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Contents

README

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K3A400001810

KYX · Crystals · SMD3225-4P

K3A400001810 from KYX, in a SMD3225-4P. 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 1 passive Crystal terminal at pad #1 (marked with the chamfer/index corner in the 3.2x2.5 mm package drawing), the datasheet gives no electrical function text.
2 2 passive Pad #2 of the 3.2x2.5 mm package; the datasheet drawing gives no stated function for it.
3 3 passive Crystal terminal at pad #3, diagonally opposite pad #1 in the drawing; the datasheet gives no electrical function text.
4 4 passive Pad #4 of the 3.2x2.5 mm package; the datasheet gives no stated function for it.

Key specifications

Parameter Value
Manufacturer KYX
Package SMD3225-4P
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
Frequency tolerance -10 10 ppm at 25°C ±3°C 2
Frequency characteristics over temperature -20 20 ppm -40°C to +85°C 2
Aging -3 3 ppm/Year 2
Equivalent series resistance ESR 30 Ω 2
Shunt capacitance C0 5 pF 2
Insulation resistance 500 MΩ at 100 V 2
Nominal frequency 40 MHz 2
Load capacitance CL 18 pF 2
Drive level 100 μW 2
Operating temperature range -40 85 °C 2
Storage temperature range -40 85 °C 2

CAD (KiCad official)

  • Symbol: K3A400001810
  • Footprint: Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm
  • 3D model: SMD3225-4P (KiCad packages3D, STEP)
  • 3D model files: k3a400001810-etched.step / k3a400001810-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); k3a400001810.step / k3a400001810.glb are the bare package body.

Provenance

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

  • Datasheet: KYX datasheet (6 pp, sha256 fbea9d7ba1d4562d, 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