18QHTF21-25.00625-OE

Oscillators Overview

The 18QHTF21-25.00625-OE is a surface-mount crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 25.00625 MHz with LVCMOS output logic. The device supports an enable/disable function and requires a supply voltage compatible with the 1.8V specification typical for this series. Key electrical parameters include a maximum supply current of 23mA and a frequency stability of ±50ppm. The component is housed in a compact 4-SMD, No Lead package designed for automated assembly. It functions within an operating temperature range of -40°C to 85°C, ensuring reliability across industrial environments.

Oscillators Feature Summary

• Integrated enable/disable control functionality for power management
• LVCMOS output logic interface for digital circuit compatibility
• Surface mount construction utilizing a leadless SMD package

Oscillators Applications

• Precision timing circuits requiring stable clock signals
• Industrial electronic devices operating in wide temperature ranges
• Digital systems utilizing LVCMOS logic standards

Oscillators Procurement Notes

Verify the specific supply voltage requirement against the official datasheet, as similar model numbers may support different voltages. Confirm the exact pinout and mechanical dimensions match the target PCB footprint. Ensure the frequency tolerance of ±50ppm meets the system's timing accuracy requirements before finalizing procurement.

Oscillators Selection Notes

Select this component when a low-profile surface-mount oscillator with enable control is required. Consider the ±50ppm stability limit for applications sensitive to frequency drift. Evaluate the 23mA maximum current consumption against system power budgets. Verify that the LVCMOS output levels are compatible with the receiving logic inputs.

Oscillators Part Context

This part belongs to the QHTF series of crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options in a standardized small form factor. The suffix indicates specific configuration details regarding frequency and packaging. This series is designed for applications demanding reliable timing solutions in space-constrained designs.

Oscillators Replacement Considerations

Direct substitutes must match the 25.00625 MHz frequency, LVCMOS output, and 4-SMD no-lead package. Verify equivalent stability and temperature range specifications. Cross-reference pinouts to ensure compatibility without redesigning the PCB layout.