18QHTF21-71.117-PD

Overview

The 18QHTF21-71.117-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 71.117 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby mode for power down capabilities. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby functionality to reduce power consumption during idle periods
• Utilizes a leadless SMD package for automated surface-mount assembly

Applications

• Digital signal processing clock generation
• Communication equipment timing synchronization
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions provided in the official datasheet to prevent soldering issues.

Selection Notes

Select this component when a stable 71.117 MHz reference is required for LVCMOS-compatible circuits. Consider the 1.8V operating voltage constraint and the need for low-power standby modes. Evaluate the thermal performance and size constraints of the 4-SMD package relative to the available board space.

Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency oscillators. The model number indicates the specific frequency and package type within the manufacturer's lineup of crystal-based timing solutions designed for consumer and industrial electronics.

Replacement Considerations

Direct substitutes must match the 71.117 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package. Verify pinout compatibility and electrical specifications with alternative manufacturers before integration.