18QHTF21-116.500-PD

Overview

The 18QHTF21-116.500-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 116.5 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down mode for standby functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby capability via power-down mode to reduce consumption
• Utilizes a leadless surface-mount package for space-constrained designs

Applications

• Digital signal processing systems requiring precise clocking
• Communication equipment utilizing high-frequency timing signals
• Embedded systems operating at 1.8V logic levels

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 2.0x1.6mm 4-SMD no-lead package specifications to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a specific 116.5 MHz frequency. Consider the small form factor for dense board layouts. Evaluate the need for power-down functionality if energy efficiency during idle states is a priority. Compare alternative frequencies within the same series if the exact 116.5 MHz is not strictly necessary.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd, which offers various standard XO options. The series typically provides LVCMOS outputs in compact SMD packages. Mercury Electronics has a history of manufacturing quartz crystals and frequency control products, positioning this model as a standard timing solution for modern electronic applications.

Replacement Considerations

Direct substitutes may include other 116.5 MHz LVCMOS oscillators in 4-SMD no-lead packages from different manufacturers, provided they support 1.8V operation. Verify pinout compatibility and electrical characteristics such as phase noise and jitter before substitution.