18QHTF21-6.176-PD

Overview

The 18QHTF21-6.176-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 6.176 MHz and utilizes LVCMOS output logic. The device is designed for low voltage applications, featuring a supply voltage of 1.8V. It includes a standby or power-down function to manage energy consumption during inactive periods. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated standby mode for power management
• Compact 4-SMD no-lead surface mount package

Applications

• General purpose clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Procurement Notes

Verify the specific suffix 'PD' confirms the presence of the power-down functionality as documented. Ensure the operating voltage requirement of 1.8V aligns with the target system design. Confirm the 4-SMD no-lead package dimensions match the PCB footprint requirements. Check RoHS compliance status if environmental regulations apply to the final product assembly.

Selection Notes

Select this component when a 6.176 MHz clock source is required with low voltage operation. The LVCMOS output is suitable for standard digital logic families. Consider the standby feature if power efficiency is a priority. The small form factor supports high-density board layouts. Verify temperature range specifications against the intended operational environment.

Part Context

This part belongs to the QHTF series of crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The 18QHTF21 variant specifically denotes the 1.8V supply and 4-SMD package type. Mercury Electronics specializes in quartz crystals and timing components.

Replacement Considerations

Cross-reference other 6.176 MHz XO parts with LVCMOS outputs and 1.8V supply. Verify package compatibility for 4-SMD no-lead footprints. Ensure equivalent electrical characteristics are met before substitution.