component
AO4421-VB
Public Made by Adomby adom
VBsemi Elec MOSFETs, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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AO4421-VB
VBsemi Elec · MOSFETs · SO-8
AO4421-VB from VBsemi Elec, in a SO-8. 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 | S | passive | Source terminal of the P-channel MOSFET (pin 1 of SO-8), tied to pins 2 and 3; continuous source current (diode conduction) IS is -4.5 A. |
| 2 | S | passive | Source terminal of the P-channel MOSFET (pin 2 of SO-8), tied to pins 1 and 3; continuous source current (diode conduction) IS is -4.5 A. |
| 3 | S | passive | Source terminal of the P-channel MOSFET (pin 3 of SO-8), tied to pins 1 and 2; continuous source current (diode conduction) IS is -4.5 A. |
| 4 | G | input | Gate terminal of the P-channel MOSFET with a maximum gate-source voltage VGS of ±20 V and gate-source leakage up to ±100 nA. |
| 5 | D | passive | Drain terminal of the P-channel MOSFET (pin 5 of SO-8), tied to pins 6, 7 and 8; drain-source voltage VDS is -60 V and continuous drain current ID is -8 A at TC = 25 °C. |
| 6 | D | passive | Drain terminal of the P-channel MOSFET (pin 6 of SO-8), tied to pins 5, 7 and 8; drain-source voltage VDS is -60 V and continuous drain current ID is -8 A at TC = 25 °C. |
| 7 | D | passive | Drain terminal of the P-channel MOSFET (pin 7 of SO-8), tied to pins 5, 6 and 8; drain-source voltage VDS is -60 V and continuous drain current ID is -8 A at TC = 25 °C. |
| 8 | D | passive | Drain terminal of the P-channel MOSFET (pin 8 of SO-8), tied to pins 5, 6 and 7; drain-source voltage VDS is -60 V and continuous drain current ID is -8 A at TC = 25 °C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | VBsemi Elec |
| Package | SO-8 |
| Category | Transistors |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
AO4421-VB - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
ao4421-vb-etched.step/ao4421-vb-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ao4421-vb.step/ao4421-vb.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: VBsemi Elec datasheet (9 pp, sha256
a348b89c8593589f, retrieved 2026-10-27, 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).
# AO4421-VB
**VBsemi Elec** · MOSFETs · SO-8
AO4421-VB from VBsemi Elec, in a SO-8. 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 | S | passive | Source terminal of the P-channel MOSFET (pin 1 of SO-8), tied to pins 2 and 3; continuous source current (diode conduction) IS is -4.5 A. |
| 2 | S | passive | Source terminal of the P-channel MOSFET (pin 2 of SO-8), tied to pins 1 and 3; continuous source current (diode conduction) IS is -4.5 A. |
| 3 | S | passive | Source terminal of the P-channel MOSFET (pin 3 of SO-8), tied to pins 1 and 2; continuous source current (diode conduction) IS is -4.5 A. |
| 4 | G | input | Gate terminal of the P-channel MOSFET with a maximum gate-source voltage VGS of ±20 V and gate-source leakage up to ±100 nA. |
| 5 | D | passive | Drain terminal of the P-channel MOSFET (pin 5 of SO-8), tied to pins 6, 7 and 8; drain-source voltage VDS is -60 V and continuous drain current ID is -8 A at TC = 25 °C. |
| 6 | D | passive | Drain terminal of the P-channel MOSFET (pin 6 of SO-8), tied to pins 5, 7 and 8; drain-source voltage VDS is -60 V and continuous drain current ID is -8 A at TC = 25 °C. |
| 7 | D | passive | Drain terminal of the P-channel MOSFET (pin 7 of SO-8), tied to pins 5, 6 and 8; drain-source voltage VDS is -60 V and continuous drain current ID is -8 A at TC = 25 °C. |
| 8 | D | passive | Drain terminal of the P-channel MOSFET (pin 8 of SO-8), tied to pins 5, 6 and 7; drain-source voltage VDS is -60 V and continuous drain current ID is -8 A at TC = 25 °C. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | VBsemi Elec |
| Package | SO-8 |
| Category | Transistors |
| Pins | 8 |
## CAD (KiCad official)
- Symbol: `AO4421-VB`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files: `ao4421-vb-etched.step` / `ao4421-vb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ao4421-vb.step` / `ao4421-vb.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [VBsemi Elec datasheet](docs/ao4421-vb-datasheet.pdf) (9 pp, sha256 `a348b89c8593589f`, retrieved 2026-10-27, 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/ao4421-vb-datasheet.pdf)