18QHTF21-45.250-OE

Oscillators Overview

The 18QHTF21-45.250-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 45.25 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features enable/disable functionality for power management. Frequency stability is specified at ±50ppm, and it supports an operating temperature range from -40°C to 85°C. The component is housed in a compact 4-SMD, no lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Integrated enable/disable control for efficient power management
• LVCMOS output logic compatible with standard digital interfaces
• Compact surface-mount package design suitable for space-constrained applications

Oscillators Applications

• General purpose clock signal generation
• Embedded system timing references
• Consumer electronics circuit boards

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 voltage aligns with the system's power rails. Ensure the operating temperature range meets the environmental conditions of the intended deployment scenario. Cross-reference the package dimensions with the PCB footprint to guarantee mechanical compatibility during assembly.

Oscillators Selection Notes

Select this component when a low-voltage, small-footprint oscillator with enable control is required. Consider the ±50ppm stability specification relative to the system's jitter budget. Evaluate the LVCMOS output swing against the input thresholds of downstream logic devices. Assess the thermal performance within the -40°C to 85°C range for the specific application environment.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options within a standardized 2.0x1.6mm package. The 'OE' suffix indicates the inclusion of an enable pin, distinguishing it from basic continuous-output variants in the same family.

Oscillators Replacement Considerations

Direct substitutes must match the 45.25 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify equivalent stability and temperature ratings. Check pinout compatibility for the enable function. No other specific substitute part numbers are publicly confirmed.