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ECS-40-20-5PXDN-TR

Public Made by Adom

by adom

ECS Pre-ordered Products, HC-49S-SMD. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ECS-40-20-5PXDN-TR

ECS · Pre-ordered Products · HC-49S-SMD

ECS-40-20-5PXDN-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 XTAL1 passive Crystal terminal 1, interchangeable with pin 2 because the crystal is symmetrical; connects to the oscillator circuit with a specified load capacitance of 10 to 20 pF or series.
2 XTAL2 passive Crystal terminal 2, interchangeable with pin 1 because the crystal is symmetrical; connects to the oscillator circuit with a drive level of 500 μW max.

Key specifications

Parameter Value
Manufacturer ECS
Package HC-49S-SMD
Category Electronic Tools/Instruments/Consumables
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 -30 30 ppm @ +25°C 1
Frequency Stability -100 100 ppm -40 ~ +85°C 1
Aging (First Year) -5 5 ppm @ +25°C±3°C 1
Drive Level DL 500 μW 1
Equivalent Series Resistance ESR 150 Ω 3.57 ~ 4.999 MHz, Fundamental 1
Operating Temperature Topr -40 85 °C 1
Storage Temperature Tstg -55 125 °C 1
Peak Solder Temperature 260 °C 10 sec Max., 2 cycles max 2
Nominal Frequency 4 MHz Frequency code 40 in P/N 1
Shunt Capacitance Co 7 pF 1
Load Capacitance 20 pF Specify in P/N 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-40-20-5PXDN-TR
  • Footprint: Crystal:Crystal_SMD_HC49-SD
  • 3D model: HC-49S-SMD (KiCad packages3D, STEP)
  • 3D model files: ecs-40-20-5pxdn-tr-etched.step / ecs-40-20-5pxdn-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ecs-40-20-5pxdn-tr.step / ecs-40-20-5pxdn-tr.glb are the bare package body.

Provenance

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

  • Datasheet: ECS datasheet (2 pp, sha256 3a07424ab0ad65db, retrieved 2026-10-31, 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