18QHTF21-85.000-OE

Overview

The 18QHTF21-85.000-OE is a standard frequency crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 85 MHz and utilizes LVCMOS output logic levels. The device is powered by a single 1.8V supply voltage and features an enable/disable control function for power management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6 mm. This component is designed for timing applications requiring precise clock signals in space-constrained electronic systems.

Feature Summary

• Supports LVCMOS output logic levels for digital interface compatibility
• Includes enable/disable pin functionality for active power control
• Utilizes a small form factor 4-SMD no-lead surface mount package

Applications

• Digital signal processing clock sources
• Microcontroller system timing references
• Communication equipment clock generation

Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the official datasheet before integration. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the LVCMOS output swing is compatible with downstream logic inputs. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component when a low-profile surface mount oscillator is required for 85 MHz applications. The 1.8V supply makes it suitable for modern low-power digital circuits. The enable feature allows for dynamic power saving in battery-operated devices. Consider the thermal characteristics and mounting reliability of the SMD package during PCB layout.

Part Context

This part belongs to the Mercury Electronic 18QHTF21 series of surface mount crystal oscillators. The series offers various frequencies and package sizes to meet diverse timing needs. Mercury Electronics specializes in frequency control products, including quartz crystals and oscillators, providing reliable timing solutions for industrial and consumer electronics markets.

Replacement Considerations

Direct substitutes must match the 85 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify pinout compatibility and electrical specifications such as jitter and stability before substitution.