18QHTF21-86.950-PD

Overview

The 18QHTF21-86.950-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 86.95 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby power-down function to reduce consumption during idle periods. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component serves as a precise clock source for digital circuits requiring low-profile integration.

Feature Summary

• Integrates LVCMOS output logic for direct interfacing with digital systems
• Includes standby mode capability to minimize power usage when inactive
• Utilizes a leadless surface-mount package for space-constrained designs

Applications

• Clock generation for high-speed digital signal processing units
• Timing reference for communication interface modules
• System clock source for embedded microcontroller applications

Procurement Notes

Verify the specific operating temperature range 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 4-SMD no-lead footprint matches the PCB land pattern exactly to prevent soldering defects. Cross-reference the datasheet for any specific reflow soldering profile recommendations to maintain component integrity during assembly.

Selection Notes

Select this oscillator when a low-voltage 1.8V supply is available and a small form factor is required. The LVCMOS output is suitable for standard logic families. Consider the standby feature if power management is critical. Compare against other frequencies in the 18QHTF21 series if different timing references are needed. Ensure the application does not require differential outputs or higher voltage levels.

Part Context

This part belongs to the 18QHTF21 series of quartz crystal oscillators from Mercury Electronics. The series offers various frequencies within a standardized 2.0x1.6 mm package. Mercury Electronics is a specialized manufacturer of frequency control products with a long history in the quartz industry. This specific model provides a stable clock signal for modern electronic devices requiring compact timing solutions.

Replacement Considerations

Direct substitutes may include other 18QHTF21 series variants with compatible frequencies. Verify pinout compatibility and electrical specifications before swapping. Alternative packages such as 25QHTF53 offer larger footprints but similar functionality. Always confirm frequency tolerance and stability requirements match the original design intent.