18QHTF21-76.5505-PD

Overview

The 18QHTF21-76.5505-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 76.5505 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby power-down mode to reduce energy consumption during inactive periods. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes. This component serves as a precise clock source for digital circuits requiring stable timing signals.

Feature Summary

• LVCMOS output logic interface
• Standby power-down capability
• Compact 4-SMD no-lead package

Applications

• Digital circuit clock generation
• Embedded system timing references
• Communication equipment signal processing

Procurement Notes

Verify the exact part number suffix against official Mercury Electronics documentation to ensure correct voltage and frequency specifications. Confirm package compatibility with PCB footprint requirements. Request manufacturer datasheets for detailed electrical characteristics and reliability data before integration into final designs.

Selection Notes

Select this model when a 1.8V supply and 76.5505 MHz frequency are required. Ensure the LVCMOS output level matches the receiving input logic thresholds. Consider the 4-SMD package size for space-constrained layouts. Verify operating temperature range suitability for the intended environment.

Part Context

This oscillator belongs to the Mercury Electronics SMD oscillator series, which includes various frequencies and voltage options. The 18QHTF21 prefix indicates specific package and performance characteristics within their product line. Mercury Electronics has decades of experience in quartz crystal manufacturing, providing reliable frequency control solutions.

Replacement Considerations

Direct substitutes must match the 76.5505 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Check pinout compatibility if cross-referencing with other manufacturers. Verify that alternative components meet the same electrical and mechanical specifications for seamless replacement.