PESD0402AS05

YFW · ESD And Surge Protection (TVS/ESD) · 0402

PESD0402AS05 from YFW, in a 0402. 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	1	passive	One terminal of the bidirectional single-line ESD protection; continuous operating voltage is 5.0 V max, leakage is 100 nA max at 5 V DC, and it is rated for IEC 61000-4-2 ESD of 8 kV contact and 15 kV air.
2	2	passive	Other terminal of the bidirectional single-line ESD protection; continuous operating voltage is 5.0 V max, leakage is 100 nA max at 5 V DC, and it is rated for IEC 61000-4-2 ESD of 8 kV contact and 15 kV air.

Key specifications

Parameter	Value
Manufacturer	YFW
Package	0402
Category	Circuit Protection
Pins	2

CAD (KiCad official)

Symbol: PESD0402AS05
Footprint: Diode_SMD:D_0402_1005Metric
3D model: 0402, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.4 mm nominal 0402 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: pesd0402as05-etched.step / pesd0402as05-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pesd0402as05.step / pesd0402as05.glb are the bare package body.

Provenance

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

Datasheet: YFW datasheet (5 pp, sha256 7ca2366db45375ef, retrieved 2026-10-18, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (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

# PESD0402AS05

**YFW** · ESD And Surge Protection (TVS/ESD) · 0402

PESD0402AS05 from YFW, in a 0402. 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 | 1 | passive | One terminal of the bidirectional single-line ESD protection; continuous operating voltage is 5.0 V max, leakage is 100 nA max at 5 V DC, and it is rated for IEC 61000-4-2 ESD of 8 kV contact and 15 kV air. |
| 2 | 2 | passive | Other terminal of the bidirectional single-line ESD protection; continuous operating voltage is 5.0 V max, leakage is 100 nA max at 5 V DC, and it is rated for IEC 61000-4-2 ESD of 8 kV contact and 15 kV air. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| Package | 0402 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `PESD0402AS05`
- Footprint: `Diode_SMD:D_0402_1005Metric`
- 3D model: 0402, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.4 mm nominal _0402_ 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: `pesd0402as05-etched.step` / `pesd0402as05-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pesd0402as05.step` / `pesd0402as05.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [YFW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590927210889506816) (5 pp, sha256 `7ca2366db45375ef`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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/pesd0402as05-datasheet.pdf)