18QHTF21-100.500-PD

Overview

The 18QHTF21-100.500-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 100.5 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby function for power down control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.00mm x 1.60mm. This component is designed for surface mount applications requiring precise timing signals.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode capability for power management
• Utilizes low profile surface mount packaging

Applications

• Battery-powered portable devices
• Digital signal processing systems
• Communication equipment requiring 100.5 MHz clock signals

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 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this model when a 100.5 MHz clock source is required with low voltage operation. The LVCMOS output ensures compatibility with standard digital logic families. Consider the standby feature if power efficiency is critical. The small form factor suits space-constrained designs. Verify temperature range requirements against the datasheet specifications for the intended operating environment.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within the same physical package. The series provides standardized timing solutions for consumer electronics and industrial applications. The 'PD' suffix typically indicates a specific tape and reel packaging option or variant configuration defined by the manufacturer for automated assembly processes.

Replacement Considerations

Direct substitutes include other 18QHTF21 series variants such as 18QHTF21-51.200-PD or 18QHTF21-18.1059-PD if different frequencies are acceptable. Cross-reference pinouts and electrical characteristics carefully. Ensure any replacement maintains the 1.8V supply and LVCMOS output requirements for circuit compatibility.