18QHTF21-65.015873-PD

Overview

The 18QHTF21-65.015873-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 65.015873 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and includes a power-down (standby) control function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• LVCMOS output interface
• Power-down standby capability
• Compact surface-mount form factor

Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded microcontroller timing

Procurement Notes

Verify the specific suffix 'PD' confirms the power-down feature against the manufacturer's official datasheet. Ensure the 1.8V supply requirement aligns with the target circuit design. Confirm the 4-SMD no-lead package footprint matches the PCB layout specifications to prevent assembly errors.

Selection Notes

Select this component when a precise 65.015873 MHz reference is required with low-voltage operation. The power-down feature supports battery-operated applications requiring extended standby life. Verify thermal performance within the specified operating temperature range for the intended environment.

Part Context

This part belongs to the 18QHTF21 series of standard XO oscillators from Mercury Electronics. The series offers various frequencies and supply voltages. The 'PD' suffix specifically denotes the inclusion of a power-down pin or control mechanism, distinguishing it from non-controlled variants in the same package family.

Replacement Considerations

Direct substitutes must match the 65.015873 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify that alternative sources provide identical power-down functionality and electrical characteristics to ensure system compatibility.