# TX322512M4DBDE2T

**Yajingxin** · Crystals · SMD3225-4P

TX322512M4DBDE2T from Yajingxin, 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 1 of the 12.000000 MHz fundamental-mode resonator (CL 10 pF, drive level 100 uW max); interchangeable with pin 3 per the connection drawing. |
| 2 | GND | power_in | Ground pad, labelled GND in the top-view connection drawing; typically tied to circuit ground. |
| 3 | XTAL2 | passive | Crystal terminal 2 of the 12.000000 MHz resonator (equivalent resistance 60 ohm max, shunt capacitance 0 to 5 pF). |
| 4 | GND | power_in | Ground pad, labelled GND in the top-view connection drawing; typically tied to circuit ground. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Yajingxin |
| 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℃ (adjustment frequency difference) |  | -10 |  | 10 | ppm | at 25℃ | 2 |
| Stability over operation temperature (temperature frequency difference) |  | -30 |  | 30 | ppm | over operating temperature range | 2 |
| Aging |  | -5 |  | 5 | ppm/year |  | 2 |
| Shunt Capacitance (Co) | Co | 0 |  | 5 | pF |  | 2 |
| Equivalent Resistance (series resonance resistance) |  |  |  | 60 | Ω |  | 2 |
| Insulation Resistance |  | 500 |  |  | MΩ | at DC 100V | 2 |
| Operating Temperature Range |  | -30 |  | 85 | ℃ |  | 2 |
| Storage Temperature Range |  | -40 |  | 85 | ℃ |  | 2 |
| Drive Level |  |  | 100 |  | uw |  | 2 |
| Peak/Classification Temperature (Tp) | Tp |  |  | 260 | ℃ | Pb-free reflow profile | 3 |
| Average Ramp-up Rate (Ts max to Tp) |  |  |  | 3 | ℃/second | Pb-free reflow profile | 3 |
| Ramp-down rate |  |  |  | 6 | ℃/second | Pb-free reflow profile | 3 |
| Time 25℃ to Peak Temperature |  |  |  | 8 | minutes | Pb-free reflow profile | 3 |
| Suggested reflow times |  |  |  | 3 | times |  | 3 |
| Nominal frequency (frequency, as printed for this MPN) |  |  | 12 |  | MHZ | Fundamental mode | 2 |

## CAD (KiCad official)

- Symbol: `TX322512M4DBDE2T`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `tx322512m4dbde2t-etched.step` / `tx322512m4dbde2t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tx322512m4dbde2t.step` / `tx322512m4dbde2t.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Yajingxin datasheet](docs/tx322512m4dbde2t-datasheet.pdf) (5 pp, sha256 `4bbb339a282f6d9f`, retrieved 2026-10-21, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/tx322512m4dbde2t-datasheet.pdf)