18QHTF21-37.721-PD

Oscillators Overview

The 18QHTF21-37.721-PD is a 37.721 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It utilizes LVCMOS output logic and operates at a supply voltage of 1.8V. The device features a Standby function for power management, allowing the unit to enter a Power Down state when inactive. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component is designed for applications requiring precise timing signals in low-power electronic systems.

Oscillators Feature Summary

• LVCMOS output logic for standard digital interface compatibility
• Integrated Standby mode enabling efficient power down control
• Compact 4-SMD No Lead surface mount package design

Oscillators Applications

• General purpose clock signal generation in embedded systems
• Timing reference for low-voltage digital circuits
• Portable electronic devices requiring power-efficient oscillators

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD No Lead footprint matches your PCB layout specifications. Check for any specific RoHS compliance documentation if required by your manufacturing standards.

Oscillators Selection Notes

Select this component when a 37.721 MHz frequency is strictly required for system synchronization. Consider the 1.8V operating voltage as a primary constraint for power budgeting. The LVCMOS output is suitable for standard CMOS logic families. Evaluate the need for the Standby feature to optimize overall system energy consumption during idle periods.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies within a standardized 2.0x1.6 mm package. These components are engineered for high reliability and stability in consumer and industrial electronics. The 'PD' suffix indicates the inclusion of a power-down capability.

Oscillators Replacement Considerations

Direct replacements must match the 37.721 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar low-profile oscillators with standby functions.