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ECS-250-18-4X-CKM ECS-250-18-4X-CKM is a 25 MHz through-hole quartz crystal from ECS Inc. It features 18pF load capacitance, ±10ppm frequency tolerance, and a low-profile HC-49/US package.
Mfr Part #:

ECS-250-18-4X-CKM

Available from 1 distributors
Mfr Name: ECS Inc.
ECS Inc.
ECS-250-18-4X-CKM is a 25 MHz through-hole quartz crystal from ECS Inc. It features 18pF load capacitance, ±10ppm frequency tolerance, and a low-profile HC-49/US package.
Total Stock: 7 pcs

ECS-250-18-4X-CKM Available from 1 distributor

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ECS-250-18-4X-CKM Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Aging (First Year)
Drive Level
ESR (Equivalent Series Resistance)
Frequency
Frequency Stability
Frequency Tolerance
Height
Length
Load Capacitance
Mounting Type
Operating Mode
Operating Temperature
Package / Case
Shunt Capacitance
Storage Temperature
Type
Width

ECS-250-18-4X-CKM Description

Short technical summary and product information.

The ECS-250-18-4X-CKM is a 25.0000 MHz fundamental mode quartz crystal from ECS Inc. It is designed for through-hole mounting in the HC-49/US package, offering a low profile of 3.50 mm height. The crystal has a load capacitance of 18 pF and a maximum ESR of 30 Ω. Frequency tolerance is ±10 ppm at 25°C, with stability of ±10 ppm over the operating temperature range of -20°C to +70°C. The device is RoHS3 compliant and MSL 1, suitable for lead-free soldering processes. Typical applications include clock generation in microcontrollers, communication circuits, and consumer electronics.

ECS-250-18-4X-CKM Quick Information

Product Type: Crystal
Series: HC-49USX
Canonical Name: ECS-250-18-4X-CKM 25 MHz ±10ppm Crystal, HC-49/US, 18pF
Subcategory: Through Hole Crystals

ECS-250-18-4X-CKM Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb Free

ECS-250-18-4X-CKM Features

  • 25 MHz fundamental mode quartz crystal.
  • 18 pF load capacitance for precise tuning.
  • ±10 ppm frequency tolerance and stability.
  • Low ESR of 30 Ω maximum.
  • Through-hole HC-49/US low-profile package.

ECS-250-18-4X-CKM Applications

  • Used in microcontroller clock circuits.
  • Ideal for communication timing modules.
  • Suitable for consumer electronics applications.
  • Provides stable clock for data acquisition systems.

ECS-250-18-4X-CKM FAQs

7 frequently asked questions generated from this part’s specifications.
What is the package type of the ECS-250-18-4X-CKM?

The crystal comes in a through-hole HC-49/US package.

What is the operating temperature range?

-20°C to +70°C.

Is the ECS-250-18-4X-CKM RoHS compliant?

Yes, it is RoHS3 compliant.

What is the frequency of this crystal?

25 MHz.

What is the load capacitance?

18 pF.

What is the equivalent series resistance (ESR)?

30 Ω maximum.

What is the frequency tolerance?

±10 ppm.

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