18QHTF21-40.260-OE

Oscillators Overview

The 18QHTF21-40.260-OE is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 40.26 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Integrated enable and disable functionality for power management
• Compact surface-mount design suitable for space-constrained applications
• LVCMOS output interface compatible with standard digital logic

Oscillators Applications

• General clock signal generation in embedded systems
• Timing reference for digital communication interfaces
• Power-sensitive portable electronic devices requiring low voltage operation

Oscillators Procurement Notes

Verify the specific ordering suffix against official Mercury Electronics documentation to ensure correct frequency and voltage specifications. Confirm that the OE variant matches the required enable/disable pin configuration. Cross-reference the package outline drawing to validate mechanical fit within the target assembly. Ensure compliance with RoHS directives if applicable to the end product requirements.

Oscillators Selection Notes

Select this component when a precise 40.26 MHz timing source is required with minimal footprint constraints. The 1.8V supply requirement makes it suitable for modern low-voltage digital circuits. Consider the enable feature if system-level power optimization is necessary during idle states. Verify that the LVCMOS swing levels are compatible with the receiving input thresholds of the connected logic components.

Oscillators Part Context

This part belongs to the QHTF series of high-frequency oscillators from Mercury Electronics. The series typically offers various frequencies and supply voltages in small SMD packages. The 18QHTF21 designation indicates specific electrical characteristics and form factor within the manufacturer's portfolio of quartz-based timing solutions.

Oscillators Replacement Considerations

Direct substitutes must match the 40.26 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility, particularly the enable pin assignment. Check thermal and electrical specifications against original datasheet limits before substitution.