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Contents

README

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CF4050M00009

JWT · Crystals · SMD3225-4P

CF4050M00009 from JWT, 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 XTAL1 passive Crystal terminal 1 (pin-1 notch corner), connected through the crystal element to pin 3; 50.000 MHz fundamental AT-cut, CL 9 pF.
2 GND power_in Ground pad, connected to the metal lid per the crystal connection drawing.
3 XTAL2 passive Crystal terminal 2, connected through the crystal element to pin 1; drive level 1 to 300 uW (100 uW typ).
4 GND power_in Ground pad, connected to the metal lid per the crystal connection drawing.

Key specifications

Parameter Value
Manufacturer JWT
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 deviation FL -10 10 ppm 25±2℃ 4
Temperature frequency deviation TC -20 20 ppm 基准温度:25℃ 4
Operating temperature -40 85 ℃ 4
Drive level DL 1 100 300 uW 4
Motional resistance RR 40 Ω 4
Shunt capacitance C0 3 pF 4
Insulation resistance IR 500 MΩ at DC 100V 4
Spurious attenuation SPDB -3 dB F0±500KHz 4
Aging rate -3 3 ppm First year 4
Storage temperature range -55 125 ℃ 4
Nominal frequency F0 50 MHz 4
Load capacitance CL 9 pF 4

CAD (KiCad official)

  • Symbol: CF4050M00009
  • Footprint: Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm
  • 3D model: SMD3225-4P (KiCad packages3D, STEP)
  • 3D model files: cf4050m00009-etched.step / cf4050m00009-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cf4050m00009.step / cf4050m00009.glb are the bare package body.

Provenance

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

  • Datasheet: JWT datasheet (10 pp, sha256 e77509c4772a49a4, retrieved 2026-10-15, 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