18QHTF21-25.0001-PD

Oscillators Overview

The 18QHTF21-25.0001-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 25.0001 MHz and utilizes LVCMOS output logic. The device is designed for low voltage applications, requiring a supply voltage of 1.8V. It features a power-down control function for standby mode management. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes power-down functionality for standby mode operation
• Designed for low voltage 1.8V supply requirements

Oscillators Applications

• General purpose clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Oscillators Procurement Notes

Verify the exact part number suffix to ensure correct frequency and package configuration. Confirm that the 1.8V supply voltage aligns with the target circuit design. Check for availability of the specific 4-SMD no lead package variant. Ensure the power-down feature is utilized if standby current reduction is required. Cross-reference manufacturer documentation for detailed electrical specifications before integration.

Oscillators Selection Notes

Select this component when a precise 25.0001 MHz clock source is needed for low voltage systems. The small 2.0x1.6 mm footprint makes it suitable for space-constrained designs. Consider the LVCMOS output level compatibility with downstream logic devices. Evaluate the power-down capability against system power management strategies. Verify operating temperature range requirements against application environmental conditions.

Oscillators Part Context

This oscillator belongs to the QHTF series from Mercury Electronics, which focuses on miniature surface-mount crystal oscillators. The series typically offers various frequencies and supply voltages. The 18 prefix indicates the 1.8V supply variant. The PD suffix denotes the power-down control feature. This family targets portable and high-density electronic applications.

Oscillators Replacement Considerations

Direct substitutes must match the 25.0001 MHz frequency, 1.8V supply, and LVCMOS output. Compatible packages include 4-SMD no lead with 2.0x1.6 mm dimensions. Verify pinout compatibility and electrical characteristics before substitution. Consult manufacturer cross-reference lists for approved alternatives.