# BAT 18-04 E6327

**Infineon Technologies** · Switching Diodes · SOT-23

BAT 18-04 E6327 from Infineon Technologies, 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 | D1 | passive | Outer terminal of diode D1 in the BAT18-04 series pair, with the other end of D1 tied to pin 3; the diode reverse voltage is 35 V max and forward current 100 mA max. |
| 2 | D2 | passive | Outer terminal of diode D2 in the BAT18-04 series pair, with the other end of D2 tied to pin 3; the diode reverse voltage is 35 V max and forward current 100 mA max. |
| 3 | COM | passive | Center junction of the two series-connected PIN diodes D1 and D2 (BAT18-04 series configuration); forward current is 100 mA max per diode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Infineon Technologies |
| Package | SOT-23 |
| Category | Diodes |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `BAT 18-04 E6327`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bat-18-04-e6327-etched.step` / `bat-18-04-e6327-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bat-18-04-e6327.step` / `bat-18-04-e6327.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Infineon Technologies datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588912894594961409) (5 pp, sha256 `dc8713633da281a5`, retrieved 2026-10-22, tier: lcsc)
- **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/bat-18-04-e6327-datasheet.pdf)