18QHTF21-114.544-PD

Overview

The 18QHTF21-114.544-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 114.544 MHz with a supply voltage of 1.8V. The device utilizes LVCMOS output logic and features a Standby (Power Down) function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports Standby (Power Down) mode for power management
• Utilizes LVCMOS output logic interface
• Compact 4-SMD, No Lead surface mount package

Applications

• General clock signal generation
• Digital system timing references
• Embedded electronics applications

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Check for RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this component when a precise 114.544 MHz clock source is required in a low-profile surface-mount form factor. The 1.8V operating voltage makes it suitable for modern low-power digital circuits. Consider the LVCMOS output compatibility with your downstream logic inputs. The standby feature offers flexibility for power-sensitive designs requiring periodic sleep modes.

Part Context

This part belongs to the QHTF series of crystal oscillators from Mercury Electronics. These devices are designed for high-frequency applications requiring stable clock signals. The series typically offers various frequencies and voltage options within small packages, catering to space-constrained electronic designs.

Replacement Considerations

Direct substitutes must match the 114.544 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical specifications before swapping manufacturers.