Product: 10 × 8.000MHz quartz crystal resonators, model HC49S What this is - Ten HC49S quartz crystal resonators, each specified at 8.000MHz. - Passive oscillator component that provides a stable frequency reference for timing and clock circuits. Key benefits - Stable frequency: Precisely specified 8.000MHz output for reliable timing and synchronization. - Ready-to-use quantity: Pack of 10 makes prototyping, repairs, or small production runs convenient and cost-effective. - Standard package: HC49S form factor ensures compatibility with common PCB layouts and through-hole mounting practices. - Simple integration: Passive device requiring a minimal external circuit (typical crystal oscillator networks) to generate a stable clock. Important attributes - Function: Passive quartz crystal resonator used as the frequency-determining element in oscillator circuits. - Model: HC49S. - Frequency: 8.000MHz (8 MHz). - Quantity: 10 pieces. - Material: Quartz crystal resonator element. - Performance: Designed to produce a stable oscillation signal at 8.000MHz when used in the appropriate oscillator circuit. Compatibility and use - Suitable as a clock source or frequency reference in microcontroller and microprocessor circuits. - Compatible with standard crystal oscillator circuits, timing modules, communication devices, and other electronic designs that require an 8MHz reference. - HC49S package fits standard through-hole PCB footprints and can serve as a direct replacement for other HC49S 8MHz crystals. Practical application examples - Microcontroller clock: Provide the system clock for 8-bit or 32-bit microcontrollers where an 8MHz crystal is required. - Communication and RF circuits: Serve as a reference oscillator for transmitters, receivers, and baud-rate generators. - Timing and measurement: Use in timer circuits, RTC support, and other electronics that need a stable 8MHz reference. Notes - These are passive crystal resonators; proper oscillator circuit design (including load capacitors and an appropriate amplifier stage) is required for full operation. - Model and frequency are as listed: HC49S, 8.000MHz.