18QHTF21-75.390-PD

Overview

The 18QHTF21-75.390-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 75.39 MHz with LVCMOS output logic and a supply voltage of 1.8V. The device features a Standby (Power Down) function and is housed in a 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports Low Voltage CMOS (LVCMOS) output logic for digital interfacing
• Includes standby capability to reduce power consumption during inactive periods
• Utilizes a compact surface-mount package design suitable for space-constrained applications

Applications

• General clock signal generation in electronic circuits
• Timing reference for low-voltage digital systems
• Embedded devices requiring precise frequency control

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct configuration. Confirm that the required frequency tolerance and load capacitance match the target circuit design before procurement. Cross-reference the package outline drawing to validate mechanical fit within the assembly constraints.

Selection Notes

Select this component when a 1.8V supply and LVCMOS interface are required. Ensure the operating temperature range meets the environmental specifications of the end application. Verify that the 4-SMD footprint aligns with the PCB layout guidelines provided in the datasheet.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The PD suffix typically indicates a specific pinout or functional variant such as power-down support, distinct from other suffixes like OE which may imply different operational modes.

Replacement Considerations

Consult the manufacturer's cross-reference list for verified substitutes. Ensure any replacement matches the 75.39 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions exactly.