# 2TJ424000HYFBC

**JYJE** · Crystals · SMD2520-4P

2TJ424000HYFBC 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 element; load capacitance CL 6pf to 15pf or as specified. |
| 2 | GND | power_in | Ground pin, labelled GND in the connection diagram (case/ground connection). |
| 3 | XTAL2 | passive | Crystal terminal 2, connected to the other side of the crystal element; drive level 10uW to 50uW typical. |
| 4 | GND | power_in | Ground pin, labelled GND in the connection diagram (case/ground connection). |

## 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 |
|---|---|---|---|---|---|---|---|
| Shunt Capacitance | C0 |  |  | 7 | pf |  | 1 |
| Insulation Resistance |  | 500 |  |  | Mohms | at DC 100V | 1 |
| Aging |  | -3 |  | 3 | ppm/year | at 25℃, maximum | 1 |
| Frequency Tolerance (ΔF) | ΔF | -10 |  | 10 | ppm | at 25℃, ±10ppm option | 1 |
| Frequency Tolerance (ΔF) | ΔF | -20 |  | 20 | ppm | at 25℃, ±20ppm option | 1 |
| Frequency Drift |  | -10 |  | 10 | ppm | ±10ppm option | 1 |
| Frequency Drift |  | -20 |  | 20 | ppm | ±20ppm option | 1 |
| Equivalent Series Resistance (ESR) |  |  |  | 80 | ohm | 12.000-18.000 MHz, fundamental mode | 1 |
| Equivalent Series Resistance (ESR) |  |  |  | 60 | ohm | 18.000-25.000 MHz, fundamental mode | 1 |
| Equivalent Series Resistance (ESR) |  |  |  | 40 | ohm | 25.000-30.000 MHz, fundamental mode | 1 |
| Equivalent Series Resistance (ESR) |  |  |  | 30 | ohm | 30.000-66.000 MHz, fundamental mode | 1 |
| Load Capacitance | CL | 6 |  | 15 | pf | or specify (customer-specified load) | 1 |
| Frequency Range | f | 12 |  | 66 | MHz | Fundamental mode, 2TJ4 series range | 1 |
| Operating Temperature Range |  | -20 |  | 70 | ℃ |  | 1 |
| Operating Temperature Range |  | -40 |  | 85 | ℃ |  | 1 |
| Storage Temperature Range |  | -20 |  | 60 | ℃ |  | 1 |
| Storage Temperature Range |  | -55 |  | 125 | ℃ |  | 1 |

## CAD (KiCad official)

- Symbol: `2TJ424000HYFBC`
- Footprint: `Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm`
- 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files: `2tj424000hyfbc-etched.step` / `2tj424000hyfbc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2tj424000hyfbc.step` / `2tj424000hyfbc.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/8590174166776786944) (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/2tj424000hyfbc-datasheet.pdf)