Description
The HC-49SMD 7.3728 MHz is a high-reliability, surface-mount quartz crystal unit designed for precise frequency control in digital circuits. Operating at 7.3728 MHz, this frequency is a standard in the industry specifically chosen for its capability to be divided into exact, error-free baud rates (such as 9600, 19200, 38400, or 115200 bps) for UART serial communications, making it indispensable for microcontroller-based embedded systems.
Encased in the classic, resistance-welded HC-49SMD metal package, this crystal offers superior 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 dual-clock projects or small-batch manufacturing.
Features
- 7.3728 MHz nominal frequency (ideal for standard UART 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, ARM, etc.)
- Embedded Systems Development
- Digital Signal Processing (DSP)
- Communication Interface Hardware
- General Purpose Electronic Timing
Package Includes
- 2 x HC-49SMD 7.3728 MHz 20pF 20PPM 2-Pad SMD Quartz Crystal
Specifications
| Parameter | Specification |
|---|---|
| Part Number (Model) | HC-49SMD 7.3728MHZ |
| Frequency | 7.3728 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 |
