18QHTF21-38.860-PD

Oscillators Overview

The 18QHTF21-38.860-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 38.860 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a Standby (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.

Oscillators Feature Summary

• Supports Standby (Power Down) mode for power management
• Utilizes LVCMOS output logic interface
• Compact 4-SMD No Lead surface mount package

Oscillators Applications

• General purpose clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to guarantee proper mechanical fit and electrical connectivity during assembly.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a precise 38.860 MHz reference. The choice is driven by the need for LVCMOS compatibility and the physical constraint of a small 4-pin SMD form factor. Consider the standby feature if power efficiency during idle states is a critical design parameter for the electronic system.

Oscillators Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series is characterized by small footprints and low voltage operation. The 'PD' suffix indicates the inclusion of a power-down control pin, distinguishing it from continuous-output variants within the same family.

Oscillators Replacement Considerations

Direct substitutes must match the 38.860 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify that alternative manufacturers provide equivalent phase noise and jitter specifications to ensure signal integrity is maintained in the application.