18QHTF21-86.863-PD

Overview

The 18QHTF21-86.863-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 86.863 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down (PD) control function to manage standby states. It is housed in a compact 4-SMD package with no lead configuration, measuring 2.0mm by 1.6mm in footprint dimensions.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes power-down functionality for energy management
• Utilizes a leadless SMD package for surface mount integration

Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded system timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB layout accommodates the 2.0x1.6mm 4-SMD footprint and that the power-down pin is correctly interfaced for standby control. Cross-reference the manufacturer datasheet for thermal and electrical specifications.

Selection Notes

Select this component when a precise 86.863 MHz reference is required for low-voltage digital circuits. The LVCMOS output ensures compatibility with standard logic families. The integrated power-down feature allows for dynamic power management in battery-operated or energy-efficient designs. Consider the small form factor for space-constrained applications requiring high-frequency stability.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series offers various frequencies within a standardized 2.0x1.6mm package. The 'PD' suffix denotes the inclusion of a power-down control pin, distinguishing it from models without this feature. Mercury Electronics has established expertise in Taiwan's quartz industry since 1973.

Replacement Considerations

Direct substitutes must match the 86.863 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify that replacement parts also include power-down functionality if standby control is required. Check for equivalent frequency stability and phase noise specifications to ensure circuit performance remains unaffected.