18QHTF21-43.000-PD

Oscillators Overview

The 18QHTF21-43.000-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 43 MHz with an LVCMOS output logic level. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6 mm. This component is designed for timing applications requiring precise clock signals in space-constrained electronic systems.

Oscillators Feature Summary

• LVCMOS output interface for digital circuit compatibility
• Integrated standby mode for power reduction
• Compact surface-mount package design

Oscillators Applications

• General purpose timing circuits
• Embedded system clock generation
• Digital signal processing interfaces

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any RoHS compliance documentation if required by your manufacturing standards.

Oscillators Selection Notes

Select this model when a 43 MHz clock source with LVCMOS outputs is required. Consider the 1.8V operating voltage and standby feature for power-sensitive designs. Evaluate the 2.0x1.6 mm package size against available board space. Compare performance metrics such as phase noise and stability if high-precision timing is critical for your application.

Oscillators Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series typically offers various frequencies and supply voltages. The PD suffix indicates the presence of a power-down control pin. Similar parts in the series may differ in frequency, voltage, or package type while maintaining the same form factor and output logic.

Oscillators Replacement Considerations

Direct replacements must match the 43 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical specifications. Cross-reference with other manufacturers offering similar SMD oscillators if Mercury Electronics availability is limited.