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Contents

README

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ECS-TXO-2520-33-240-AN-TR

ECS · Temperature Compensated Crystal Oscillators (TCXO) · SMD2520-4P

ECS-TXO-2520-33-240-AN-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 control: output is active when this pin is high or not connected, and low disables the output to Hi-Z.
2 Gnd power_in Ground connection for the TCXO.
3 Output output HCMOS clock output with VOL max 10% Vdd and VOH min 90% Vdd, specified for a 15 pF load with 5 ns rise and fall time.
4 Vdd power_in Supply voltage, specified in the part number as +2.5 V, +2.8 V or +3.3 V, each ±10%.

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 Tolerance at +25°C -2 2 ppm Tolerance at +25°C 1
Frequency Stability vs. Temperature -2.5 2.5 ppm Vs. Temp (-40 ~ +85°C); suffix A = ±2.5 ppm 1
Frequency Change vs. Voltage -0.2 0.2 ppm Voltage Change Vdd ±5% 1
Frequency Change vs. Load -0.2 0.2 ppm Load Change (±10%) 1
Frequency Aging -1 1 ppm Per year @ +25°C 1
Supply Voltage Tolerance Vdd -10 10 % Supply voltage ±10% (for P/N code 33 = +3.3V) 1
Duty Cycle 45 55 % @ ½ Vdd 1
Current Consumption (+3.3V, 20.1~30 MHz band) 5.5 mA +3.3V; frequency band 20.1~30 MHz (24 MHz falls in this band) 1
Output Low Voltage Level VOL 10 %Vdd 10%Vdd max. 1
Output High Voltage Level VOH 90 %Vdd 90%Vdd min. 1
Operating Temperature Range -40 85 °C Part code N = -40 ~ +85°C 1
Peak Solder Temperature 260 °C Peak solder temp; 10 sec max; 2 cycles max 2
Nominal Frequency 24 MHz Part code 240 = 24.000 MHz 2
Supply Voltage Vdd 3.3 V DC Part code 33 = +3.3V 1
Standby Current 10 µA 1
Rise & Fall Time 5 ns 10%Vdd, 90%Vdd 1
Phase Noise -145 dBc/Hz @ 10 KHz offset 1
Output Load Capacitance 15 pF Output HCMOS 1

CAD (KiCad official)

  • Symbol: ECS-TXO-2520-33-240-AN-TR
  • Footprint: Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm
  • 3D model: SMD2520-4P (KiCad packages3D, STEP)
  • 3D model files: ecs-txo-2520-33-240-an-tr-etched.step / ecs-txo-2520-33-240-an-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ecs-txo-2520-33-240-an-tr.step / ecs-txo-2520-33-240-an-tr.glb are the bare package body.

Provenance

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

  • Datasheet: ECS datasheet (2 pp, sha256 ff95b59ff8d90046, retrieved 2026-10-14, 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