18QHTF21-7.3738-OE

Overview

The 18QHTF21-7.3738-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 7.3738 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package designed for surface-mount applications.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable control functionality
• Surface-mount 4-SMD no lead package design

Applications

• General clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target system power rails. Ensure the 4-SMD footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS signaling standards. The enable/disable feature allows for power management integration within the design. Consider the small form factor of the 4-SMD package for space-constrained layouts requiring precise timing references at 7.3738 MHz.

Part Context

This model belongs to the 18QHTF21 series of standard oscillators from Mercury Electronics. The series typically offers various frequency options within a consistent physical footprint. The -OE suffix often denotes specific packaging or tape-and-reel configurations, though exact details require datasheet confirmation. This part represents a standard solution for basic clocking needs.

Replacement Considerations

Direct substitutes must match the 7.3738 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Verify pinout compatibility and electrical characteristics such as rise/fall times and duty cycle. Cross-reference with other manufacturers offering similar low-profile oscillators if availability is an issue.