18.432M18P2/49SMT

Crystals Overview

The YIC 18.432M18P2/49SMT is a surface-mount piezoelectric crystal oscillator designed for precision timing applications. It operates at a fundamental frequency of 18.432 MHz with a load capacitance of 18 pF. The component features a tolerance of ±30 ppm and an equivalent series resistance (ESR) of 20 Ohms. It utilizes the HC-49/US package format, ensuring compatibility with standard SMD/SMT assembly processes. The device provides stable frequency generation for digital circuits requiring accurate clock signals.

Crystals Feature Summary

• Provides precise frequency stability within specified tolerance limits
• Utilizes standard HC-49/US surface-mount packaging for automated assembly
• Designed for low equivalent series resistance to minimize power loss

Crystals Applications

• Microcontroller clock sources
• Communication interface timing
• Digital signal processing systems

Crystals Procurement Notes

Verify the specific manufacturer datasheet for detailed electrical characteristics and reliability data before integration. Confirm that the HC-49/US package dimensions align with the target PCB footprint. Ensure the operating temperature range meets the environmental requirements of the final application. Cross-reference the part number with official distributor catalogs to confirm current availability and lead times.

Crystals Selection Notes

Select this component when a 18.432 MHz frequency is required for system synchronization. The 18 pF load capacitance must match the oscillator circuit design specifications. Consider the ±30 ppm tolerance for applications with moderate frequency accuracy requirements. The 20 Ohm ESR value should be compatible with the driving circuit's impedance matching needs.

Crystals Part Context

This crystal belongs to the general category of passive timing devices manufactured by YIC. It serves as a fundamental frequency reference in electronic systems. The HC-49/US form factor is widely adopted in consumer electronics and industrial equipment. It represents a standard solution for cost-effective frequency control in mass-produced devices.

Crystals Replacement Considerations

Direct substitutes include other manufacturers' 18.432 MHz crystals with identical 18 pF load capacitance and HC-49/US packages. Verify pin compatibility and mounting orientation when replacing. Ensure alternative parts meet or exceed the original ±30 ppm tolerance specification.