18QHTF21-43.400-PD

Oscillators Overview

The 18QHTF21-43.400-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 43.4 MHz with a stability of 50 ppm. The device utilizes LVCMOS output logic and requires a supply voltage of 1.8V. Maximum current consumption is 23 mA. It features a Standby (Power Down) function for energy management. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Supports Standby mode for power reduction
• Utilizes LVCMOS output interface
• Compact surface-mount design

Oscillators Applications

• Electronic circuit clock generation
• Communication systems timing
• Digital signal processing interfaces

Oscillators Procurement Notes

Verify the specific suffix 'PD' against official Mercury Electronics documentation to confirm the presence of the Power Down feature. Ensure the 1.8V supply requirement aligns with system design constraints. Confirm that the 4-SMD No Lead package matches PCB footprint specifications before finalizing procurement orders.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside precise 43.4 MHz timing. The 50 ppm stability suits general digital applications. Consider the small 2.0x1.6mm form factor for space-constrained designs requiring integrated standby functionality.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and supply voltages. The 'PD' suffix typically indicates specific pinout or functional variations within the product line compared to other variants like 'OE'.

Oscillators Replacement Considerations

Direct substitutes include 18QHTF21-43.001-PD and 18QHTF21-48.7056-PD if different frequencies are acceptable. Verify pin compatibility and electrical parameters before swapping.