18QHTF21-6.61125-PD

Overview

The 18QHTF21-6.61125-PD is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 6.61125 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and features a Standby (Power Down) control 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

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

Applications

• Portable electronic devices requiring low power consumption
• Communication equipment utilizing standard clock signals
• Embedded systems needing precise timing references

Procurement Notes

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

Selection Notes

Select this component when a small form factor and low voltage operation are required. Ensure the application supports LVCMOS logic levels and can accommodate the 2.0x1.6mm footprint. Verify compatibility with the system's power management strategy regarding the standby feature.

Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronic. The series offers various frequencies and voltages, designed for space-constrained applications. The 'PD' suffix typically indicates a specific tape and reel packaging configuration for automated assembly.

Replacement Considerations

Direct substitutes must match the 6.61125 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Cross-reference with other manufacturers offering similar SMD oscillators ensuring identical pinout and electrical characteristics.