18QHTF21-25.006-PD

Oscillators Overview

The 18QHTF21-25.006-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 25.006 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a power-down standby function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V for energy efficiency
• Includes power-down capability to reduce consumption during standby
• Delivers standard LVCMOS output signals for digital interface compatibility

Oscillators Applications

• Digital signal processing circuits requiring precise timing
• Communication systems utilizing standard clock frequencies
• Embedded microcontroller systems needing compact oscillators

Oscillators 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 no-lead package footprint matches your PCB layout constraints. Check for any specific handling instructions regarding electrostatic discharge sensitivity.

Oscillators Selection Notes

Select this component when a 25.006 MHz frequency is required within a 2.0x1.6mm form factor. Consider the 1.8V operating voltage if lower power consumption is necessary compared to 3.3V or 5V alternatives. The LVCMOS output is suitable for direct interfacing with standard digital logic families without additional buffering.

Oscillators Part Context

This part belongs to the QHTF series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and voltages, including 2.5V variants like the 25QHTF21 model. The 'PD' suffix indicates the inclusion of a power-down feature, distinguishing it from continuous-operation models.

Oscillators Replacement Considerations

Direct substitutes include other 25.006 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Cross-reference with similar Mercury parts such as the 18QHTF21-24.000-PD if frequency flexibility exists. Verify pinout compatibility and thermal characteristics when replacing.