18QHTF21-14.746-PD

Oscillators Overview

The 18QHTF21-14.746-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 14.746 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby mode for power down functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby capability for power management
• Utilizes LVCMOS output interface

Oscillators Applications

• Digital signal processing systems
• Communication equipment timing
• Embedded control circuits

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail is stable within the operational limits specified in the official datasheet to ensure reliable oscillator performance and longevity.

Oscillators Selection Notes

Select this component when a precise 14.746 MHz clock source is required in a space-constrained environment. The choice is driven by the need for LVCMOS compatibility and low-power standby features. Ensure the application board layout supports the 4-SMD no-lead package footprint for optimal thermal and electrical performance.

Oscillators Part Context

This model belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series is characterized by small form factors suitable for portable electronics. The suffix PD indicates the inclusion of a power-down pin or function, distinguishing it from continuous-operation variants within the same family.

Oscillators Replacement Considerations

Direct replacements must match the 14.746 MHz frequency, 1.8V supply, and LVCMOS output type. Verify that alternative components support the same 4-SMD no-lead package dimensions (2.0x1.6mm) to maintain mechanical compatibility without requiring PCB redesign.