18QHTF21-13.547-PD

Overview

The 18QHTF21-13.547-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 13.547 MHz and utilizes LVCMOS output logic. The device is designed for surface mount applications in a 4-SMD, No Lead package. It functions with a supply voltage of 1.8V and includes a standby or power-down feature for energy management. This component serves as a precise timing clock source for electronic circuits requiring stable frequency generation.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode functionality to reduce power consumption
• Utilizes a compact 4-SMD no lead surface mount package

Applications

• General purpose timing clock sources
• Digital signal processing systems
• Communication equipment

Procurement Notes

Verify the specific frequency suffix matches the required 13.547 MHz specification. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 4-SMD package footprint is compatible with the PCB layout. Check for any specific ordering suffixes that may alter electrical characteristics or packaging options before finalizing procurement.

Selection Notes

Select this model when a low-profile surface mount oscillator is required for 1.8V logic systems. Consider the LVCMOS output type for direct interfacing with standard digital components. Evaluate the thermal operating range against environmental conditions. Compare physical dimensions against available board space constraints to ensure proper mechanical fit during assembly.

Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of standard crystal oscillators. The series offers various frequency options within a consistent 4-SMD form factor. These devices are engineered for reliability in consumer and industrial electronics. The manufacturer provides multiple frequency variants to suit different clocking requirements while maintaining uniform pinout and electrical profiles.

Replacement Considerations

Direct substitutes include other 18QHTF21 series parts with identical frequencies such as 18QHTF21-13.5545-PD if tolerance allows. Verify pin compatibility and voltage levels when cross-referencing with similar Mercury oscillators. Ensure replacement parts maintain the same LVCMOS output and package style.