18QHTF21-103.800-PD

Overview

The 18QHTF21-103.800-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 103.8 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a standby function for power down control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby mode for power management
• Provides LVCMOS signal output

Applications

• General timing circuits requiring precise clock signals
• Embedded systems utilizing low-power components
• Digital communication interfaces

Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required frequency and voltage levels. Confirm that the 4-SMD no-lead package matches the target PCB footprint. Check datasheet specifications for operating temperature ranges and load capacitance requirements before integration into final designs.

Selection Notes

Select this component when a 103.8 MHz clock source is required with LVCMOS compatibility. Ensure the design supports 1.8V logic levels and accommodates the small 2.0x1.6mm form factor. Consider the standby feature if power efficiency during idle states is a priority for the application.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, a supplier specializing in quartz crystals and oscillators. The series typically offers various frequencies within a standardized surface-mount package, providing consistent mechanical dimensions across different frequency options.

Replacement Considerations

Direct substitutes must match the 103.8 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics with alternative manufacturers before substitution.