Description
The HC-49SMD 3.6864 MHz is a high-reliability, low-profile quartz crystal unit designed for precise frequency control in digital electronics. Operating at 3.6864 MHz, this frequency is specifically chosen for its ability to generate standard baud rates for UART serial communication, making it an essential component for microcontrollers and embedded serial interface systems.
Encased in the industry-standard HC-49SMD package, this 2-pad surface-mount crystal offers excellent vibration resistance and long-term frequency stability. With a load capacitance of 20 pF and a frequency tolerance of ±20 ppm, it provides consistent performance for sensitive timing applications. This package includes two units, offering an ideal solution for prototyping or dual-board assembly projects.
Features
- 3.6864 MHz nominal frequency (optimized for standard baud rate generation)
- ±20 ppm high-precision frequency tolerance
- 20 pF load capacitance
- Robust HC-49SMD 2-pad surface-mount package
- Excellent reliability and thermal stability
- Pack of 2 units included for manufacturing convenience
Applications
- Serial Communication (UART) Timing References
- Microcontroller Clocking (AVR, PIC, etc.)
- Embedded Systems Development
- Digital Signal Processing (DSP)
- Communication Interface Hardware
- General Purpose Electronic Timing
Package Includes
- 2 x HC-49SMD 3.6864 MHz 20pF 20PPM 2-Pin SMD Quartz Crystal
Specifications
| Parameter | Specification |
|---|---|
| Part Number (Model) | HC-49SMD 3.6864MHZ |
| Frequency | 3.6864 MHz |
| Frequency Tolerance | ±20 ppm |
| Load Capacitance | 20 pF |
| Termination Type | SMD/SMT (2-Pad) |
| Quantity | Pack of 2 |
| Shipping Weight | 0.001 kg |
| Shipping Dimensions | 4 × 4 × 1 cm |





