18QHTF21-1.340-PD

Overview

The 18QHTF21-1.340-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 1.34 MHz with 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 2.0mm x 1.6mm.

Feature Summary

• Integrates LVCMOS output interface for digital circuit compatibility
• Features low power consumption with dedicated standby mode
• Utilizes surface-mount packaging for automated assembly

Applications

• General clock signal generation for embedded systems
• Timing reference for microcontroller units
• Synchronization in consumer electronic devices

Procurement Notes

Verify the specific suffix 'PD' confirms the power-down capability and 1.8V operation when sourcing. Ensure the ordering part number matches the exact frequency specification of 1.34 MHz to avoid functional mismatches in timing-critical designs.

Selection Notes

Select this component when a precise 1.34 MHz clock source is required in space-constrained applications. The choice depends on the necessity for LVCMOS signaling levels and the integration of power-saving standby features within the system architecture.

Part Context

This model belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequency options within a standardized small footprint, catering to modern electronics requiring reliable timing solutions with minimal board space utilization.

Replacement Considerations

Direct substitutes must match the 1.34 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package dimensions. Verify pinout compatibility and electrical specifications before swapping with other manufacturers' offerings.