18QHTF21-71.1708333-PD

Overview

The 18QHTF21-71.1708333-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 71.1708333 MHz and utilizes LVCMOS output logic. The device is designed for low-power applications with a supply voltage of 1.8V and includes a standby or power-down function. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Operates at a precise frequency of 71.1708333 MHz
• Features LVCMOS output logic for digital interfacing
• Supports standby mode for power management
• Designed for low-power consumption applications

Applications

• Low-power electronic systems requiring precise timing
• Digital circuits utilizing LVCMOS interfaces
• Portable devices where space and power are constrained

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure 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 to avoid assembly issues. Check for any specific handling instructions regarding ESD sensitivity typical for surface-mount oscillators.

Selection Notes

Select this component when a stable 71.1708333 MHz clock signal is required with minimal power usage. The LVCMOS output is suitable for direct connection to most digital logic families operating at 1.8V. Consider the small 2.0x1.6mm package size if board space is limited. The standby feature allows for energy savings in battery-operated devices when the clock is not actively needed.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal frequency control products. Mercury has been a pioneer in the Taiwan quartz industry since 1973. This series typically offers standard XO configurations with various frequencies and supply voltages, catering to diverse consumer and industrial electronics needs.

Replacement Considerations

Direct substitutes must match the 71.1708333 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pin compatibility and electrical characteristics such as phase noise and jitter if specified in the original design. Cross-reference with other manufacturers offering similar low-profile oscillators.