18QHTF21-13.5231-PD

Overview

The 18QHTF21-13.5231-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 13.5231 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby (power down) function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.00mm x 1.60mm.

Feature Summary

• LVCMOS output interface
• Standby power control
• Compact surface mount package

Applications

• General purpose timing circuits
• Digital signal processing systems
• Communication equipment

Procurement Notes

Verify the specific frequency suffix matches the required system clock. Confirm the 1.8V supply requirement aligns with the target circuit design. Ensure the 4-SMD no-lead package footprint is compatible with the PCB layout. Check for any specific RoHS compliance documentation if required by project standards.

Selection Notes

Select this component when a precise 13.5231 MHz reference is needed with low power consumption capabilities. The LVCMOS output is suitable for direct interfacing with digital logic families operating at 1.8V. Consider the small form factor for space-constrained designs requiring reliable quartz-based timing.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products including quartz crystals and oscillators. The manufacturer is a Taiwan-based supplier established since 1973, focusing on precision timing components for various electronic applications.

Replacement Considerations

Direct substitutes must match the 13.5231 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility before swapping. Generic replacements may differ in phase noise or stability specifications.