18QHTF21-1.536-OE

Overview

The 18QHTF21-1.536-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 1.536 MHz and utilizes LVCMOS output logic levels. The component requires a 1.8V supply voltage and features enable/disable functionality for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The device supports an operating temperature range of -40°C to 85°C and maintains a frequency stability of ±50ppm.

Feature Summary

• LVCMOS output interface
• Enable/Disable control function
• Compact 4-SMD no lead package

Applications

• General clock signal generation
• Embedded system timing
• Consumer electronics circuits

Procurement Notes

Verify the specific frequency suffix matches the required 1.536 MHz specification. Confirm the 1.8V supply requirement aligns with the target circuit design. Ensure the LVCMOS output compatibility is validated against the receiving input pins. Check the operating temperature range suitability for the intended environment.

Selection Notes

Select this component when a low-voltage 1.8V operation is required. The small 2.0x1.6mm footprint is suitable for space-constrained PCB layouts. The enable/disable feature allows for dynamic power saving in battery-operated devices. Verify that the ±50ppm stability meets the system's timing accuracy requirements.

Part Context

This part belongs to the 18QHTF21 series of standard XO oscillators from Mercury Electronics. The series offers various frequencies within a consistent 4-SMD package form factor. These components are designed for applications requiring precise timing signals with low power consumption and small physical dimensions.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with different frequency suffixes if the frequency requirement changes. Cross-brand replacements must match the 1.8V supply, LVCMOS output, and 4-SMD package dimensions.