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Contents

README

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ECS-2520S25-250-FN-TR

ECS · Crystal Oscillators · SMD2520-4P

ECS-2520S25-250-FN-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 Tri-state input Tri-state enable: the output is active when pin 1 is High or left NC, and goes to high impedance when pin 1 is Low.
2 Gnd power_in Ground pad for the oscillator supply return.
3 Output output HCMOS clock output with 15 pF load; VOL is 10% Vdd max and VOH is 90% Vdd min, with 5 ns max rise and fall time (10%-90% Vdd).
4 Vdd power_in Supply pin; the datasheet specifies Vdd ±10% of +1.8, +2.5, +3.0 or +3.3 V DC depending on the part-number voltage code.

Key specifications

Parameter Value
Manufacturer ECS
Package SMD2520-4P
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
Frequency Range 3.2 55 MHz 1
Frequency Stability (FN) -10 10 ppm FN (-40 ~ +85°C); includes initial tolerance, temperature, supply voltage & load change, reflow frequency shift, aging (1 year @+25°C) 1
Power Supply Vdd tolerance Vdd -10 10 % Vdd ±10% 1
Operating Temp -40 85 °C 1
Storage Temp -55 125 °C 1
Duty Cycle 45 55 % @ ½ Vdd 1
Output voltage low VOL 10 %Vdd 10%Vdd max. 1
Output voltage high VOH 90 %Vdd 90%Vdd min. 1
Peak solder temperature 260 °C 10 sec max; 2 cycles max 2
Power Supply Vdd (2.5 V variant) Vdd 2.5 V DC Vdd ±10%; variant code 25 (+2.5V) 1
Rise & Fall time 5 ns 10%Vdd, 90%Vdd 1
Current Consumption 7 mA 1
Standby Current 10 µA 1
Output load 15 pF Output HCMOS 1
Startup Time 10 ms 1
Phase Noise -145 dBc/Hz @ 10 KHz offset 1
Nominal frequency (code 250) f0 25 MHz Part-number frequency code 250 = 25.000 MHz 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 FREQUENCY MHz CODE 2

CAD (KiCad official)

  • Symbol: ECS-2520S25-250-FN-TR
  • Footprint: Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm
  • 3D model: SMD2520-4P (KiCad packages3D, STEP)
  • 3D model files: ecs-2520s25-250-fn-tr-etched.step / ecs-2520s25-250-fn-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ecs-2520s25-250-fn-tr.step / ecs-2520s25-250-fn-tr.glb are the bare package body.

Provenance

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

  • Datasheet: ECS datasheet (2 pp, sha256 56d1dfee00e96193, 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