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ECS-147.4-18-5PLX-AGN-TR

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ECS Crystals, HC-49S-SMD. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componentcrystal oscillator-oscillator-resonatorecs-147.4-18-5plx-agn-trfactory-2.0.0extractor-text

Changed since verified ECS-147.4-18-5PLX-AGN-TR

by Ray · last 30 Oct 2026 · 1 record · files changed since
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier lcsc, 2 pinschanged since
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: ECS-147.4-18-5PLX-AGN-TR · HC-49S-SMD · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: unpolarised two-terminal part: pins 1 and 2 by library convention, no names to check
  • ✓distributor: lcsc C2450477, digikey XC2788TR-ND, mouser 520-147.418-5PLXAGN
  • ✓family: Crystal_SMD_HC49-SD
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-uzb6du9r/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files! ecs-147-4-18-5plx-agn-tr.kicad_sym✓ ecs-147-4-18-5plx-agn-tr.kicad_mod✓ ecs-147-4-18-5plx-agn-tr.step
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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

markdown

ECS-147.4-18-5PLX-AGN-TR

ECS · Crystals · HC-49S-SMD

ECS-147.4-18-5PLX-AGN-TR from ECS, in a HC-49S-SMD. 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 Terminal 1 of a two-terminal crystal; either orientation.
2 2 passive Terminal 2 of a two-terminal crystal; either orientation.

Key specifications

Parameter Value
Manufacturer ECS
Package HC-49S-SMD
Category Crystal Oscillator/Oscillator/Resonator
Pins 2

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 (P/N suffix A = ±25 ppm) -25 25 ppm @ +25°C; tolerance decoded from P/N suffix A, not the ±30 ppm printed for the CSM-7X standard 1
Aging (first year) -5 5 ppm First year @ +25°C ±3°C 1
Frequency range 3.57 70 MHz 1
Storage Temperature Tstg -55 125 °C 1
Shunt Capacitance Co 7 pF 1
Drive Level DL 500 μW 1

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin MSL 1, Lead Finish Sn/Cu Matte POCKET TAPE DIMENSIONS (mm) 2

CAD (KiCad official)

  • Symbol: ECS-147.4-18-5PLX-AGN-TR
  • Footprint: Crystal:Crystal_SMD_HC49-SD
  • 3D model: HC-49S-SMD (KiCad packages3D, STEP)
  • 3D model files: ecs-147-4-18-5plx-agn-tr-etched.step / ecs-147-4-18-5plx-agn-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ecs-147-4-18-5plx-agn-tr.step / ecs-147-4-18-5plx-agn-tr.glb are the bare package body.

Provenance

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

  • Datasheet: ECS datasheet (2 pp, sha256 ``, retrieved 2026-10-30, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary crystal numbering (convention), consensus off (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