18QHTF21-75.650-PD

Overview

The 18QHTF21-75.650-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 75.65 MHz and utilizes LVCMOS output logic. The device is designed for low-power applications, featuring a supply voltage of 1.8V and a standby power-down mode. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby power-down functionality to reduce consumption
• Utilizes a small form factor surface-mount package

Applications

• General clock generation for embedded systems
• Timing reference for digital signal processing circuits
• Clock source for communication modules requiring 75.65 MHz

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet.

Selection Notes

Select this component when a precise 75.65 MHz clock signal is required with low power consumption. The LVCMOS output is suitable for standard digital logic families. Consider the 1.8V supply requirement and the compact 2.0x1.6mm package size for space-constrained designs. Verify compatibility with the target application's thermal and electrical specifications.

Part Context

This part belongs to the Mercury Electronics 18QHTF series of surface-mount crystal oscillators. The series offers various frequencies and supply voltages. The 'PD' suffix typically indicates a power-down feature. Mercury Electronics is a specialized manufacturer of frequency control products, including quartz crystals and oscillators, with a focus on Taiwan-based production capabilities.

Replacement Considerations

Direct replacements must match the 75.65 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Cross-reference with other manufacturers offering similar XO specifications. Ensure pinout compatibility if substituting with different brands.