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ECS-120-12-36-AGN-TR

ECS · Crystals · SMD2520-4P

ECS-120-12-36-AGN-TR from ECS, in a SMD2520-4P. 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 (In/Out); pads 1 and 3 are interchangeable since the crystal is symmetrical.
2 Gnd power_in Ground pad, connected to ground.
3 Out/In passive Crystal terminal (Out/In); pads 1 and 3 are interchangeable since the crystal is symmetrical.
4 Gnd power_in Ground pad, connected to ground.

Key specifications

Parameter Value
Manufacturer ECS
Package SMD2520-4P
Category Crystal Oscillator/Oscillator/Resonator
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 25 ppm @ +25°C, code A 1
Frequency Stability -30 30 ppm -40 ~ +85°C, code G/N 1
Operating Temperature Topr -40 85 °C Temp range code N 1
Storage Temperature Tstg -55 125 °C 1
Equivalent Series Resistance ESR 150 Ω 12.000 ~ 15.999 MHz 1
Drive Level DL 100 μW 1
Shunt Capacitance Co 5 pF 1
Aging (First Year) -5 5 ppm @ +25°C ±3°C 1
Peak Solder Temperature 260 °C 10 sec max, 2 cycles max 2
Frequency 12 MHz Fundamental mode; 120 = 12.000 MHz 1
Load Capacitance CL 12 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 gold MSL 1, Lead Finish Au POCKET TAPE DIMENSIONS (mm) 2

CAD (KiCad official)

  • Symbol: ECS-120-12-36-AGN-TR
  • Footprint: Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm
  • 3D model: SMD2520-4P (KiCad packages3D, STEP)
  • 3D model files: ecs-120-12-36-agn-tr-etched.step / ecs-120-12-36-agn-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ecs-120-12-36-agn-tr.step / ecs-120-12-36-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 dfda265f7b2eeae3, retrieved 2026-10-31, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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