HC-49US 7.3728 MHz Crystal Oscillator | 20pF | 20PPM | DIP Through-Hole

Description

The HC-49US 7.3728 MHz Crystal is a high-precision quartz resonator, specifically engineered for applications requiring reliable serial data communication. The 7.3728 MHz frequency is a classic choice in embedded systems because it is a multiple of standard baud rates (such as 9600, 19200, 38400, and 115200), allowing microcontrollers to generate these rates with near-zero percentage error.

Housed in the industry-standard HC-49US 2-pin through-hole package, this crystal provides superior durability and ease of installation for both prototyping and production PCB designs. Its resistance-welded, hermetically sealed construction shields the internal quartz element from environmental stressors like moisture and oxidation. With a tight frequency tolerance of 20 PPM and a standard load capacitance of 20 pF, it delivers the consistent, low-jitter clock signal necessary for robust digital and communication hardware.

Key Features

• Perfect for UART Comms: The 7.3728 MHz frequency allows for precise generation of standard serial baud rates with minimal error.
• High Accuracy: A tight frequency tolerance of 20 PPM ensures stable operation in time-sensitive digital environments.
• Standardized Footprint: The classic 2-pin HC-49US design is universally compatible with standard crystal oscillator circuits.
• Robust Build: Hermetically sealed packaging ensures long-term operational reliability by resisting environmental interference.
• Optimal Load: Standard 20 pF load capacitance makes it easy to integrate into most microcontroller and DSP oscillator stages.

Application

• UART/Serial Communication Interfaces
• Microcontroller System Clocking
• Digital Signal Processing (DSP)
• Industrial Data Acquisition and Control
• Communication Hardware and Modems

Package Includes

• 2 x HC-49US 7.3728 MHz Crystal (Through-Hole Package)

Specifications