J49SMH-P-G-G-K-3M579545

Crystals Overview

The J49SMH-P-G-G-K-3M579545 is a surface-mount quartz crystal resonator manufactured by Jauch Quartz. It operates at a fundamental frequency of 3.579545 MHz with a frequency stability of ±30 ppm. The component features a load capacitance of 30 pF and an equivalent series resistance (ESR) of 120 Ohms. It utilizes the HC-49/US package form factor, measuring 0.461 inches in length and 0.189 inches in width. The device supports an operating temperature range from -40°C to +85°C.

Crystals Feature Summary

• Surface mount construction for automated assembly compatibility
• HC-49/US package form factor ensuring standardized footprint
• Fundamental mode operation at 3.579545 MHz

Crystals Applications

• Microcontroller clock sources
• Communication interface timing circuits
• General-purpose digital logic timing references

Crystals Procurement Notes

Verify the complete part number including suffixes against official Jauch Quartz documentation to ensure correct frequency, tolerance, and packaging specifications. Confirm that the HC-49/US surface mount variant matches the required PCB layout dimensions. Cross-reference the load capacitance and ESR values with the target circuit design requirements before finalizing procurement orders.

Crystals Selection Notes

Select this component when a precise 3.579545 MHz reference is required for surface-mounted designs. Ensure the application environment remains within the specified -40°C to +85°C operational range. Verify that the 30 pF load capacitance aligns with the oscillator circuit's input capacitance requirements to maintain the stated ±30 ppm stability.

Crystals Part Context

This component belongs to the Jauch Quartz J49SMH series of surface-mount crystals. The series provides alternatives to traditional through-hole HC-49/U packages while maintaining similar electrical characteristics. It serves as a passive timing element within larger electronic systems requiring stable frequency generation.

Crystals Replacement Considerations

Direct substitutes must match the 3.579545 MHz frequency, 30 pF load capacitance, 120 Ohm ESR, and HC-49/US SMD package. Verify manufacturer-specific pinout and mounting pad layouts to ensure mechanical compatibility during replacement.