Crystal 24.000MHz HC-49U
The HC49/U is a through-hole quartz crystal resonator housed in a standard HC-49/U package. This package is a classic, leaded metal casing that provides robustness and stability for the enclosed quartz crystal blank. The component is designed for wave soldering onto printed circuit boards and is not moisture sensitive, which simplifies storage and handling processes. Its construction involves resistance welding, ensuring a reliable and hermetic seal to protect the sensitive internal element from environmental factors.
This specific component is calibrated to a fundamental frequency of 24.000 MHz. Operating at its fundamental frequency means that the crystal’s oscillation is based on its primary, natural mechanical resonance. This is in contrast to overtone modes, which are higher harmonics of the fundamental frequency. The fundamental mode operation is typically chosen for frequencies up to approximately 24 MHz, making this crystal a standard choice for clock generation in many digital circuits within this frequency range.
The crystal’s primary function is to generate a highly precise and stable clock signal. Its performance is characterized by key parameters such as frequency tolerance and stability over a specified temperature range. For a 24.000 MHz crystal, it requires an external load capacitance to operate at its specified frequency, with a standard value of 18 pF. The crystal is designed to maintain its oscillation integrity within defined limits of drive level and equivalent series resistance, ensuring consistent performance in the target application.
Features:
- High precision availability.
- Resistance welded construction.
- Ideal for large pulpability applications.
- Wide frequency range availability.
- RoHS/RoHS II Compliant.
Specifications:
| Parameter | Specification | Unit |
|---|---|---|
| Frequency: | 24.000 | MHz |
| Operation Mode: | Fundamental | – |
| Frequency Tolerance @ +25°C: | ±50 (Standard, other options available) | ppm |
| Frequency Stability: | ±100 (Standard, other options available) | ppm |
| Load Capacitance (CL): | 18 (Standard, other options available) | pF |
| Equivalent Series Resistance (ESR): | 25 (Max) | Ω |
| Shunt Capacitance (C0): | 7 (Max) | pF |
| Drive Level: | 100 – 1000 | μW |
| Operating Temperature Range: | 0 to +70 (Standard, other options available) | °C |
Applications:
- CPU and Memory Clocking.
- Computers and Printers.
- Data Communication.
- Data Input-Output Machines.
Package Contents:
- 1x Crystal 24.000MHz 18pF 25Ω HC-49U
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