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Ray Publish 0.1.0 33c55ab 17d ago

ECS-240-12-33Q-JES-TR

ECS · Crystals · SMD3225-4P

ECS-240-12-33Q-JES-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 labeled In/Out; pads 1 and 3 are interchangeable because the crystal is symmetrical.
2 Gnd power_in Ground pad connection, as listed under Pad Connections.
3 Out/In passive Crystal terminal labeled Out/In; interchangeable with pad 1 because the crystal is symmetrical.
4 Gnd power_in Ground pad connection, as listed under Pad Connections.

Key specifications

Parameter Value
Manufacturer ECS
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
Nominal frequency (P/N code 240) f 24 MHz P/N code 240 = 24.000 MHz per developed frequencies table 2
Frequency Tolerance @ +25°C (P/N tolerance code J) -20 20 ppm @ +25°C; P/N tolerance code J = ±20 ppm 1
Frequency Stability (P/N stability code E) -50 50 ppm P/N stability code E = ±50 ppm 1
Aging (First Year) -5 5 ppm First year @ +25°C ±3°C 1
Shunt Capacitance Co 7 pF 1
Load Capacitance (specify in P/N) 6 20 pF Specify in P/N; MPN code 12 not listed in printed guide 1
Drive Level DL 100 μW 1
Equivalent Series Resistance ESR 40 Ω Frequency 24.000 ~ 40.000 MHz 1
Operating Temperature (P/N temperature code S) Topr -40 125 °C Temperature range code S = -40 ~ +125°C per P/N guide 1
Storage Temperature Tstg -55 125 °C 1
Peak solder temperature 260 °C Max 10 sec; 2 cycles max 2

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-240-12-33Q-JES-TR
  • Footprint: Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm
  • 3D model: SMD3225-4P (KiCad packages3D, STEP)
  • 3D model files: ecs-240-12-33q-jes-tr-etched.step / ecs-240-12-33q-jes-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ecs-240-12-33q-jes-tr.step / ecs-240-12-33q-jes-tr.glb are the bare package body.

Provenance

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

  • Datasheet: ECS datasheet (2 pp, sha256 c0df4dfd11badf1f, retrieved 2026-10-16, 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