18QHTF21-13.5231-OE

Overview

The 18QHTF21-13.5231-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co. Ltd. It operates at a fixed frequency of 13.5231 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. A key functional characteristic is the inclusion of an Enable/Disable control pin, allowing for power management during inactive periods. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm, suitable for space-constrained surface-mount designs.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable functionality for power control
• Compact 4-SMD no-lead surface mount package

Applications

• General purpose clock signal generation
• Embedded system timing references
• Consumer electronics circuit boards

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Check for any specific reflow soldering profile recommendations provided in the official datasheet to ensure reliable assembly.

Selection Notes

Select this component when a precise 13.5231 MHz reference is required in a minimal footprint. The LVCMOS output is suitable for direct interfacing with standard digital logic families. The enable feature makes it appropriate for battery-powered devices where power conservation is critical. Consider the operating temperature range if the application involves extreme environmental conditions.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic, which specializes in quartz-based frequency control products. The manufacturer has decades of experience in producing crystals, oscillators, and filters. This series represents their standard XO offerings, characterized by small form factors and low voltage operation, catering to modern portable and compact electronic devices.

Replacement Considerations

Direct substitutes must match the 13.5231 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify equivalent electrical parameters such as phase noise and stability. Cross-reference with other manufacturers offering similar SMD oscillators with enable pins.