# 8DSC250G0020L

**CHANGXING ELECTRONICS** · Crystals · SMD3225-4P

8DSC250G0020L from CHANGXING ELECTRONICS, in a SMD3225-4P. 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 connected to one side of the quartz element per the Top View Crystal Connection drawing (25.000000MHz, 20pF load capacitance). |
| 2 | NC | unconnected | Pad not connected to the crystal element in the Top View Crystal Connection drawing. |
| 3 | XTAL2 | passive | Crystal terminal connected to the opposite side of the quartz element per the Top View Crystal Connection drawing (25.000000MHz, 20pF load capacitance). |
| 4 | NC | unconnected | Pad not connected to the crystal element in the Top View Crystal Connection drawing. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | CHANGXING ELECTRONICS |
| Package | SMD3225-4P |
| Category | Crystals, Oscillators, Resonators |
| Pins | 4 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Frequency Tolerance (at 25 ℃ ± 3 ℃) |  | -10 |  | 10 | ppm | at 25 ℃ ± 3 ℃ | 2 |
| Frequency Tolerance (over operating temp. range) |  | -30 |  | 30 | ppm | Over operating temp. range | 2 |
| Aging |  | -3 |  | 3 | ppm | 1st year | 2 |
| Operating Temperature Range |  | -40 |  | 85 | ℃ |  | 2 |
| Storage Temperature Range |  | -55 |  | 125 | ℃ |  | 2 |
| Effective Resistance | Rr |  |  | 40 | Ω |  | 2 |
| Shunt Capacitance | C0 |  |  | 5 | pF |  | 2 |
| Insulation Resistance |  | 500 |  |  | MΩ | at DC 100V | 2 |
| Drive Level |  |  |  | 100 | uW |  | 2 |
| Nominal Frequency |  |  | 25 |  | MHz |  | 2 |
| Load Capacitance |  |  | 20 |  | pF |  | 2 |

## CAD (KiCad official)

- Symbol: `8DSC250G0020L`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `8dsc250g0020l-etched.step` / `8dsc250g0020l-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `8dsc250g0020l.step` / `8dsc250g0020l.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [CHANGXING ELECTRONICS datasheet](docs/8dsc250g0020l-datasheet.pdf) (6 pp, sha256 `b63b69de83f45063`, retrieved 2026-10-21, 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/8dsc250g0020l-datasheet.pdf)