# FDB3502-JSM

**JSMSEMI** · MOSFETs · TO-263-2L

FDB3502-JSM from JSMSEMI, in a TO-263-2L. 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 | G | input | Gate (Pin1); gate-source voltage limited to ±20V with threshold VGS(th) of 2.0V min to 4.0V max at ID = 250µA. |
| 2 | D | passive | Drain (Pin2), also the tab; drain-source voltage rated 80V, continuous drain current 20A and pulsed 80A. |
| 3 | S | passive | Source (Pin3); continuous body diode current is 20A max and pulsed diode forward current is 80A max. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | TO-263-2L |
| Category | Triode/MOS Tube/Transistor |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `FDB3502-JSM`
- Footprint: `Package_TO_SOT_SMD:TO-263-2`
- 3D model: TO-263-2L (KiCad packages3D, STEP)
- 3D model files: `fdb3502-jsm-etched.step` / `fdb3502-jsm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fdb3502-jsm.step` / `fdb3502-jsm.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JSMSEMI datasheet](docs/fdb3502-jsm-datasheet.pdf) (6 pp, sha256 `db975f839805d6c8`, retrieved 2026-10-26, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/fdb3502-jsm-datasheet.pdf)