component

Q25000C018

Public Made by Adom

by adom

ECEC(ZheJiang E ast Crystal Elec) Crystals, SMD2520-4P. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.

componentcrystals, oscillators, resonatorsq25000c018factory-2.0.0extractor-text
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Q25000C018

ECEC(ZheJiang E ast Crystal Elec) · Crystals · SMD2520-4P

Q25000C018 from ECEC(ZheJiang E ast Crystal Elec), 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 connected to the quartz element (marked with the chamfered pad corner), for the 25.000000 MHz fundamental-mode crystal with 10 pF load capacitance.
2 CASE_GND passive Pad connected to the metal cover (lid) and not to the quartz element, normally grounded or left unconnected.
3 XTAL2 passive Crystal terminal connected to the quartz element, the second oscillator connection for the 25.000000 MHz crystal.
4 CASE_GND passive Pad connected to the metal cover (lid) and not to the quartz element, normally grounded or left unconnected.

Key specifications

Parameter Value
Manufacturer ECEC(ZheJiang E ast Crystal Elec)
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 Resistance Rr 60 Ω 3
Shunt Capacitance C0 2 pF 3
Insulation Resistance 500 MΩ at DC 100V 3
Frequency Tolerance -10 10 ppm 3
Temperature drift (TC) -10 10 ppm 3
Aging -2 2 ppm First Year 3
Operating Temperature -20 70 ℃ 3
Storage Temperature Range -55 125 ℃ 3
Nominal Frequency FL 25 MHz 3
Drive Level DL 100 uW 3

CAD (KiCad official)

  • Symbol: Q25000C018
  • Footprint: Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm
  • 3D model: SMD2520-4P (KiCad packages3D, STEP)
  • 3D model files: q25000c018-etched.step / q25000c018-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); q25000c018.step / q25000c018.glb are the bare package body.

Provenance

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

  • Datasheet: ECEC(ZheJiang E ast Crystal Elec) datasheet (10 pp, sha256 cfd5efdc58b96a52, retrieved 2026-10-21, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF