# 1C209830BC0C

**KDS Daishinku** · Crystals · SMD3225-4P

1C209830BC0C from KDS Daishinku, 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 | 1 | passive | Crystal terminal of the 9.830400 MHz DSX321G unit (CL 12.0 pF, drive level 10 uW +/- 2 uW); the datasheet does not label it further. |
| 2 | 2 | passive | Datasheet states Pin #2 and #4 either are not connected with anything or must be connected with GND (both notes printed, unresolved). |
| 3 | 3 | passive | Crystal terminal of the 9.830400 MHz DSX321G unit (CL 12.0 pF, drive level 10 uW +/- 2 uW); the datasheet does not label it further. |
| 4 | 4 | passive | Datasheet states Pin #2 and #4 either are not connected with anything or must be connected with GND (both notes printed, unresolved). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | KDS Daishinku |
| Package | SMD3225-4P |
| Category | Crystal Oscillator/Oscillator/Resonator |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal frequency |  |  | 9.8304 |  | MHz |  | 1 |
| Load capacitance | CL |  | 12 |  | pF |  | 1 |
| Frequency tolerance |  | -20 |  | 20 | ×10-6 | at 25 deg.C +/- 3 deg.C | 1 |
| Frequency characteristics over temperature |  | -30 |  | 30 | ×10-6 | -20 deg.C to +70 deg.C (ref. +25 deg.C) | 1 |
| Series resistance |  |  |  | 150 | ohms | CL = SERIES | 1 |
| Shunt capacitance | C0 |  |  | 2 | pF |  | 1 |
| Insulation resistance |  | 500 |  |  | Mohms | at 100V DC | 1 |
| Operating temperature range |  | -20 |  | 70 | deg.C |  | 1 |
| Storage temperature range |  | -40 |  | 85 | deg.C |  | 1 |
| Drive level |  | 8 | 10 | 12 | uW | 10 uW +/- 2 uW | 1 |

## CAD (KiCad official)

- Symbol: `1C209830BC0C`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `1c209830bc0c-etched.step` / `1c209830bc0c-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1c209830bc0c.step` / `1c209830bc0c.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [KDS Daishinku datasheet](docs/1c209830bc0c-datasheet.pdf) (1 pp, sha256 `bacfd2d2bbc515dd`, retrieved 2026-10-26, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-sonnet-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/1c209830bc0c-datasheet.pdf)