# 2TJ427000UYFBC

**JYJE** · Crystals · SMD2520-4P

2TJ427000UYFBC from JYJE, in a SMD2520-4P. 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, connected to one side of the resonator in the connection diagram (12.0MHz to 66.0MHz fundamental, CL 6pf to 15pf). |
| 2 | GND | power_in | Ground pin marked GND in the connection diagram, not connected to the resonator. |
| 3 | XTAL2 | passive | Crystal terminal 2, connected to the other side of the resonator in the connection diagram (12.0MHz to 66.0MHz fundamental, CL 6pf to 15pf). |
| 4 | GND | power_in | Ground pin marked GND in the connection diagram, not connected to the resonator. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JYJE |
| Package | SMD2520-4P |
| 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 |
|---|---|---|---|---|---|---|---|
| Equivalent series resistance | ESR |  |  | 40 | ohm | 25.000-30.000 MHz, Fundamental | 1 |
| Shunt capacitance | C0 |  |  | 7 | pF |  | 1 |
| Aging |  | -3 |  | 3 | ppm/year | 25℃, maximum | 1 |
| Insulation resistance |  | 500 |  |  | Mohm | at DC 100V | 1 |
| Load capacitance | CL | 6 |  | 15 | pF | or specify | 1 |
| Drive level |  | 10 |  | 50 | uW | Typical | 1 |
| Frequency range |  | 12 |  | 66 | MHz | Fundamental | 1 |

## CAD (KiCad official)

- Symbol: `2TJ427000UYFBC`
- Footprint: `Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm`
- 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files: `2tj427000uyfbc-etched.step` / `2tj427000uyfbc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2tj427000uyfbc.step` / `2tj427000uyfbc.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JYJE datasheet](docs/2tj427000uyfbc-datasheet.pdf) (1 pp, sha256 `fced20f26bb93b05`, retrieved 2026-10-26, 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/2tj427000uyfbc-datasheet.pdf)