14.31818M20PI/49US

Crystals Overview

The YIC 14.31818M20PI/49US is a fundamental mode quartz crystal resonator operating at a nominal frequency of 14.31818 MHz. It utilizes the HC-49/US package style with radial leads spaced at 4.88 mm. The component features a load capacitance of 20 pF and a maximum equivalent series resistance (ESR) of 50 Ohms. Frequency tolerance is specified at ±30 ppm, with an initial frequency stability of ±100 ppm over the temperature range of -40°C to +85°C. The device operates with a drive level of 1 mW.

Crystals Feature Summary

• Fundamental mode quartz resonator construction for stable timing
• HC-49/US through-hole package design for standard mounting
• Extended temperature operation capability across industrial ranges

Crystals Applications

• Industrial electronics timing circuits
• Telecommunications equipment clock generation
• Automotive system synchronization

Crystals Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with YIC or authorized distributors before procurement. Confirm that the HC-49/US package dimensions and lead spacing match the target PCB footprint requirements. Ensure the drive level specifications align with the oscillator circuit design to prevent frequency pulling or aging issues. Validate that the frequency tolerance meets the system timing accuracy requirements.

Crystals Selection Notes

Select this component when a fundamental mode crystal in the HC-49/US package is required for 14.31818 MHz applications. Consider the 20 pF load capacitance requirement for circuit compatibility. Evaluate the ±30 ppm tolerance against system jitter budgets. Compare the extended temperature range against environmental constraints. Verify ESR limits against oscillator loop gain requirements.

Crystals Part Context

This part belongs to YIC's line of quartz crystals and oscillators designed for industrial, telecommunications, and automotive sectors. The HC-49/US form factor is a widely adopted standard for through-hole mounting in legacy and robust designs. The 14.31818 MHz frequency is commonly used in video and data communication standards requiring precise clock division.

Crystals Replacement Considerations

ECS-143-20-4-DN offers similar electrical parameters but specifies a 40 Ohm ESR and different packaging details. CTS 405C35E14M31818 provides SMD mounting which requires layout changes. Cross-reference datasheets for exact mechanical and electrical compatibility before substitution.