CAPAR 18.4320MHz Quartz Crystal Resonator HC-49/U UART Clock Oscillator The CAPAR 18.4320MHz Quartz Crystal Resonator is engineered to deliver precise and stable frequency control, making it an ideal component for UART clock oscillators and other timing applications. Housed in the industry-standard HC-49/U package, this resonator ensures compatibility with a wide range of electronic circuits. Key Features Nominal Frequency: 18.4320 MHz Package Type: HC-49/U Load Capacitance: 18 pF Frequency Tolerance: ±30 ppm at 25°C Frequency Stability: ±50 ppm over -20°C to +70°C Operating Temperature Range: -20°C to +70°C Storage Temperature Range: -55°C to +125°C Equivalent Series Resistance (ESR): 40 ? Drive Level: 100 µW typical, 1 mW maximum Shunt Capacitance: 7 pF maximum Applications This quartz crystal resonator is particularly suited for: UART clock generation, facilitating accurate baud rate division for serial communication. Microprocessor and microcontroller timing, ensuring synchronized operations. General-purpose oscillator circuits requiring a stable 18.4320 MHz reference frequency. Mechanical Specifications Dimensions: 11.5 mm (L) x 4.5 mm (W) x 3.5 mm (H) Mounting Style: Through-hole Termination Style: Radial leads The CAPAR 18.4320MHz Quartz Crystal Resonator combines high precision with reliability, making it a valuable component for designers and engineers seeking consistent performance in their electronic designs.