12M20P2/49US

Crystals Overview

The YIC 12M20P2/49US is a fundamental mode AT-cut quartz crystal resonator designed for general-purpose timing applications. It operates at a nominal frequency of 12 MHz with a load capacitance of 20 pF and an equivalent series resistance (ESR) of 50 Ohms. The component exhibits a frequency tolerance of ±30 ppm and functions within an operating temperature range of -20°C to +70°C. It utilizes the HC-49/US through-hole package, providing a standard form factor for PCB integration.

Crystals Feature Summary

• Fundamental mode AT-cut quartz construction ensures stable oscillation characteristics.
• Standard HC-49/US through-hole package facilitates easy mounting on printed circuit boards.
• Designed for general-purpose clock generation in digital logic circuits.

Crystals Applications

• Microcontroller clock sources
• Digital logic timing references
• General-purpose oscillator circuits

Crystals Procurement Notes

Verify that the specific part number suffix matches the required package style, as HC-49/US denotes a through-hole variant distinct from surface-mount options like SMT. Confirm that the load capacitance specification aligns with the host oscillator circuit design requirements. Ensure the operating temperature range meets the environmental conditions of the intended application. Cross-reference datasheet parameters against system specifications before finalizing procurement decisions.

Crystals Selection Notes

Select this component when a fundamental mode crystal with moderate stability is required for cost-sensitive designs. The 20 pF load capacitance is common for many microcontroller interfaces. Consider the ±30 ppm tolerance sufficient for basic timing needs where high precision is not critical. Evaluate the HC-49/US package dimensions against available PCB real estate. Compare ESR values with driver capability to ensure reliable startup.

Crystals Part Context

This part belongs to YIC's line of standard quartz crystal resonators. The model number indicates a 12 MHz frequency, 20 pF load capacitance, and HC-49/US packaging. It serves as a passive frequency-determining element in electronic circuits, replacing older or less precise timing components. The product family focuses on providing reliable, low-cost solutions for mass-produced consumer and industrial electronics requiring stable clock signals.

Crystals Replacement Considerations

Direct substitutes include other manufacturers' HC-49/US crystals with identical 12 MHz frequency, 20 pF load capacitance, and similar ESR ratings. Verify that alternative parts meet the same ±30 ppm tolerance and -20°C to +70°C temperature range. Surface-mount equivalents like the 12M20P2/49SMT offer functional parity but require different PCB footprints. Always confirm pin compatibility and mechanical dimensions before swapping components.