18QHTF21-59.4976-PD

Overview

The 18QHTF21-59.4976-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 59.4976 MHz with LVCMOS output logic. The device supports a supply voltage of 1.8V and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Surface-mount 4-SMD no lead package configuration

Applications

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

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Check RoHS compliance status if required by your manufacturing standards. Validate the operating temperature range suitability for your intended environment.

Selection Notes

Select this component when a stable 59.4976 MHz clock source is required with low power consumption capabilities. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the small form factor for space-constrained designs. Evaluate the standby feature benefits for battery-operated or power-sensitive applications compared to continuous operation oscillators.

Part Context

This part belongs to the QHTF series of quartz crystal oscillators from Mercury Electronics. The series typically offers various frequencies and packages. The 'PD' suffix likely indicates the power-down capability. Mercury Electronics specializes in frequency control products, providing solutions for telecommunications and consumer electronics markets.

Replacement Considerations

Direct substitutes must match the 59.4976 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar surface-mount oscillators with identical electrical parameters and mechanical dimensions.