component
CJ15-260001907B15
Public Made by Adomby adom
Changjing Crystals, SMD2520-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
Ray
Publish 0.1.0
f1088c5
CJ15-260001907B15
Changjing · Crystals · SMD2520-4P
CJ15-260001907B15 from Changjing, 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, the chamfered pad-1 marker pad in the bottom view, wired to one side of the 26MHz resonator element. |
| 2 | NC | unconnected | Pad 2 has no connection to the resonator element in the bottom-view drawing, so it is left unconnected or tied to ground. |
| 3 | XTAL2 | passive | Crystal terminal, wired to the other side of the 26MHz resonator element, diagonally opposite pad 1. |
| 4 | NC | unconnected | Pad 4 has no connection to the resonator element in the bottom-view drawing, so it is left unconnected or tied to ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| 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 |
|---|---|---|---|---|---|---|---|
| Frequency Tolerance | Δf/f | -7 | 7 | ppm | 2 | ||
| Frequency Temperature Stability | Δf/f | -15 | 15 | ppm | 2 | ||
| Aging | ΔfA | -3 | 3 | ppm | per year | 2 | |
| Resonance Resistance | R1 | 80 | ohm | 2 | |||
| Shunt Capacitance | C0 | 2 | pF | 2 | |||
| Drive Level | DL | 50 | μW | 2 | |||
| Insulation Resistance | IR | 500 | M ohms | 2 | |||
| Operating Temperature Range | TOPR | -40 | 85 | °C | 2 | ||
| Storage Temperature Range | TSTG | -55 | 125 | °C | 2 | ||
| Nominal Frequency | f | 26 | MHz | 2 | |||
| Load Capacitance | CL | 19 | pF | 2 |
CAD (KiCad official)
- Symbol:
CJ15-260001907B15 - Footprint:
Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm - 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files:
cj15-260001907b15-etched.step/cj15-260001907b15-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cj15-260001907b15.step/cj15-260001907b15.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (6 pp, sha256
01685e13f6d7d6cf, retrieved 2026-11-06, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).
# CJ15-260001907B15
**Changjing** · Crystals · SMD2520-4P
CJ15-260001907B15 from Changjing, 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, the chamfered pad-1 marker pad in the bottom view, wired to one side of the 26MHz resonator element. |
| 2 | NC | unconnected | Pad 2 has no connection to the resonator element in the bottom-view drawing, so it is left unconnected or tied to ground. |
| 3 | XTAL2 | passive | Crystal terminal, wired to the other side of the 26MHz resonator element, diagonally opposite pad 1. |
| 4 | NC | unconnected | Pad 4 has no connection to the resonator element in the bottom-view drawing, so it is left unconnected or tied to ground. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| 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 |
|---|---|---|---|---|---|---|---|
| Frequency Tolerance | Δf/f | -7 | | 7 | ppm | | 2 |
| Frequency Temperature Stability | Δf/f | -15 | | 15 | ppm | | 2 |
| Aging | ΔfA | -3 | | 3 | ppm | per year | 2 |
| Resonance Resistance | R1 | | | 80 | ohm | | 2 |
| Shunt Capacitance | C0 | | | 2 | pF | | 2 |
| Drive Level | DL | | | 50 | μW | | 2 |
| Insulation Resistance | IR | 500 | | | M ohms | | 2 |
| Operating Temperature Range | TOPR | -40 | | 85 | °C | | 2 |
| Storage Temperature Range | TSTG | -55 | | 125 | °C | | 2 |
| Nominal Frequency | f | | 26 | | MHz | | 2 |
| Load Capacitance | CL | | 19 | | pF | | 2 |
## CAD (KiCad official)
- Symbol: `CJ15-260001907B15`
- Footprint: `Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm`
- 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files: `cj15-260001907b15-etched.step` / `cj15-260001907b15-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cj15-260001907b15.step` / `cj15-260001907b15.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Changjing datasheet](docs/cj15-260001907b15-datasheet.pdf) (6 pp, sha256 `01685e13f6d7d6cf`, retrieved 2026-11-06, tier: lcsc)
- **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/cj15-260001907b15-datasheet.pdf)