18QHTF21-86.9175-PD

Overview

The 18QHTF21-86.9175-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 86.9175 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down 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

• Supports low-voltage operation at 1.8V
• Integrates standby mode for power reduction
• Provides LVCMOS signal output compatibility

Applications

• General timing clock generation
• Digital signal processing systems
• Communication equipment interfaces

Procurement Notes

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 specified operating range to ensure reliable oscillator performance. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions for proper soldering and mechanical stability.

Selection Notes

Select this component when a precise 86.9175 MHz reference is required in space-constrained designs. The choice is driven by the need for low-power consumption via the standby feature and compatibility with 1.8V logic families. Consider the small form factor as a primary advantage for high-density board layouts.

Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series is characterized by its small footprint and support for various supply voltages. The 'PD' suffix typically indicates the inclusion of a power-down control pin, distinguishing it from continuously running variants.

Replacement Considerations

Direct substitutes must match the 86.9175 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify pinout compatibility, particularly the power-down control pin assignment, to ensure seamless integration without schematic changes.