18QHTF21-10.700-PD

Overview

The 18QHTF21-10.700-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, designed for precise clock signal generation in electronic circuits. It operates at a fixed frequency of 10.7 MHz and utilizes LVCMOS output logic to ensure compatibility with various digital systems. The device functions on a single 1.8V supply voltage and features a power-down mode for standby applications, reducing energy consumption when not in active use. Physically, it is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm, making it suitable for space-constrained designs. This component integrates quartz crystal technology within a surface-mount format, providing reliable frequency stability for portable and battery-powered devices.

Feature Summary

• Integrates LVCMOS output logic for direct interfacing with digital components
• Supports standby operation via dedicated power-down functionality
• Utilizes a leadless surface-mount package for automated assembly

Applications

• Battery-powered portable electronics requiring low power consumption
• Clock signal generation for digital communication interfaces
• Frequency reference sources in compact consumer devices

Procurement Notes

Verify the specific ordering suffix matches the required frequency tolerance and load capacitance specifications. Confirm that the 1.8V supply requirement aligns with the target system's voltage rails. Ensure the 4-SMD no-lead package footprint corresponds to the PCB design guidelines. Check for any industry-specific certifications or reliability standards required for the intended deployment environment before finalizing procurement orders.

Selection Notes

Select this oscillator when a 10.7 MHz reference frequency is specifically required for the application. Consider the 1.8V operating voltage to ensure compatibility with low-voltage logic families. Evaluate the need for power-down capabilities if energy efficiency during idle states is a critical design parameter. Assess the physical size constraints to confirm the 2.0x1.6mm package fits within the available board real estate without compromising thermal or mechanical requirements.

Part Context

This component belongs to the Mercury Electronics XO series, which specializes in standard crystal oscillators for general-purpose timing applications. The series offers various frequencies and supply voltages to accommodate diverse electronic design needs. Mercury Electronics has established itself as a manufacturer of frequency control products since 1973, focusing on quartz crystals and oscillators. The 18QHTF21 model line emphasizes compact form factors and low power consumption, targeting modern portable and embedded systems.

Replacement Considerations

Direct substitutes include other 10.7 MHz LVCMOS oscillators from Mercury Electronics such as the 3QHTF57-10.700-PD, though package dimensions and voltage levels may differ. Verify pinout compatibility and electrical parameters before swapping components. Alternative manufacturers may offer similar specifications but require thorough validation of frequency stability and output drive strength.