18QHTF21-13.5815-PD

Overview

The 18QHTF21-13.5815-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 13.5815 MHz and utilizes LVCMOS output levels. The device supports a supply voltage of 1.8V and includes a power-down feature for standby mode. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Feature Summary

• LVCMOS output interface
• Power-down capability
• Compact surface-mount package

Applications

• General electronic timing circuits
• Embedded systems clock sources
• Consumer electronics devices

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 2.0x1.6mm 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 13.5815 MHz clock signal is required in space-constrained applications. The LVCMOS output is suitable for direct interfacing with digital logic families operating at 1.8V. Consider the power-down feature if energy efficiency during idle periods is a priority. Verify that the no-lead package type meets your manufacturing capabilities.

Part Context

This part belongs to the 18QHTF series of crystal oscillators from Mercury Electronics. The series typically offers various frequencies and package sizes. Mercury Electronics is a established supplier of frequency control products, including quartz crystals and oscillators, with a history dating back to 1973 in Taiwan.

Replacement Considerations

Direct substitutes may include other 13.5815 MHz LVCMOS oscillators in a 2.0x1.6mm SMD package with 1.8V operation. Ensure compatibility regarding pinout, output waveform, and electrical specifications. Cross-reference with similar models from Mercury Electronics or other manufacturers offering identical form factors and performance characteristics.