18QHTF21-11.184-PD

Overview

The 18QHTF21-11.184-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 11.184 MHz and utilizes LVCMOS output logic. The device is designed for low voltage applications, featuring a supply voltage of 1.8V. It includes a standby or power-down function to manage energy consumption during inactive periods. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This surface-mount technology format facilitates automated assembly and integration into space-constrained electronic circuits.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby and power-down functionality for energy management
• Utilizes a compact 4-SMD no-lead surface mount package

Applications

• General purpose clock signal generation in embedded systems
• Timing reference for low-voltage digital circuits
• Consumer electronics requiring compact oscillators

Procurement Notes

Verify the specific orderable part number against the manufacturer's current catalog to ensure availability and correct specifications. Confirm that the 1.8V supply voltage requirement aligns with the target system design. Check for any recent updates to the datasheet regarding electrical characteristics or mechanical dimensions before finalizing procurement decisions.

Selection Notes

Select this component when a precise 11.184 MHz timing source is required for LVCMOS-compatible logic families. Consider the 1.8V operating voltage constraint and the need for power-down capabilities. Evaluate the 2.0x1.6 mm footprint against available PCB real estate. Ensure the operating temperature range meets the environmental requirements of the intended application environment.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal frequency control products. The series offers various standard frequencies in a small SMD form factor. Mercury Electronics has a long history in the quartz industry, providing reliable timing solutions for global electronics manufacturers.

Replacement Considerations

Direct substitutes must match the 11.184 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical parameters such as load capacitance and drive level before substituting.