# 1C210000AB0G

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

1C210000AB0G 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 | Terminal #1 is connected to the quartz crystal element and is one of the two active terminals of the resonator. |
| 2 | #2 | unconnected | Terminal #2 is open (unconnected) internally and is not electrically connected to the quartz element. |
| 3 | #3 | passive | Terminal #3 is connected to the quartz crystal element and is the second active terminal of the resonator. |
| 4 | #4 | unconnected | Terminal #4 is open (unconnected) internally and is not electrically connected to the quartz element. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | KDS Daishinku |
| 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 |  | -10 |  | 10 | ppm | at +25 ± 3 °C | 2 |
| Frequency characteristics over temperature (ref. to +25°C) |  | -20 |  | 20 | ppm | -20 ~ +75 °C, ref. to +25 °C | 2 |
| Series resistance |  |  |  | 150 | Ω | at Series | 2 |
| Shunt capacitance |  |  |  | 2 | pF |  | 2 |
| Insulation resistance |  | 500 |  |  | MΩ | DC 100 ± 15V | 2 |
| Drive level |  | -2 | 10 | 2 | μW |  | 2 |
| Operating temperature range |  | -20 |  | 75 | °C |  | 2 |
| Storage temperature range |  | -40 |  | 85 | °C |  | 2 |
| Nominal frequency |  |  | 10 |  | MHz |  | 2 |
| Load capacitance (CL) |  |  | 15 |  | pF |  | 2 |
| Reflow total time |  |  |  | 240 | s | reflow soldering, total time (reference) | 8 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | Polyester |  | Cover tape Polyester | 5 |
| contacts |  | gold | Plating material of a terminal. : Ni Plating + Au Plating. A clearance between the soldering terminal portion and a print circuit board side should be less than 0.1mm. | 3 |

## CAD (KiCad official)

- Symbol: `1C210000AB0G`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `1c210000ab0g-etched.step` / `1c210000ab0g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1c210000ab0g.step` / `1c210000ab0g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [KDS Daishinku datasheet](docs/1c210000ab0g-datasheet.pdf) (13 pp, sha256 `36199b2bef970cfb`, retrieved 2026-10-28, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/1c210000ab0g-datasheet.pdf)