18QHTF21-26.5625-PD

Oscillators Overview

The 18QHTF21-26.5625-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 26.5625 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a standby function for power down control. It is housed in a compact 4-SMD, No Lead package suitable for surface mount applications. The component supports an operating temperature range from -40°C to 85°C and maintains a frequency stability of ±50ppm.

Oscillators Feature Summary

• Supports standby mode for power management
• Compact surface-mount package design
• LVCMOS output compatibility

Oscillators Applications

• General purpose timing circuits
• Digital signal processing systems
• Communication equipment clock sources

Oscillators Procurement Notes

Verify the specific ordering suffix PD against the manufacturer's current datasheet to ensure correct packaging configuration. Confirm that the 1.8V supply requirement aligns with the target system's power rails. Check the lead time availability through authorized distributors as stock levels fluctuate. Ensure the operating temperature range meets the environmental requirements of the final assembly.

Oscillators Selection Notes

Select this component when a precise 26.5625 MHz reference is required for LVCMOS interfaces. Consider the 1.8V supply constraint and the need for active low standby functionality. Evaluate the thermal performance within the specified -40°C to 85°C range. Compare size constraints against the 4-SMD footprint requirements of the PCB layout.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies with consistent electrical characteristics. The 'PD' suffix typically indicates a specific tape and reel packaging format for automated assembly. This model provides a stable clock source for digital systems requiring low jitter and reliable timing.

Oscillators Replacement Considerations

Direct substitutes must match the 26.5625 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and thermal specifications before substitution.