18QHTF21-13.401563-PD

Overview

The 18QHTF21-13.401563-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 13.401563 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Integrates LVCMOS output interface for digital circuit compatibility
• Features a low-profile 4-SMD no-lead surface mount package
• Includes standby mode capability to reduce power consumption

Applications

• General clock signal generation for embedded systems
• Timing reference for consumer electronics devices
• Clock source for portable communication modules

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before ordering. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to prevent assembly errors during manufacturing.

Selection Notes

Select this component when a precise 13.401563 MHz timing source is required for low-voltage applications. Consider the LVCMOS output level compatibility with downstream logic gates. Evaluate the thermal performance within the 4-SMD package constraints relative to the operating environment temperature range specified in the official datasheet.

Part Context

This part belongs to the QHTF series of quartz crystal oscillators from Mercury Electronics. The series is characterized by small form factors suitable for space-constrained designs. The 'PD' suffix indicates the inclusion of a power-down control feature, distinguishing it from continuous-operation variants within the same family.

Replacement Considerations

Direct substitutes must match the 13.401563 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical specifications such as phase noise and jitter if available in competitor datasheets.