18QHTF21-1.510-OE

Overview

The 18QHTF21-1.510-OE is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 1.51 MHz and utilizes a 1.8V supply voltage. The device features an LVCMOS output signal type and includes Enable/Disable functionality for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• LVCMOS output signal compatibility
• Enable/Disable control functionality
• Compact 4-SMD No Lead surface mount package

Applications

• Portable electronic devices requiring low power consumption
• Embedded systems utilizing 1.8V logic levels
• Timing reference sources for microcontrollers

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V operating voltage aligns with your system's power rail. Ensure the 4-SMD No Lead footprint matches your PCB layout constraints. Check for any specific ordering suffixes required for tape and reel packaging if applicable to your assembly process.

Selection Notes

Select this component when a precise 1.51 MHz timing source is required within space-constrained designs. The 1.8V operation makes it suitable for modern low-voltage digital circuits. Consider the enable/disable feature if power efficiency during idle states is a critical design parameter. Verify that the LVCMOS output swing is compatible with the input thresholds of the receiving logic gates.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within the same physical footprint. The series supports both standard and wide temperature ranges depending on the specific suffix. Mercury Electronics specializes in quartz crystals and oscillators, providing reliable timing solutions for consumer and industrial electronics markets globally.

Replacement Considerations

Direct replacements must match the 1.51 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter specifications. Consult manufacturer cross-reference lists for equivalent parts from other suppliers offering identical form-factor and performance metrics.