18QHTF21-14.125-PD

Oscillators Overview

The 18QHTF21-14.125-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 14.125 MHz with an LVCMOS output logic level. The device supports a supply voltage of 1.8V and includes a standby (power down) function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• LVCMOS output interface
• Standby power control
• Surface mount construction

Oscillators Applications

• Digital signal processing systems
• Communication equipment timing
• Embedded controller clocks

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the system design specifications before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit's power rails. Ensure the 4-SMD package footprint matches the PCB layout constraints to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside precise timing signals. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the small form factor for space-constrained designs requiring reliable clock sources without excessive power consumption due to the standby capability.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options within a standardized 2.0x1.6mm package. The 'PD' suffix indicates the inclusion of a power-down feature, distinguishing it from continuous-operation variants in the same family.

Oscillators Replacement Considerations

Direct substitutes must match the 14.125 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Verify pin compatibility and electrical characteristics such as phase noise and jitter if available in official datasheets. Generic replacements may differ in operating temperature range or startup time.