# FC2712

**GUOXIN JIAPIN SEMICONDUCTOR** · Operational Amplifier · SOT-363

FC2712 from GUOXIN JIAPIN SEMICONDUCTOR, in a SOT-363. 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 | IN | input | RF input with 50 ohm port impedance, AC-coupled through a 1000 pF capacitor in the test circuit. |
| 2 | GND1 | power_in | Ground connection, tied to ground together with pins 3 and 5 in the test circuit. |
| 3 | GND2 | power_in | Ground connection, tied to ground together with pins 2 and 5 in the test circuit. |
| 4 | OUT | output | RF output with 50 ohm port impedance, AC-coupled through a 1000 pF capacitor in the test circuit. |
| 5 | GND | power_in | Ground connection, tied to ground together with pins 2 and 3 in the test circuit. |
| 6 | VDD | power_in | Supply pin (Vcc in the test circuit) with typical 5 V and 10.7 mA operating current, decoupled with a 1000 pF capacitor. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | GUOXIN JIAPIN SEMICONDUCTOR |
| Package | SOT-363 |
| Category | Operational Amplifier/Comparator |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `FC2712`
- Footprint: `Package_TO_SOT_SMD:SOT-363_SC-70-6`
- 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files: `fc2712-etched.step` / `fc2712-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fc2712.step` / `fc2712.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [GUOXIN JIAPIN SEMICONDUCTOR datasheet](docs/fc2712-datasheet.pdf) (3 pp, sha256 `1e4715f3cc920f26`, retrieved 2026-11-05, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/fc2712-datasheet.pdf)