# FH3415N

**XIN FEI HONG** · MOSFETs · SOT-23

FH3415N from XIN FEI HONG, in a SOT-23. 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; drawn at bottom left of the top view, with VGS rated ±12 V maximum and threshold VGS(th) of -0.4 to -1.0 V at ID=-250µA. |
| 2 | S | passive | Source; drawn at bottom right of the top view, with continuous body-diode current IS of -3.2 A. |
| 3 | D | passive | Drain; the single pin on the top side of the package, with VDS rated -20 V and ID of -3.2 A at TA=25℃. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | XIN FEI HONG |
| Package | SOT-23 |
| Category | Triode/MOS Tube/Transistor |
| Pins | 3 |

## 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 |  | 1 |
| Gate-source voltage | VGS | -12 |  | 12 | V |  | 1 |
| Drain current | ID |  |  | -3.2 | A | TA=25℃ | 1 |
| Drain current | ID |  |  | -2.55 | A | TA=70℃ | 1 |
| Pulsed drain current | IDM |  |  | -12.8 | A |  | 1 |
| Total power dissipation | PD |  |  | 1 | W | TA=25℃ | 1 |
| Thermal resistance junction-to-ambient | RθJA |  |  | 134 | ℃/W | Device mounted on FR-4 PCB, 1 inch x 0.85 inch x 0.062 inch (footnote B) | 1 |
| Junction and storage temperature range | TJ ,TSTG | -55 |  | 150 | ℃ |  | 1 |
| Drain-source breakdown voltage | BVDSS | -20 |  |  | V | VGS= 0V, ID=-250μA | 2 |
| Zero gate voltage drain current | IDSS |  |  | -1 | μA | VDS=-20V,VGS=0V,TC=25℃ | 2 |
| Gate-body leakage current | IGSS | -100 |  | 100 | nA | VGS= ±12V, VDS=0V | 2 |
| Gate threshold voltage | VGS(th) | -0.4 | -0.65 | -1 | V | VDS= VGS, ID=-250μA | 2 |
| Static drain-source on-resistance | RDS(ON) |  | 55 | 69 | mΩ | VGS= -4.5V, ID= -3A | 2 |
| Static drain-source on-resistance | RDS(ON) |  | 69 | 88 | mΩ | VGS= -2.5V, ID= -2A | 2 |
| Static drain-source on-resistance | RDS(ON) |  | 52 | 67 | mΩ | VGS= -5.0V, ID= - 1A | 2 |
| Diode forward voltage | VSD |  | -0.8 | -1.2 | V | IS=-3A,VGS=0V | 2 |
| Maximum body-diode continuous current | IS |  |  | -3.2 | A |  | 2 |

## CAD (KiCad official)

- Symbol: `FH3415N`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `fh3415n-etched.step` / `fh3415n-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fh3415n.step` / `fh3415n.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [XIN FEI HONG datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590393584152449024) (5 pp, sha256 `531ac50f694958f2`, retrieved 2026-10-17, 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/fh3415n-datasheet.pdf)