# X201632MMB4SI

**Yangxing Tech** · Crystals · SMD2016-4P

X201632MMB4SI from Yangxing Tech, in a SMD2016-4P. 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 | XTAL1 | passive | Crystal terminal, diagonal to pin 3; the land pattern labels only #2 and #4 as GND, so #1 is a crystal connection. |
| 2 | GND | power_in | Ground connection, labelled GND on the recommended land pattern (Top View Crystal Connection). |
| 3 | XTAL2 | passive | Crystal terminal, diagonal to pin 1; the land pattern labels only #2 and #4 as GND, so #3 is a crystal connection. |
| 4 | GND | power_in | Ground connection, labelled GND on the recommended land pattern (Top View Crystal Connection). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Yangxing Tech |
| Package | SMD2016-4P |
| Category | Crystals/Oscillators/Resonators |
| Pins | 4 |

## CAD (KiCad official)

- Symbol: `X201632MMB4SI`
- Footprint: `Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm`
- 3D model: SMD2016-4P (KiCad packages3D, STEP)
- 3D model files: `x201632mmb4si-etched.step` / `x201632mmb4si-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `x201632mmb4si.step` / `x201632mmb4si.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Yangxing Tech datasheet](docs/x201632mmb4si-datasheet.pdf) (1 pp, sha256 `a04912f4671b1e22`, retrieved 2026-10-21, 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/x201632mmb4si-datasheet.pdf)