component
P4KE440CA
Public Made by Adomby adom
EIC Semicon ESD And Surge Protection (TVS/ESD), DO-41. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
main
P4KE440CA
EIC Semicon · ESD And Surge Protection (TVS/ESD) · DO-41
P4KE440CA from EIC Semicon, in a DO-41. 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | EIC Semicon |
| Package | DO-41 |
| Category | Circuit Protection |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Breakdown voltage VBR (min) | VBR | 418 | V | It = 1.0 mA; Note 1: VBR measured after It applied for 300 µs | 3 | ||
| Breakdown voltage VBR (max) | VBR | 462 | V | It = 1.0 mA; Note 1: VBR measured after It applied for 300 µs | 3 | ||
| Maximum reverse leakage current | IR | 5 | µA | @ VRWM = 376 V | 3 | ||
| Working peak reverse voltage | VRWM | 376 | V | 3 | |||
| Maximum reverse surge current | IRSM | 1 | A | 3 | |||
| Maximum clamping voltage | VRSM | 602 | V | 3 | |||
| Maximum temperature coefficient of VBR | 0.11 | %/°C | 3 | ||||
| Peak power dissipation (PPK) | PPK | 400 | W | Ta = 25 °C, Tp = 1 ms (Note 1) | 1 | ||
| Steady state power dissipation | PD | 1 | W | TL = 75 °C, lead lengths 0.375 in (9.5 mm) (Note 2) | 1 | ||
| Operating and storage temperature range | TJ, TSTG | -65 | 175 | °C | 1 |
CAD (KiCad official)
- Symbol:
P4KE440CA - Footprint:
Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal - 3D model: DO-41 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: EIC Semicon datasheet (4 pp, sha256
56ebbcec40877bd1, retrieved 2026-10-15, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).
# P4KE440CA
**EIC Semicon** · ESD And Surge Protection (TVS/ESD) · DO-41
P4KE440CA from EIC Semicon, in a DO-41. 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | EIC Semicon |
| Package | DO-41 |
| Category | Circuit Protection |
| Pins | 2 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Breakdown voltage VBR (min) | VBR | 418 | | | V | It = 1.0 mA; Note 1: VBR measured after It applied for 300 µs | 3 |
| Breakdown voltage VBR (max) | VBR | | | 462 | V | It = 1.0 mA; Note 1: VBR measured after It applied for 300 µs | 3 |
| Maximum reverse leakage current | IR | | | 5 | µA | @ VRWM = 376 V | 3 |
| Working peak reverse voltage | VRWM | | | 376 | V | | 3 |
| Maximum reverse surge current | IRSM | | | 1 | A | | 3 |
| Maximum clamping voltage | VRSM | | | 602 | V | | 3 |
| Maximum temperature coefficient of VBR | | | 0.11 | | %/°C | | 3 |
| Peak power dissipation (PPK) | PPK | 400 | | | W | Ta = 25 °C, Tp = 1 ms (Note 1) | 1 |
| Steady state power dissipation | PD | | | 1 | W | TL = 75 °C, lead lengths 0.375 in (9.5 mm) (Note 2) | 1 |
| Operating and storage temperature range | TJ, TSTG | -65 | | 175 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `P4KE440CA`
- Footprint: `Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal`
- 3D model: DO-41 (KiCad packages3D, STEP)
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [EIC Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603079015364513792) (4 pp, sha256 `56ebbcec40877bd1`, retrieved 2026-10-15, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/p4ke440ca-datasheet.pdf)