# 2TJ426000FYFBC

**JYJE** · Crystals · SMD2520-4P

2TJ426000FYFBC 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 crystal in the connection diagram); 12.0MHz to 66.0MHz fundamental, load capacitance 6pF to 15pF. |
| 2 | GND | power_in | Ground pin marked GND in the connection diagram. |
| 3 | XTAL2 | passive | Crystal terminal 2 (connected to the other side of the crystal in the connection diagram); drive level 10uW to 50uW typical. |
| 4 | GND | power_in | Ground pin marked GND in the connection diagram. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JYJE |
| Package | SMD2520-4P |
| 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 |
|---|---|---|---|---|---|---|---|
| Equivalent series resistance (ESR), 12.000-18.000 MHz, fundamental | ESR |  |  | 80 | ohm | Frequency range 12.000-18.000 MHz, fundamental mode | 1 |
| Equivalent series resistance (ESR), 18.000-25.000 MHz, fundamental | ESR |  |  | 60 | ohm | Frequency range 18.000-25.000 MHz, fundamental mode | 1 |
| Equivalent series resistance (ESR), 25.000-30.000 MHz, fundamental | ESR |  |  | 40 | ohm | Frequency range 25.000-30.000 MHz, fundamental mode | 1 |
| Equivalent series resistance (ESR), 30.000-66.000 MHz, fundamental | ESR |  |  | 30 | ohm | Frequency range 30.000-66.000 MHz, fundamental mode | 1 |
| Insulation resistance |  | 500 |  |  | MOhms | at DC 100V | 1 |
| Shunt capacitance (C0) | C0 |  |  | 7 | pF | Maximum | 1 |
| Aging |  | -3 |  | 3 | ppm/year | 25℃, Maximum | 1 |
| Frequency tolerance (ΔF) at 25℃, column ±10ppm as printed | ΔF | -10 |  | 10 | ppm | at 25℃ | 1 |
| Frequency tolerance (ΔF) at 25℃, column ±20ppm as printed | ΔF | -20 |  | 20 | ppm | at 25℃ | 1 |
| Frequency vs. temperature deviation, column ±10ppm as printed |  | -10 |  | 10 | ppm | Over operating temperature range, column paired with -20℃ to +70℃ as printed | 1 |
| Frequency vs. temperature deviation, column ±20ppm as printed |  | -20 |  | 20 | ppm | Over operating temperature range, column paired with -40℃ to +85℃ as printed | 1 |
| Operating temperature range, column -20℃ to +70℃ as printed |  | -20 |  | 70 | ℃ | Column as printed | 1 |
| Operating temperature range, column -40℃ to +85℃ as printed |  | -40 |  | 85 | ℃ | Column as printed | 1 |
| Storage temperature range, column -20℃ to +60℃ as printed |  | -20 |  | 60 | ℃ | Column as printed | 1 |
| Storage temperature range, column -55℃ to +125℃ as printed |  | -55 |  | 125 | ℃ | Column as printed | 1 |
| Load capacitance (CL) | CL | 6 |  | 15 | pF | or specify | 1 |
| Drive level |  | 10 |  | 50 | uW | Typical | 1 |
| Frequency range (fundamental) |  | 12 |  | 66 | MHz | Fundamental mode | 1 |

## CAD (KiCad official)

- Symbol: `2TJ426000FYFBC`
- Footprint: `Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm`
- 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files: `2tj426000fyfbc-etched.step` / `2tj426000fyfbc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2tj426000fyfbc.step` / `2tj426000fyfbc.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/8590174166755274752) (1 pp, sha256 `fced20f26bb93b05`, retrieved 2026-10-16, 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/2tj426000fyfbc-datasheet.pdf)