HC-49SMD 4.9152 MHz 20pF ±20ppm 2-Pad SMD Quartz Crystal (Pack of 2)

Description

The HC-49SMD 4.9152 MHz is a classic, robust quartz crystal designed for reliable timing in a surface-mount form factor. The 4.9152 MHz frequency is a “magic number” in the electronics industry, specifically chosen because it is an exact multiple of common serial communication baud rates (e.g., 4.9152 MHz / 512 = 9600 bps). This makes it an ideal timing reference for UART serial communication, microcontrollers, and digital signal processors, ensuring high-speed data transmission without timing-induced errors.

Packaged in the widely recognized HC-49SMD low-profile housing, this crystal is well-suited for applications where reliability and cost-effectiveness are prioritized. With a load capacitance of 20 pF and a tight frequency tolerance of ±20 ppm, it provides the stable, precise clock signal required for reliable operation in industrial controllers, communication interfaces, and embedded systems. This pack includes two units, perfect for prototyping or multi-board hardware designs.

Features

• 4.9152 MHz nominal frequency (Perfect for error-free UART baud rate generation)
• ±20 ppm frequency tolerance
• 20 pF load capacitance
• Industry-standard HC-49SMD surface-mount package
• High mechanical reliability and consistent performance
• Pack of 2 units included

Applications

• UART Serial Communication (RS-232, RS-485 interfaces)
• Microcontroller and DSP Clocking
• Embedded System Timing
• Industrial Automation and Control Hardware
• General-purpose digital signal synchronization

Package Includes

• 2 x HC-49SMD 4.9152 MHz 20pF 20PPM 2-Pad SMD Quartz Crystal

Specifications