# KY6801

**KY** · MOSFETs · SOT-23-6L

KY6801 from KY, in a SOT-23-6L. 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 | G1 | input | Gate of channel 1, rated for a gate-source voltage of ±12 V maximum. |
| 2 | S2 | passive | Source of channel 2, part of the device rated for a drain-source voltage of -20 V. |
| 3 | G2 | input | Gate of channel 2, rated for a gate-source voltage of ±12 V maximum. |
| 4 | D2 | passive | Drain of channel 2, rated for a drain-source voltage of -20 V with a continuous drain current of -2.0 A at VGS = -4.5 V. |
| 5 | S1 | passive | Source of channel 1, part of the device rated for a drain-source voltage of -20 V. |
| 6 | D1 | passive | Drain of channel 1, rated for a drain-source voltage of -20 V with a continuous drain current of -2.0 A at VGS = -4.5 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | KY |
| Package | SOT-23-6L |
| Category | Triode/MOS Tube/Transistor |
| Pins | 6 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Drain-Source Voltage | VDS |  |  | -20 | V | Ta = 25 ℃ | 1 |
| Gate-Source Voltage | VGS | -12 |  | 12 | V | Ta = 25 ℃ | 1 |
| Drain Current | ID |  |  | -2 | A | Ta = 25 ℃, VGS = -4.5 V | 1 |
| Pulsed Drain Current | IDM |  |  | -8 | A | Ta = 25 ℃, VGS = -2.5 V | 1 |
| Total Power Dissipation | Ptot |  |  | 0.83 | W | Ta = 25 ℃ | 1 |
| Storage Temperature | Tstg | -55 |  | 150 | ℃ |  | 1 |
| Junction Temperature | TJ |  |  | 150 | ℃ |  | 1 |
| Thermal Resistance Junction to Ambient | RθJA |  |  | 150 | ℃ / W |  | 1 |
| Drain-Source Breakdown Voltage | BVDSS | -20 |  |  | V | VGS = 0 V, IDS = -250 μA | 2 |
| Gate Threshold Voltage | VGS(th) | -0.4 | -0.65 | -1 | V | VDS = VGS, IDS = -250 μA | 2 |
| Drain Leakage Current | IDSS |  |  | -1 | μA | VDS = -19 V, VGS = 0 V | 2 |
| Gate Leakage Current | IGSS | -100 |  | 100 | nA | VGS = ± 12 V, VDS = 0 V | 2 |
| Channel On-State Resistance | RDS(ON) |  | 120 | 150 | mΩ | VGS = -4.5 V, ID = -2.0 A | 2 |
| Channel On-State Resistance | RDS(ON) |  | 160 | 230 | mΩ | VGS = -2.5 V, ID = -1.5 A | 2 |
| Diode Forward Voltage | VSD |  |  | 1.2 | V | ISD = -2.0 A, VGS = 0 V | 2 |

## CAD (KiCad official)

- Symbol: `KY6801`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6L (KiCad packages3D, STEP)
- 3D model files: `ky6801-etched.step` / `ky6801-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ky6801.step` / `ky6801.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [KY datasheet](docs/ky6801-datasheet.pdf) (6 pp, sha256 `1b0c319d69558d54`, retrieved 2026-10-28, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed (audit)), 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/ky6801-datasheet.pdf)