# 3TG427000UYFBC

**JYJE** · Crystals · SMD3225-4P

3TG427000UYFBC from JYJE, 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 (pin with the chamfered pad corner), connected to one side of the 27.000MHz resonator, with 15pF load capacitance specified. |
| 2 | GND | power_in | Ground connection, marked GND in the connection diagram. |
| 3 | XTAL2 | passive | Crystal terminal 2, connected to the other side of the 27.000MHz resonator, with 15pF load capacitance specified. |
| 4 | GND | power_in | Ground connection, marked GND in the connection diagram. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JYJE |
| 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 | ΔF/F0 | -10 |  | 10 | ppm | At 25℃±3℃ | 2 |
| Frequency Stability | TC | -20 |  | 20 | ppm | Not stated in datasheet | 2 |
| Aging Per Year | Fa | -3 |  | 3 | ppm | First Year | 2 |
| Operating Temperature Range | TOPR | -40 |  | 85 | ℃ | Not stated in datasheet | 2 |
| Storage Temperature | TSTG | -40 |  | 90 | ℃ | Not stated in datasheet | 2 |
| Insulation Resistance | IR | 500 |  |  | MΩ | At 100VDC | 2 |
| Nominal Frequency | F0 |  | 27 |  | MHz | Fundamental mode; single printed value, column not explicit | 2 |
| Load Capacitance | CL |  | 15 |  | PF | Single printed value, column not explicit | 2 |
| Equivalent Series Resistance | ESR |  | 60 |  | Ω | Single printed value, column not explicit | 2 |
| Drive Level | DL |  | 100 |  | μW | Single printed value, column not explicit | 2 |
| Shunt Capacitance | C0 |  | 5 |  | PF | Single printed value, column not explicit | 2 |

## CAD (KiCad official)

- Symbol: `3TG427000UYFBC`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `3tg427000uyfbc-etched.step` / `3tg427000uyfbc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `3tg427000uyfbc.step` / `3tg427000uyfbc.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JYJE datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590182803087663104) (6 pp, sha256 `afc8f8d1a042544b`, retrieved 2026-10-13, 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/3tg427000uyfbc-datasheet.pdf)