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The 18QHTF21-86.8875-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 86.8875 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby mode for power down functionality. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount applications.
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply rail is stable and within the operational limits specified in the official datasheet. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions to guarantee proper soldering and electrical connection.
Select this component when a fixed 86.8875 MHz reference is required with LVCMOS outputs. Consider the 1.8V operating voltage constraint and the need for a standby feature. Evaluate the thermal performance and size constraints of the 4-SMD package relative to the target application environment.
This part belongs to the Mercury Electronics XO series, which provides standard frequency oscillators. The manufacturer has a history of producing quartz-based frequency control products. This specific model represents a fixed-frequency solution rather than a programmable or tunable variant.
No public confirmed substitute part numbers are available in the provided documentation. Verify pinout and electrical specifications carefully if considering alternative vendors.