18QHTF21-90.3186-PD

Overview

The 18QHTF21-90.3186-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 90.3186 MHz with LVCMOS output logic and a supply voltage of 1.8V. The component features a 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. It includes standby (power down) functionality for power management.

Feature Summary

• Supports LVCMOS output logic for standard digital interface compatibility
• Integrates standby or power-down mode to reduce energy consumption during idle periods
• Utilizes a compact 4-SMD no-lead surface mount package design

Applications

• General clock signal generation in electronic circuits
• Timing reference for digital systems requiring 1.8V operation
• Embedded applications utilizing standard LVCMOS interfaces

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Ensure the 1.8V supply voltage aligns with the target circuit design. Confirm that the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability.

Selection Notes

Select this component when a precise 90.3186 MHz timing source is required within a low-voltage 1.8V system. The choice is appropriate for designs prioritizing small form factors due to the 2.0x1.6 mm package size. Consider the standby feature if power efficiency during non-operational states is a critical design constraint.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized 1.8V LVCMOS format. The series provides consistent packaging and electrical characteristics across different frequency options, facilitating inventory simplification for manufacturers designing multiple products with similar timing requirements.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical package and voltage but different frequencies, such as 18QHTF21-51.200-PD or 18QHTF21-48.7056-PD, provided the frequency difference is acceptable for the application.