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ECX-2236B Tight Stability, Low Aging SMD Crystal


ECS Inc. International's ECX-2236B series of surface mount (SMD) crystals is available in an industry standard 2.5 mm x 2.0 mm x 0.55 mm 4-pad package. These electronic components offer a wide frequency range, tight stability of ±10 ppm and a low ±1 ppm first year aging @ 25ºC ±3ºC with the option of an extended temperature range. The standard ECX-2236B crystal offers ±10 ppm frequency tolerance and the standard range of crystal load capacitance. This component is ideal for IoT, wireless and wearable applications. 

November 2022 Update 

ECS announces an expansion to the ECX-2236B series of surface mount crystals. The expansion includes new, higher developed frequencies paired with previously existing load capacitance and temperature range options. In select ECX-2236B part numbers, customers can order the “TR3” part number indicating 3,000-piece reels rather than the standard 1,000-piece reels. 



  • 2.5 mm x 2.0 mm x 0.55 mm footprint 
  • Frequency range: 12 MHz ~ 60 MHz 
  • ±10 ppm standard frequency tolerance with ±7 ppm option available 
  • ±10 ppm standard stability  
  • Low aging ±1 ppm max. first year @ 25ºC ±3ºC 
  • Standard operating temperature: -30ºC ~ +85ºC  
  • Extended temperature range option available 
  • Low ESR 
  • RoHS 3 and REACH compliant 



  • IoT 
  • Industrial 
  • Wireless 
  • Mobile devices 
  • Wearables 
  • Wi-Fi 
  • Bluetooth 
Image Part Number Frequency Frequency
Datasheet Check
ECS-520-8-36B-CTN-TR 52 MHz


-40°C ~ +85°C Datasheet Inventory
ECS-540-8-36B-CTN-TR 54 MHz ±20ppm -40°C ~ +85°C Datasheet
ECS-600-8-36B-CTN-TR 60 MHz ±20ppm -40°C ~ +85°C Datasheet
ECS-500-4-36B-CTN-TR 50 MHz ±20ppm -40°C ~ +85°C Datasheet
ECS-250-10-36B-JTN-TR 25 MHz ±20ppm -40°C ~ +85°C Datasheet
ECS-384-10-36B-CWN-TR 38 MHz ±15ppm -40°C ~ +85°C Datasheet Inventory
ECS-600-8-37B-CTN-TR 60 MHz ±20ppm -40°C ~ +85°C Datasheet Inventory

Please contact us if you need additional information or have a specific requirement in your application.

ECS, Inc. International
15351 West 109th Street
Lenexa, KS 66219

Tel: 913-782-7787
Toll Free: 1-800-237-1041
Fax: 913-782-6991


About ECS

Founded in 1980, ECS Inc. International has grown to become one of the most recognized and experienced manufacturers of frequency control management products in the world.
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15351 West 109th Street, Lenexa, KS 66219
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