HCM4919660800AGET

Crystals Overview

The HCM4919660800AGET is a surface-mount AT-cut crystal oscillator manufactured by Citizen FineDevice. It operates at a fundamental frequency of 19.6608 MHz with a load capacitance of 12 pF. The component features a tolerance of ±30 ppm and frequency stability of ±50 ppm. It utilizes an HC-49/US package with SMD/SMT termination, measuring 11.4 mm in length, 4.7 mm in width, and 4.3 mm in height. The equivalent series resistance is 50 Ohms, and the drive level is specified at 100 uW.

Crystals Feature Summary

• AT-cut quartz crystal construction for stable oscillation
• Surface mount design compatible with automated assembly
• HC-49/US form factor for standardized footprint integration

Crystals Applications

• Digital clock circuits requiring precise timing references
• Microcontroller system clock generation
• Communication interface baud rate synchronization

Crystals Procurement Notes

Verify the specific suffix AGET against official Citizen FineDevice documentation to confirm the 12 pF load capacitance specification. Ensure that the ordering code matches the required tolerance and stability ratings for the target application environment. Cross-reference the datasheet for any updates regarding RoHS compliance status or manufacturing location changes before finalizing procurement orders.

Crystals Selection Notes

Select this component when a 19.6608 MHz frequency is required for digital logic timing. The 12 pF load capacitance must match the circuit design requirements. Consider the ±30 ppm tolerance for applications needing tighter frequency accuracy than standard ±50 ppm parts. Verify that the operating temperature range aligns with the system's environmental conditions.

Crystals Part Context

This part belongs to the HCM49 series of surface-mount crystals from Citizen FineDevice. It shares the physical dimensions and mounting style with other variants in the family but differs in electrical parameters such as frequency, load capacitance, and tolerance. The series provides a compact solution for replacing through-hole HC-49/U crystals in modern PCB designs.

Crystals Replacement Considerations

Direct substitutes include HCM4919660800ABJT and HCM4919660800AGIT, which share the same frequency and package but may differ in load capacitance or tolerance specifications. Verify electrical compatibility before substitution.