18QHTF21-25.99845-PD

Oscillators Overview

The 18QHTF21-25.99845-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 25.99845 MHz with an LVCMOS output logic level. The device functions on a single 1.8V supply voltage and includes a standby or power-down control feature for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

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

Oscillators Applications

• Digital signal processing systems
• Communication equipment timing
• Embedded microcontroller clock sources

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required voltage levels and packaging formats. Confirm that the 1.8V supply requirement aligns with the target system design. Check for RoHS compliance status if environmental regulations apply. Ensure the 4-SMD no-lead footprint matches the PCB layout specifications before finalizing procurement orders.

Oscillators Selection Notes

Select this component when a stable 25.99845 MHz reference is needed for low-power digital circuits. The LVCMOS output ensures direct interfacing with standard logic families without additional buffering. Consider the small 2.0x1.6mm package size for space-constrained designs. Verify thermal performance requirements against the specified operating temperature range during selection.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which focuses on miniature surface-mount crystal oscillators. The series typically offers various frequencies and voltage options within a standardized footprint. Mercury Electronics has established itself as a manufacturer of frequency control products, providing components for consumer electronics and industrial applications.

Oscillators Replacement Considerations

Direct substitutes must match the 25.99845 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Cross-reference part numbers from other manufacturers offering identical electrical parameters and mechanical dimensions to ensure pinout compatibility.