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ECS-147.4-20-4 14.7456 MHz quartz crystal in HC-49US through-hole package. Features ±30 ppm frequency tolerance, ±50 ppm stability, and 20 pF load capacitance.
Mfr Part #:

ECS-147.4-20-4

Available from 1 distributors
Mfr Name: ECS Inc.
ECS Inc.
14.7456 MHz quartz crystal in HC-49US through-hole package. Features ±30 ppm frequency tolerance, ±50 ppm stability, and 20 pF load capacitance.
Total Stock: 235 pcs

ECS-147.4-20-4 Available from 1 distributor

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ECS-147.4-20-4 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-147.4-20-4 Description

Short technical summary and product information.

The ECS-147.4-20-4 is a 14.7456 MHz quartz crystal from ECS Inc., housed in a low-profile HC-49US through-hole package. It operates in fundamental mode with a maximum equivalent series resistance (ESR) of 40 Ω. The crystal offers a frequency tolerance of ±30 ppm at 25°C and a frequency stability of ±50 ppm over the standard operating temperature range of -10°C to +70°C.

 

Designed for reliable performance, this crystal features a load capacitance of 20 pF and a typical shunt capacitance of 7.0 pF. It supports a drive level of 0.5 mW and exhibits excellent aging characteristics of ±5.0 ppm in the first year. The storage temperature range extends from -40°C to +105°C.

 

The HC-49US package measures 11.35 mm x 4.65 mm with a seated height of 3.50 mm, making it suitable for space-constrained applications. The resistance weld construction ensures long-term reliability. This crystal is RoHS3 compliant and REACH unaffected.

 

Typical applications include microprocessors, communication equipment, and general timing circuits requiring a stable 14.7456 MHz reference. The through-hole mounting allows for easy integration into PCB designs.

ECS-147.4-20-4 Quick Information

Product Type: MHz Crystal
Canonical Name: ECS Inc. HC-49US Quartz Crystal, 14.7456 MHz, 20pF Load Capacitance, Through Hole
Subcategory: HC-49US Quartz Crystal

ECS-147.4-20-4 Compliance

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

ECS-147.4-20-4 Features

  • 14.7456 MHz fundamental mode crystal.
  • ±30 ppm frequency tolerance at 25°C.
  • ±50 ppm stability over -10°C to +70°C.
  • 20 pF load capacitance, HC-49US package.
  • Low ESR of 40 Ω maximum.

ECS-147.4-20-4 Applications

  • Used in microprocessor clock generation circuits.
  • Ideal for communication equipment timing references.
  • Suitable for general purpose timing applications.
  • Common in embedded system oscillator designs.

ECS-147.4-20-4 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the frequency of the ECS-147.4-20-4?

14.7456 MHz.

What is the frequency tolerance?

±30 ppm at 25°C.

What is the frequency stability?

±50 ppm over -10°C to +70°C.

What is the load capacitance?

20 pF.

What is the operating temperature range?

-10°C to +70°C.

What is the package type?

HC-49US through-hole.

Is the crystal RoHS compliant?

Yes, RoHS3 compliant.

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