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ECS-270-20-33-TR

ECS · Pre-ordered Products · SMD3225-4P

ECS-270-20-33-TR from ECS, 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 In/Out passive Crystal terminal; the datasheet states the crystal is symmetrical and pads 1 and 3 are interchangeable.
2 Gnd power_in Ground pad as listed under Pad Connections for the ECX-32 crystal.
3 Out/In passive Crystal terminal; the datasheet states it is interchangeable with pad 1 and has no electrical significance.
4 Gnd power_in Ground pad as listed under Pad Connections; the bottom chamfer may be on pad 4 or pad 1 and has no electrical significance.

Key specifications

Parameter Value
Manufacturer ECS
Package SMD3225-4P
Category Electronic Tools/Instruments/Consumables
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 @ +25°C -50 50 ppm @ +25°C 1
Frequency Stability -50 50 ppm -20 ~ +70°C 1
Aging (First Year) -5 5 ppm First year @ +25°C ±3°C 1
Shunt Capacitance Co 5 pF 1
Drive Level DL 100 μW 1
Operating Temperature Topr -20 70 °C 1
Storage Temperature Tstg -55 125 °C 1
Equivalent Series Resistance (ESR) ESR 40 Ω Frequency 24.000 ~ 54.000 MHz (27 MHz band), Max. 1
Frequency 27 MHz Nominal, P/N frequency code 270 2
Load Capacitance 20 pF Specified in P/N (20 pF in ECS-270-20-33-TR) 1
Peak Solder Temperature 260 °C 10 sec max, 2 cycles max 2
Frequency Range 8 54 MHz Family range of ECX-32 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 gold MSL 1, Lead Finish Au POCKET TAPE DIMENSIONS (mm) 2

CAD (KiCad official)

  • Symbol: ECS-270-20-33-TR
  • Footprint: Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm
  • 3D model: SMD3225-4P (KiCad packages3D, STEP)
  • 3D model files: ecs-270-20-33-tr-etched.step / ecs-270-20-33-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ecs-270-20-33-tr.step / ecs-270-20-33-tr.glb are the bare package body.

Provenance

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

  • Datasheet: ECS datasheet (2 pp, sha256 7f56a768dd3d4594, retrieved 2026-10-30, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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