# X49SM8MSB2SC

**Yangxing Tech** · Crystals · HC-49S-SMD

X49SM8MSB2SC from Yangxing Tech, in a HC-49S-SMD. 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 | 1 | passive | Terminal 1 of a two-terminal crystal; either orientation. |
| 2 | 2 | passive | Terminal 2 of a two-terminal crystal; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Yangxing Tech |
| Package | HC-49S-SMD |
| Category | Crystals/Oscillators/Resonators |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `X49SM8MSB2SC`
- Footprint: `Crystal:Crystal_SMD_HC49-SD`
- 3D model: HC-49S-SMD (KiCad packages3D, STEP)
- 3D model files: `x49sm8msb2sc-etched.step` / `x49sm8msb2sc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `x49sm8msb2sc.step` / `x49sm8msb2sc.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Yangxing Tech datasheet](docs/x49sm8msb2sc-datasheet.pdf) (1 pp, sha256 ``, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `crystal numbering` (convention), consensus `off` (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/x49sm8msb2sc-datasheet.pdf)