# TAXM12M4RFBCCT2T

**TAE(Zhejiang Abel Elec)** · Crystals · SMD3225-4P

TAXM12M4RFBCCT2T from TAE(Zhejiang Abel Elec), 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 | Pad 1, marked with the chamfered corner on the 3.2x2.5 mm outline; the bottom-view drawing shows it wired to the crystal element, 12.000MHz nominal at 12pF load capacitance. |
| 2 | 2 | passive | Pad 2 on the 3.2x2.5 mm outline; the drawing gives no function label for it, and the 4-pad crystal's second pad is assumed to be a no-function or case pad. |
| 3 | 3 | passive | Pad 3 on the 3.2x2.5 mm outline; the bottom-view drawing shows it wired to the crystal element, the second crystal terminal diagonal to pad 1. |
| 4 | 4 | passive | Pad 4 on the 3.2x2.5 mm outline; the drawing gives no function label for it, and it is assumed to be a no-function or case pad. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TAE(Zhejiang Abel Elec) |
| 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°C) |  | -10 |  | 10 | ppm | Measure at 25℃±3℃ | 4 |
| Frequency Stability |  | -20 |  | 20 | ppm |  | 4 |
| Aging Per Year |  | -3 |  | 3 | ppm | Per year | 4 |
| Nominal Frequency |  |  | 12 |  | MHz | Nominal frequency 12.000MHz, AT-Fund (fundamental mode) | 4 |
| Load Capacitance |  |  | 12 |  | pF |  | 4 |
| Equivalent Series Resistance |  |  |  | 60 | Ω |  | 4 |
| Drive Level |  |  | 10 | 100 | μW |  | 4 |
| Insulation Resistance |  | 500 |  |  | MΩ | At 250VDC | 4 |
| Shunt Capacitance |  |  |  | 3 | pF |  | 4 |
| Operating Temperature Range |  | -40 |  | 85 | ℃ |  | 4 |
| Storage Temperature Range |  | -55 |  | 125 | ℃ |  | 4 |

## 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 |
|---|---|---|---|---|
| contacts |  | gold | 6 引脚PIN 可伐合金镀金KOVAR Au plating SHENZHEN YAJINGXIN ELECTRONICS CO.,LTD | 8 |

## CAD (KiCad official)

- Symbol: `TAXM12M4RFBCCT2T`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `taxm12m4rfbcct2t-etched.step` / `taxm12m4rfbcct2t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `taxm12m4rfbcct2t.step` / `taxm12m4rfbcct2t.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TAE(Zhejiang Abel Elec) datasheet](docs/taxm12m4rfbcct2t-datasheet.pdf) (10 pp, sha256 `d7bfd9a237001758`, 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/taxm12m4rfbcct2t-datasheet.pdf)