18QHTF21-65.0158-PD

Overview

The 18QHTF21-65.0158-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 65.0158 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to manage energy consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is suitable for applications requiring precise timing signals within low-voltage digital systems.

Feature Summary

• Supports LVCMOS output logic for direct interface with digital circuits
• Includes standby or power-down functionality for energy management
• Utilizes a leadless SMD package for surface-mount assembly

Applications

• Digital signal processing systems
• Communication equipment requiring precise clocking
• Embedded systems with low-voltage requirements

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific handling instructions related to the leadless package during assembly.

Selection Notes

Select this oscillator when a fixed 65.0158 MHz frequency is required with LVCMOS outputs. Consider the 1.8V operating voltage and the availability of a power-down feature for power-sensitive designs. Evaluate the 2.0x1.6mm package size against available board space. Compare performance metrics such as phase noise and stability if available in official documentation.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies in a small form factor. The series typically targets consumer electronics and portable devices due to its low voltage operation and compact size. Mercury Electronics has a history of manufacturing quartz crystals and frequency control products since 1973.

Replacement Considerations

Direct substitutes may include other 65.0158 MHz LVCMOS oscillators in a 4-SMD no-lead package with 1.8V operation. Verify pin compatibility and electrical specifications before substitution. Alternative parts from different manufacturers should be evaluated for mechanical fit and performance equivalence.