18QHTF21-18.874368-PD

Oscillators Overview

The 18QHTF21-18.874368-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 18.874368 MHz with a frequency stability of ±50ppm. The device utilizes LVCMOS output logic and functions at a supply voltage of 1.8V. It features a Standby (Power Down) control mode for power management. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• Standard XO configuration with LVCMOS output interface
• Integrated standby function for power down capability
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• General purpose digital signal processing circuits
• Communication equipment requiring precise timing references
• Embedded systems utilizing low-voltage logic interfaces

Oscillators Procurement Notes

Verify the specific ordering suffix to confirm the exact frequency and control pinout configuration. Ensure compatibility with the target board's thermal requirements and soldering profile for 4-SMD packages. Cross-reference the manufacturer datasheet for absolute maximum ratings before integration into final designs.

Oscillators Selection Notes

Select this component when a 1.8V supply voltage and LVCMOS output levels are required. The ±50ppm stability rating suits applications with moderate timing precision needs. Consider the physical footprint constraints as the package measures 2.0x1.6 mm, making it suitable for space-sensitive designs.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequency options within a consistent small outline package format. The model number indicates the specific frequency and control functionality associated with this variant.

Oscillators Replacement Considerations

Direct substitutes must match the 18.874368 MHz frequency, 1.8V operating voltage, LVCMOS output type, and 4-SMD 2.0x1.6mm package dimensions. Verify that alternative sources provide equivalent ±50ppm stability and identical standby control logic.