18QHTF21-72.115-PD

Overview

The 18QHTF21-72.115-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 72.115 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby and power-down capabilities
• Features LVCMOS output logic compatibility
• Utilizes a small form-factor SMD package

Applications

• Portable electronic devices requiring low power consumption
• Communication systems utilizing standard clock signals
• Embedded control circuits needing precise timing
• Consumer electronics with space constraints

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 4-SMD no-lead package footprint matches your PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a standard XO with LVCMOS outputs is required for 1.8V systems. Consider the 2.0x1.6mm size constraint for dense layouts. Evaluate the need for power-down functionality to manage battery life. Compare against other frequencies in the 18QHTF21 series if different clock speeds are needed while maintaining the same package and electrical characteristics.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various standard frequencies within a consistent 4-SMD no-lead package. These components are designed for applications requiring reliable timing sources in low-profile electronic assemblies, providing a balance between performance and physical size constraints.

Replacement Considerations

Direct substitutes must match the 72.115 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar low-profile XO specifications to ensure functional equivalence without redesigning the host circuit.