18QHTF21-38.910-PD

Oscillators Overview

The 18QHTF21-38.910-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, operating at a fixed frequency of 38.91 MHz. It utilizes LVCMOS output logic and functions with a supply voltage of 1.8V. The device features a standby or power-down capability for energy management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode functionality to reduce power consumption
• Utilizes a lead-free SMD package for automated assembly

Oscillators Applications

• General clock signal generation in electronic circuits
• Timing reference sources for digital systems
• Embedded devices requiring low-voltage oscillators

Oscillators Procurement Notes

Verify the specific ordering suffix PD against the manufacturer's current documentation to ensure correct packaging and handling specifications. Confirm that the 1.8V supply requirement aligns with the target system design before procurement. Cross-reference the 4-SMD no-lead footprint dimensions with the PCB layout to guarantee mechanical fit and soldering reliability during assembly processes.

Oscillators Selection Notes

Select this component when a precise 38.91 MHz timing source is required within a low-voltage environment. The LVCMOS output ensures direct interfacing with compatible digital logic families without additional level shifting. Consider the standby feature if power efficiency is a critical design constraint for the end application.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency control solutions. The 18QHTF21 prefix indicates a specific form factor and performance class within the manufacturer's portfolio, distinct from other variants like the 18QHTF32 series which may differ in physical dimensions or electrical characteristics.

Oscillators Replacement Considerations

Direct substitutes include other 38.91 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and thermal requirements when replacing. Ensure the alternative component supports the necessary standby function if power management is required.