component
ESDAXLC18-1BF4
Public Made by Adomby adom
STMicroelectronics ESD And Surge Protection (TVS/ESD), 0201. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
ESDAXLC18-1BF4
STMicroelectronics · ESD And Surge Protection (TVS/ESD) · 0201
ESDAXLC18-1BF4 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 | Pin1 | passive | Bidirectional TVS line terminal, marked with the pin 1 bar; leakage specified pin 1 to pin 2 at VRM = 18 V (<1 typ, 30 nA max), line capacitance 0.3/0.45/0.6 pF at 0 V, 1 MHz. |
| 2 | Pin2 | passive | Second bidirectional TVS terminal, interchangeable with pin 1, protecting the RF/NFC line to ±10 kV contact and ±30 kV air IEC 61000-4-2 discharge. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | 0201 |
| Category | Circuit Protection |
| Pins | 2 |
CAD (KiCad official)
- Symbol:
ESDAXLC18-1BF4 - 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)
- 3D model files:
esdaxlc18-1bf4-etched.step/esdaxlc18-1bf4-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esdaxlc18-1bf4.step/esdaxlc18-1bf4.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (10 pp, sha256
adae2ebf02727b4d, retrieved 2026-10-08, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).
# ESDAXLC18-1BF4
**STMicroelectronics** · ESD And Surge Protection (TVS/ESD) · 0201
ESDAXLC18-1BF4 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 | Pin1 | passive | Bidirectional TVS line terminal, marked with the pin 1 bar; leakage specified pin 1 to pin 2 at VRM = 18 V (<1 typ, 30 nA max), line capacitance 0.3/0.45/0.6 pF at 0 V, 1 MHz. |
| 2 | Pin2 | passive | Second bidirectional TVS terminal, interchangeable with pin 1, protecting the RF/NFC line to ±10 kV contact and ±30 kV air IEC 61000-4-2 discharge. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | 0201 |
| Category | Circuit Protection |
| Pins | 2 |
## CAD (KiCad official)
- Symbol: `ESDAXLC18-1BF4`
- 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)
- 3D model files: `esdaxlc18-1bf4-etched.step` / `esdaxlc18-1bf4-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esdaxlc18-1bf4.step` / `esdaxlc18-1bf4.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589794851878572032) (10 pp, sha256 `adae2ebf02727b4d`, retrieved 2026-10-08, 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/esdaxlc18-1bf4-datasheet.pdf)