# SW308CBCUH0-0.032768

**Starwave(思大)** · Crystals · DT-38

SW308CBCUH0-0.032768 from Starwave(思大), in a DT-38. 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 | Starwave(思大) |
| Package | DT-38 |
| Category | Crystals, Oscillators, Resonators |
| Pins | 2 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Effective Series Resistance |  |  |  | 35 | KOhms |  | 5 |
| Shunt Capacitance (C0) | C0 |  |  | 7 | pF |  | 5 |
| Motional Capacitance (C1) | C1 |  |  | 1.9 | fF |  | 5 |
| Insulation Resistance |  | 500 |  |  | MOhms | at DC 100V | 5 |
| Frequency Tolerance |  | -20 |  | 20 | ppm | at 25 C | 5 |
| Stability Over Temperature Range |  | -30 |  | 30 | ppm | over operation temperature range, related to 25 C | 5 |
| Aging |  | -3 |  | 3 | ppm / year |  | 5 |
| Operation Temperature Range |  | -20 |  | 70 | C |  | 5 |
| Storage Temperature Range |  | -40 |  | 85 | C | storage | 5 |
| Nominal Frequency |  |  | 32.768 |  | KHz |  | 5 |
| Load Capacitance |  |  | 12.5 |  | pF |  | 5 |
| Drive Level |  |  | 500 |  | uW |  | 5 |

## CAD (KiCad official)

- Symbol: `SW308CBCUH0-0.032768`
- Footprint: `Crystal:Crystal_C38-LF_D3.0mm_L8.0mm_Vertical`
- 3D model: DT-38 (KiCad packages3D, STEP)
- 3D model files: `sw308cbcuh0-0-032768-etched.step` / `sw308cbcuh0-0-032768-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sw308cbcuh0-0-032768.step` / `sw308cbcuh0-0-032768.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Starwave(思大) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603323058031636480) (8 pp, sha256 ``, retrieved 2026-10-17, 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/sw308cbcuh0-0-032768-datasheet.pdf)