18QHTF21-45.604-PD

Oscillators Overview

The 18QHTF21-45.604-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 45.604 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down mode capability. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Generates a precise 45.604 MHz clock signal using LVCMOS logic levels.
• Operates on a single 1.8V power supply rail.
• Includes a standby function to reduce power consumption when not in use.
• Utilizes a small form-factor surface-mount package for space-constrained designs.

Oscillators Applications

• General-purpose digital clock generation in embedded systems
• Timing reference for microcontrollers and processors
• Data communication interface synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage matches your system's power rails. Confirm that the 4-SMD no-lead package footprint aligns with your PCB layout constraints. Check for RoHS compliance status if required by your manufacturing standards.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a specific 45.604 MHz frequency. The LVCMOS output is suitable for direct interfacing with standard CMOS logic inputs. Consider the standby feature if power management is critical. The small 2.0x1.6mm package is ideal for dense board layouts where space is limited compared to larger oscillator packages.

Oscillators Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options within a standardized small outline package. The 'PD' suffix likely indicates the presence of a power-down or standby control pin, distinguishing it from always-on variants in the same physical footprint family.

Oscillators Replacement Considerations

Direct replacements must match the 45.604 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility, specifically the standby control pin configuration. Cross-reference with other manufacturers offering similar ultra-small footprint oscillators with identical electrical specifications.