18QHTF21-73.14285-PD

Overview

The 18QHTF21-73.14285-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 73.14285 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and supports standby functionality via power down control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Provides stable clock signals at 73.14285 MHz using LVCMOS output interface
• Operates on a single 1.8V power supply for low voltage applications
• Includes standby capability through power down control mechanism

Applications

• General purpose clock generation in electronic circuits
• Embedded systems requiring precise timing references
• Communication modules utilizing standard LVCMOS interfaces

Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your circuit design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific environmental operating temperature ranges required for your application environment.

Selection Notes

Select this component when a 73.14285 MHz clock signal is specifically required. The 1.8V operating voltage makes it suitable for modern low-power digital designs. The small 2.0x1.6mm package is ideal for space-constrained boards. Consider the LVCMOS output compatibility with your receiving logic gates or microcontroller inputs to ensure signal integrity without additional buffering.

Part Context

This part belongs to the QHTF series of surface mount crystal oscillators from Mercury Electronics. These devices are designed for high reliability and stability in various commercial and industrial applications. The series offers multiple frequency options within a standardized small form factor, facilitating easy integration into diverse electronic products.

Replacement Considerations

Direct substitutes include other 73.14285 MHz LVCMOS oscillators with identical 1.8V operation and 4-SMD no-lead packaging. Verify pinout compatibility and electrical characteristics such as rise/fall times and duty cycle before substitution.