18QHTF21-75.900-PD

Overview

The 18QHTF21-75.900-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 75.9 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a Standby (Power Down) control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports standard operation with LVCMOS output logic
• Includes standby capability for power management
• Utilizes surface-mount packaging for automated assembly

Applications

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

Procurement Notes

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

Selection Notes

Select this component when a low-profile, 1.8V LVCMOS oscillator is required for space-constrained designs. The inclusion of a standby pin allows for dynamic power reduction in battery-operated devices. Consider the operating temperature range and size limitations relative to other available frequencies within the same series to ensure optimal fit for the application.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequency options in a standardized 2.0x1.6mm SMD package. The series is designed for applications requiring precise timing signals with low power consumption. The 'PD' suffix typically indicates specific packaging or handling characteristics defined by the manufacturer.

Replacement Considerations

Direct substitutes must match the 75.9 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Verify equivalent electrical specifications such as phase noise and jitter if critical to the design. Cross-reference with other manufacturers offering similar form-factor oscillators to ensure compatibility.