18QHTF21-39.852973-OE

Oscillators Overview

The 18QHTF21-39.852973-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 39.852973 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 3.3V and features an Enable/Disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 5.0mm x 3.2mm. This component is engineered for reliable timing applications requiring precise frequency stability within its specified operating temperature range.

Oscillators Feature Summary

• Provides stable clock signals via LVCMOS output interface
• Supports active enable and disable control functions
• Designed for low-profile surface-mount integration

Oscillators Applications

• General digital system clock generation
• Embedded controller timing references
• Communication module synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 3.3V supply voltage aligns with your system power rails. Ensure the 4-SMD package footprint matches your PCB layout constraints. Cross-reference the manufacturer's latest datasheet to confirm current production status and environmental compliance details prior to final procurement decisions.

Oscillators Selection Notes

Select this component when a precise 39.852973 MHz reference is required for LVCMOS-compatible circuits. Consider the 3.3V operating voltage and the need for software-controlled enable/disable functionality. Evaluate the physical space constraints against the 5.0x3.2mm package size. Ensure the operating temperature range meets the environmental conditions of the intended application environment.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options in a consistent small outline package format. The suffix OE typically denotes specific packaging or tape-and-reel configurations as defined by the manufacturer. This model represents a specific frequency variant within the broader family of quartz-based timing solutions.

Oscillators Replacement Considerations

Direct substitutes must match the 39.852973 MHz frequency, 3.3V supply, LVCMOS output, and 4-SMD package dimensions. Verify pin compatibility and electrical characteristics with alternative manufacturers' components. Ensure any replacement supports the same enable/disable control logic and meets identical thermal specifications.