049ST2-7.500F18DTLJK

Crystals Overview

The 049ST2-7.500F18DTLJK is a quartz crystal resonator manufactured by Suzhou Hangjing Elec & Tech Co., Ltd. It operates at a fundamental frequency of 7.5 MHz with a load capacitance of 18 pF and a frequency tolerance of ±20 ppm. The component utilizes an HC-49S package configuration with two pins. Its equivalent series resistance is specified at 30 Ohms, ensuring stable oscillation characteristics for timing applications.

Crystals Feature Summary

• Provides precise frequency control using quartz resonance technology
• Designed for surface-mount or through-hole integration via standard pin configuration
• Ensures reliable signal generation within specified temperature ranges

Crystals Applications

• Microcontroller clock circuits
• Communication module timing references
• Consumer electronic device oscillators

Crystals Procurement Notes

Verify the exact datasheet specifications directly from the manufacturer before integration. Confirm that the HC-49S package dimensions and pinout match your PCB layout requirements. Ensure the operating temperature range aligns with your system's environmental conditions to maintain the stated ±20 ppm stability.

Crystals Selection Notes

Select this component when a 7.5 MHz fundamental frequency is required for synchronous digital systems. The 18 pF load capacitance must match the oscillator circuit design. Consider the 30 Ohm ESR for drive level constraints. This part suits applications needing moderate stability without active temperature compensation.

Crystals Part Context

This resonator belongs to the HC-49S family of quartz crystals produced by Suzhou Hangjing. These components are widely used in general-purpose timing applications. The manufacturer specializes in quartz frequency control units, offering various frequencies and package types for industrial and consumer electronics markets.

Crystals Replacement Considerations

Cross-reference with other HC-49S 7.5 MHz crystals having 18 pF load capacitance and similar ESR values. Verify pin compatibility and mechanical footprint equivalence. Ensure alternative parts meet the same ±20 ppm tolerance requirement for system synchronization.