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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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✓ Non-Authorised
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Bristol Electronics ✓
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235 pcs
On Request
235 pcs On Request 1 On Request On Request On Request On Request On Request
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ECS-147.4-20-4 Specifications Quick View

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