18QHTF21-18.000-PD

Oscillators Overview

The 18QHTF21-18.000-PD is an 18 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates with a standard LVCMOS output logic and requires a 1.8V supply voltage. The component features a Standby (Power Down) control function to manage power consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Supports Standby (Power Down) mode for energy efficiency
• Utilizes LVCMOS output logic for digital interface compatibility
• Compact 4-SMD No Lead surface mount package

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Digital signal processing circuits
• Communication equipment interfaces

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Ensure the 1.8V supply voltage aligns with the target system design. Confirm that the 4-SMD No Lead package footprint matches the PCB layout constraints. Check for any specific RoHS or environmental compliance certifications required for the application.

Oscillators Selection Notes

Select this component when a precise 18 MHz clock source is needed with low voltage operation. The integrated power-down feature makes it suitable for battery-operated systems. Consider the small form factor for space-constrained designs. Ensure the LVCMOS output level is compatible with the receiving logic inputs of the target circuit.

Oscillators Part Context

This part belongs to the QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and supply voltages. The 'PD' suffix indicates the inclusion of a Power Down pin. The 18QHTF21 variant specifically targets 1.8V applications within the 2.0x1.6mm package size.

Oscillators Replacement Considerations

Direct substitutes include other 18MHz 1.8V LVCMOS oscillators in 2.0x1.6mm packages with power-down functionality. Verify pinout compatibility and electrical specifications before substitution.