18QHTF21-40.925-PD

Oscillators Overview

The 18QHTF21-40.925-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 40.925 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 2.0x1.6 mm.

Oscillators Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• Digital signal processing systems requiring precise clock timing
• Communication equipment utilizing standard frequency references
• Embedded control units needing low-power standby modes

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power rails. Ensure the PCB footprint matches the 2.0x1.6 mm SMD package dimensions to prevent assembly errors during manufacturing.

Oscillators Selection Notes

Select this component when a stable 40.925 MHz reference is required in space-constrained designs. The LVCMOS output is suitable for direct interfacing with digital logic families. Consider the power-down feature if battery life or thermal management is critical. Validate compatibility with the host controller's input thresholds.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various standard frequencies within a small form factor. The 'PD' suffix indicates the inclusion of power-down capability. These components are designed for applications demanding reliable timing signals in minimal board space.

Oscillators Replacement Considerations

Direct substitutes must match the 40.925 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical specifications such as jitter and phase noise. Cross-reference with other manufacturers offering equivalent XO specifications in identical packages.