18QHTF21-91.860-OE

Overview

The 18QHTF21-91.860-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 91.86 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an Enable/Disable control pin for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. The component complies with RoHS standards.

Feature Summary

• Integrates LVCMOS output logic for digital signal interfacing
• Features an enable/disable control pin for active power management
• Utilizes a leadless surface-mount package for space-constrained designs

Applications

• Digital clock generation in embedded systems
• Timing reference for communication interfaces
• Power management circuits requiring precise timing

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the system design specifications before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout to prevent assembly issues. Check for any specific handling instructions related to the leadless package type during manufacturing.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a standard LVCMOS interface. The small 2.0x1.6 mm form factor makes it suitable for dense board layouts. Consider the enable/disable functionality if dynamic power saving is necessary. Verify that the 91.86 MHz frequency meets the exact timing needs of the application without requiring external dividers or multipliers.

Part Context

This part belongs to the QHTF series of crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options within similar compact packages. The 'OE' suffix typically denotes the presence of an enable pin, distinguishing it from standard continuous-output variants. This family targets applications requiring reliable timing sources in portable and industrial electronics.

Replacement Considerations

Direct substitutes include other 18QHTF21 series parts with identical pinouts and electrical characteristics but different frequencies, such as the 18QHTF21-86.9675-OE or 18QHTF21-37.888-OE. Cross-referencing with other manufacturers requires verifying the LVCMOS output levels and package dimensions to ensure mechanical and electrical compatibility.