# ESDV5-1BF4

**STMicroelectronics** · ESD And Surge Protection (TVS/ESD) · 0201

ESDV5-1BF4 from STMicroelectronics, in a 0201. 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 | I/O1 | passive | Bidirectional protected line terminal (pin 1 mark side) of the TVS diode, with VRM = 5.5 V, VBR 5.8 V min at 1 mA and IEC 61000-4-2 ±12 kV contact / ±30 kV air. |
| 2 | I/O2 | passive | Second bidirectional TVS diode terminal, interchangeable with pin 1, connected to the other side of the protected line or ground, with CLINE 5 pF typ. (7 pF max) at 1 MHz and 0 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | 0201 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `ESDV5-1BF4`
- Footprint: `Diode_SMD:D_0201_0603Metric`
- 3D model: 0201, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.3 mm nominal _01005_ height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/esdv5-1bf4.pdf) (10 pp, sha256 `3034064dba0dce6a`, retrieved 2026-10-08, tier: manufacturer)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/esdv5-1bf4-datasheet.pdf)