18QHTF21-91.500-OE

Overview

The 18QHTF21-91.500-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 91.5 MHz and utilizes LVCMOS output logic. The device is designed for surface mount applications, featuring a compact 4-SMD, No Lead package configuration. It supports a supply voltage of 1.8V and includes an enable/disable control function for power management. The component is rated for an operating temperature range of -40°C to 85°C, ensuring reliability in various industrial environments.

Feature Summary

• Standard XO (Crystal Oscillator) with LVCMOS output logic
• Integrated Enable/Disable control functionality
• Compact 4-SMD, No Lead surface mount package
• Wide operating temperature range suitable for industrial use

Applications

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

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Check for any specific handling instructions regarding electrostatic discharge protection during assembly.

Selection Notes

Select this component when a precise 91.5 MHz clock source is required with low profile packaging. Consider the LVCMOS interface compatibility with your target digital logic family. Evaluate the thermal performance within the -40°C to 85°C range against your application's environmental conditions. Verify that the enable/disable feature meets your power management strategy needs.

Part Context

This part belongs to the Mercury Electronic Ind. Co., Ltd. line of quartz crystal oscillators. The manufacturer specializes in frequency control products including crystals, TCXOs, and VCTCXOs. The 18QHTF series represents their standard surface-mount oscillator offerings, providing reliable timing solutions for electronic systems requiring stable clock signals.

Replacement Considerations

Compatible substitutes include other 91.5 MHz LVCMOS oscillators in 4-SMD packages from Mercury or alternative manufacturers. Ensure replacement parts match the 1.8V supply requirement and pinout configuration. Verify that the frequency stability and temperature range meet or exceed the original specifications.