18QHTF21-25.009-PD

Oscillators Overview

The 18QHTF21-25.009-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 25.009 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 2.0x1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby functionality for power management
• Utilizes LVCMOS output interface

Oscillators Applications

• General clock signal generation
• Embedded system timing
• Digital circuit synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your target circuit's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints to guarantee proper assembly and electrical connectivity.

Oscillators Selection Notes

Select this component when a precise 25.009 MHz clock source is required for low-power applications. The 1.8V operating voltage makes it suitable for modern portable devices. Consider the small 2.0x1.6 mm form factor for space-constrained designs. Verify compatibility with LVCMOS logic levels in the receiving circuitry to ensure signal integrity.

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 indicates the inclusion of a power-down control feature, distinguishing it from continuous-output variants in the same family.

Oscillators Replacement Considerations

Direct substitutes may include other 25.009 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and thermal characteristics. Cross-reference with similar Mercury models like the 25QHTF21 series if voltage differences are acceptable.