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CJ15-160000810B20

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Changjing Crystals, SMD2520-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CJ15-160000810B20

Changjing · Crystals · SMD2520-4P

CJ15-160000810B20 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 1 (chamfered pad in the bottom view, wired to the resonator symbol) for the 16.000MHz fundamental-mode resonator with 8pF load capacitance.
2 NC unconnected Pad 2 is not wired to the resonator in the bottom-view drawing; the datasheet does not state a function, so treat it as a non-functional solder pad.
3 XTAL2 passive Crystal terminal 2 (wired to the resonator symbol in the bottom view, diagonal to pad 1) for the 16.000MHz fundamental-mode resonator with 8pF load capacitance.
4 NC unconnected Pad 4 is not wired to the resonator in the bottom-view drawing; the datasheet does not state a function, so treat it as a non-functional solder pad.

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 -10 10 ppm 2
Frequency Temperature Stability -20 20 ppm 2
Aging ΔfA -3 3 ppm/year 2
Insulation Resistance IR 500 MΩ 2
Operating Temperature Range TOPR -40 85 °C 2
Storage Temperature Range TSTG -55 125 °C 2
Resonance Resistance 100 ohm 2
Drive Level DL 50 μW 2
Shunt Capacitance C0 2 pF 2
Nominal Frequency f 16 MHz 2
Load Capacitance CL 8 pF 2

CAD (KiCad official)

  • Symbol: CJ15-160000810B20
  • Footprint: Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm
  • 3D model: SMD2520-4P (KiCad packages3D, STEP)
  • 3D model files: cj15-160000810b20-etched.step / cj15-160000810b20-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cj15-160000810b20.step / cj15-160000810b20.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (6 pp, sha256 1e7a03576b7ed7d8, 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