive | One of the two line-protection terminals of the SOT-23 TVS, shown on the top-view pin configuration; the datasheet gives no separate function label for pin 2. |
| 3 | 3 | passive | Common terminal of the device, identified as the cathode in unidirectional-only operation according to the package note. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BORN |
| Package | SOT-23 |
| Category | Circuit Protection |
| 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 Stand-Off Voltage | VRWM |  | 5 |  | V |  | 2 |
| Reverse Breakdown Voltage | VBR |  | 6 |  | V | IT=1mA | 2 |
| Reverse Leakage Current | IR |  | 1 |  | μA | VRWM=5V,T=25°C | 2 |
| Peak Pulse Current | IPP |  | 17 |  | A | tp =8/20μs | 2 |
| Clamping Voltage | VC |  | 9.8 |  | V | IPP=1A, tp=8/20μs | 2 |
| Maximum Clamping Voltage | VC |  | 16.7 |  | V | IPP=18A, tp=8/20μs | 2 |
| Junction Capacitance (Pin 2 to 3) | Cj |  | 100 |  | pF | VR = 0V, f = 1MHz | 2 |
| Junction Capacitance (Pin 1 to 3 and Pin 2 to 3) | Cj |  | 100 |  | pF | VR = 0V, f = 1MHz | 2 |
| Peak Pulse Power | PPP |  |  | 250 | Watts | tp=8/20μs | 2 |
| Lead Soldering Temperature | TL |  |  | 260 | °C | 10 sec | 2 |
| Operating Temperature | TJ | -55 |  | 125 | °C |  | 2 |
| Storage Temperature | TSTG | -55 |  | 150 | °C |  | 2 |

## CAD (KiCad official)

- Symbol: `BST23C052V`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bst23c052v-etched.step` / `bst23c052v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bst23c052v.step` / `bst23c052v.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [BORN datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586187676978991104) (5 pp, sha256 `0cc01ed2156c3035`, 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/bst23c052v-datasheet.pdf)