🔹 2pcs 8MHz HC-49S Crystal Oscillator – Through-Hole, 2-Pin
The HC-49S is a standard through-hole crystal oscillator that provides a precise 8MHz frequency reference for microcontrollers, CPUs, and clock generation circuits.
âś… Specifications:
Frequency: 8MHz
Package: HC-49S (HC-49/US, 2-pin through-hole)
Pin Count: 2
Load Capacitance: 18pF (typical, standard value)
Frequency Tolerance: ±30ppm (typical)
Frequency Stability: ±50ppm (typical)
Series Resistance (ESR): 60Ω max
Dimensions: ~11.35 x 5 x 3.5mm
📦 Features:
✔️ Reliable fundamental-mode oscillation
✔️ Standard HC-49S package for easy PCB mounting
✔️ RoHS compliant
✔️ Low equivalent series resistance (ESR) for stable startup
✔️ Wide operating temperature range
📦 Applications:
✔️ Microcontroller and CPU clock sources
✔️ Arduino/ESP32/STM32 external crystal
✔️ Real-time clock (RTC) circuits
✔️ Communication and RF modules
✔️ Timing and clock generation circuits
✔️ General-purpose oscillator circuits
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