4.194304M20PI/49US

Crystals Overview

The YIC 4.194304M20PI/49US is a through-hole quartz crystal unit designed for frequency control applications. It operates at a fundamental frequency of 4.194304 MHz with a load capacitance of 20 pF and a maximum series resistance of 150 Ohms. The component features a ±30 ppm initial frequency tolerance and an aging rate of ±5 ppm per year. It utilizes the HC-49/U package style, supports a maximum drive level of 1 mW, and functions within a temperature range of -20°C to +70°C.

Crystals Feature Summary

• Provides stable oscillation at 4.194304 MHz using fundamental mode quartz resonance
• Encapsulated in standard HC-49/U axial leaded housing for reliable mounting
• Maintains frequency stability with low aging characteristics over operational lifespan

Crystals Applications

• Microcontroller clock sources requiring precise timing references
• Communication equipment local oscillator stages
• Digital signal processing circuit synchronization

Crystals Procurement Notes

Verify the specific suffix PI/49US against your schematic requirements to ensure correct pin configuration and sealing method. Confirm that the 150 Ohm ESR matches your oscillator circuit design constraints. Check the operating temperature range limits against your environmental specifications before finalizing procurement orders.

Crystals Selection Notes

Select this component when a fundamental frequency near 4.2 MHz is required with moderate stability needs. Ensure the circuit can support the specified 1 mW drive level to prevent frequency pulling or damage. Verify that the 20 pF load capacitance aligns with the host oscillator's internal capacitive requirements for accurate frequency generation.

Crystals Part Context

This part belongs to YIC's standard HC-49/U crystal lineup, widely used in general-purpose electronics. It serves as a passive frequency-determining element essential for generating clock signals in digital systems. The model represents a common industry-standard frequency often utilized in data transmission and computing hardware.

Crystals Replacement Considerations

Substitutes must match the 4.194304 MHz frequency, 20 pF load capacitance, and HC-49/U package dimensions. Verify equivalent ESR and drive level specifications to maintain circuit performance. Cross-reference manufacturer datasheets for identical electrical parameters before implementation.