18QHTF21-86.650-PD

Overview

The 18QHTF21-86.650-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 86.65 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down function via standby mode. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode for power-down functionality
• Utilizes quartz crystal technology for frequency stability

Applications

• General clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target application design. Confirm that the 1.8V supply voltage aligns with the system power architecture. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical retention during assembly processes.

Selection Notes

Select this component when a precise 86.65 MHz clock source is required with low voltage operation. Consider the 1.8V supply constraint and LVCMOS interface compatibility. Evaluate the small 2.0x1.6 mm form factor for space-constrained designs. Verify thermal performance within the specified operating temperature range for the intended environment.

Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency control solutions. The manufacturer has produced frequency control products since 1973, establishing expertise in quartz-based components. This specific model represents a single-ended oscillator variant within their broader portfolio of crystals and oscillators.

Replacement Considerations

Other models in the 18QHTF21 series offer different frequencies such as 51.2 MHz or 68.665 MHz. These variants share similar packaging and electrical characteristics but differ in output frequency. Direct substitution requires matching the specific frequency requirement of the circuit design.