18QHTF21-85.450-PD

Overview

The 18QHTF21-85.450-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 85.45 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a compact 4-SMD, no-lead package. Key functional capabilities include standby mode support for power-down operations. This component is designed for applications requiring precise timing signals within a small form factor.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby functionality to enable power-down states
• Utilizes a surface-mount 4-SMD no-lead package design

Applications

• General clock signal generation in electronic circuits
• Timing reference sources for digital systems
• Embedded devices requiring low-voltage operation

Procurement Notes

Verify the specific datasheet from Mercury Electronics Ind. Co., Ltd. to confirm electrical parameters and mechanical dimensions. Ensure the 1.8V supply requirement aligns with system design. Check for RoHS compliance status if required by project specifications. Confirm the 4-SMD package type matches PCB footprint constraints before ordering.

Selection Notes

Select this component when an 85.45 MHz frequency is specifically required. Consider the 1.8V operating voltage constraint against available power rails. Evaluate the LVCMOS output swing requirements for downstream logic levels. Assess the space limitations for the 4-SMD package size in the target application layout.

Part Context

This part belongs to the Mercury Electronics XO series, which provides standard oscillators. The model number indicates the specific frequency and package configuration. Similar parts in the series may offer different frequencies or voltage options while maintaining the same physical footprint and output logic standards.

Replacement Considerations

Direct substitutes must match the 85.45 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and thermal characteristics. Consult manufacturer cross-reference lists for approved replacements.