18QHTF21-68.100-PD

Overview

The 18QHTF21-68.100-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 68.1 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby (power down) function for energy management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications.

Feature Summary

• Supports standby mode for power reduction
• Utilizes LVCMOS output interface
• Compact 4-SMD no lead package design

Applications

• Battery-powered portable devices
• General clock signal generation
• Embedded system timing references

Procurement Notes

Verify the exact part number suffix against official manufacturer documentation to ensure correct voltage and frequency specifications. Confirm package type compatibility with PCB footprint requirements before procurement. Cross-reference datasheet electrical characteristics with system design constraints to validate performance under operating conditions.

Selection Notes

Select this component when a 1.8V supply voltage is required for low-power applications. Ensure the LVCMOS output logic level matches the receiving circuit input thresholds. Verify that the 68.1 MHz frequency aligns with system timing requirements. Consider the 4-SMD package dimensions for layout constraints.

Part Context

This model belongs to the QHTF series of crystal oscillators from Mercury Electronics. The series typically offers various frequencies and supply voltages. The '18' prefix indicates the 1.8V supply variant, while 'PD' denotes the specific package or tape/reel configuration as defined by the manufacturer's ordering nomenclature.

Replacement Considerations

Consult official substitution lists for compatible alternatives. Verify pinout, voltage, and frequency match before replacing.