component
ESD9N18BA-2
Public Made by Adomby adom
WILLSEMI Will Semicon ESD And Surge Protection (TVS/ESD), DFN1006-2L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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ESD9N18BA-2
WILLSEMI Will Semicon · ESD And Surge Protection (TVS/ESD) · DFN1006-2L
ESD9N18BA-2 from WILLSEMI Will Semicon, in a DFN1006-2L. 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 | Terminal 1 of the 1-line bidirectional TVS, labeled Pin1 in the circuit diagram and bottom view; the datasheet gives no per-pin function or limit beyond the device ratings (stand-off ±18V max, ±30kV contact ESD per IEC61000-4-2). |
| 2 | Pin2 | passive | Terminal 2 of the 1-line bidirectional TVS, labeled Pin2 in the circuit diagram and bottom view; the datasheet gives no per-pin function or limit beyond the device ratings (stand-off ±18V max, ±30kV contact ESD per IEC61000-4-2). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | WILLSEMI Will Semicon |
| Package | DFN1006-2L |
| Category | Circuit Protection |
| Pins | 2 |
CAD (KiCad official)
- Symbol:
ESD9N18BA-2 - Footprint:
Diode_SMD:D_SOD-882 - 3D model: DFN1006-2L (KiCad packages3D, STEP)
- 3D model files:
esd9n18ba-2-etched.step/esd9n18ba-2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esd9n18ba-2.step/esd9n18ba-2.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: WILLSEMI Will Semicon datasheet (7 pp, sha256
4ba892847d06d78b, retrieved 2026-10-13, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).
# ESD9N18BA-2
**WILLSEMI Will Semicon** · ESD And Surge Protection (TVS/ESD) · DFN1006-2L
ESD9N18BA-2 from WILLSEMI Will Semicon, in a DFN1006-2L. 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 | Terminal 1 of the 1-line bidirectional TVS, labeled Pin1 in the circuit diagram and bottom view; the datasheet gives no per-pin function or limit beyond the device ratings (stand-off ±18V max, ±30kV contact ESD per IEC61000-4-2). |
| 2 | Pin2 | passive | Terminal 2 of the 1-line bidirectional TVS, labeled Pin2 in the circuit diagram and bottom view; the datasheet gives no per-pin function or limit beyond the device ratings (stand-off ±18V max, ±30kV contact ESD per IEC61000-4-2). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | WILLSEMI Will Semicon |
| Package | DFN1006-2L |
| Category | Circuit Protection |
| Pins | 2 |
## CAD (KiCad official)
- Symbol: `ESD9N18BA-2`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: DFN1006-2L (KiCad packages3D, STEP)
- 3D model files: `esd9n18ba-2-etched.step` / `esd9n18ba-2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd9n18ba-2.step` / `esd9n18ba-2.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [WILLSEMI Will Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603042350608363520) (7 pp, sha256 `4ba892847d06d78b`, retrieved 2026-10-13, 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/esd9n18ba-2-datasheet.pdf)