18QHTF21-25.175-PD

Oscillators Overview

The 18QHTF21-25.175-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 25.175 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to reduce consumption during inactivity. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component serves as a precise timing source for electronic circuits requiring low-voltage operation and small form factors.

Oscillators Feature Summary

• Supports standby mode for power management
• Utilizes LVCMOS output interface
• Compact surface-mount packaging

Oscillators Applications

• Portable consumer electronics
• Communication modules
• Embedded systems

Oscillators Procurement Notes

Verify the specific operating temperature range and frequency stability specifications against the official datasheet before integration. Ensure the 1.8V supply rail is stable and within tolerance limits to maintain oscillator performance. Confirm that the PCB footprint matches the 2.0x1.6mm SMD package dimensions precisely to avoid assembly issues.

Oscillators Selection Notes

Select this component when a low-profile, low-voltage oscillator is required for space-constrained designs. The 1.8V supply requirement makes it suitable for modern battery-powered devices. Consider the LVCMOS output compatibility with the target microcontroller or FPGA I/O standards. Verify that the 25.175 MHz frequency aligns with the system clock requirements.

Oscillators Part Context

This part belongs to the QHTF series of quartz crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options in a standardized small outline package. The 'PD' suffix indicates the inclusion of a power-down control feature. Mercury Electronics specializes in frequency control products, providing reliable timing solutions for industrial and commercial applications.

Oscillators Replacement Considerations

Direct substitutes include other 1.8V LVCMOS oscillators in 2.0x1.6mm packages with similar frequency accuracy. Check pinout compatibility and electrical characteristics carefully. Alternative models from the same manufacturer with different frequencies may share mechanical dimensions but require firmware adjustments.