18QHTF21-123.930-OE

Overview

The 18QHTF21-123.930-OE is a 123.93 MHz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a supply voltage of 1.8V and utilizes LVCMOS output logic. The component features an Enable/Disable control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. The device is compliant with RoHS standards and has an MSL rating of 1.

Feature Summary

• Supports active enable/disable functionality for system power optimization
• Utilizes low-voltage LVCMOS output interface for digital compatibility
• Designed for surface-mount assembly in space-constrained applications

Applications

• High-speed data communication interfaces requiring precise clocking
• Embedded systems utilizing low-voltage microcontrollers
• Portable electronic devices demanding minimal power consumption

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 2.0x1.6 mm footprint matches your PCB layout constraints. Check for any specific environmental certifications required for your target market.

Selection Notes

Select this model when a 123.93 MHz frequency is strictly required alongside a 1.8V operating voltage. Consider the small 4-SMD package size if board real estate is limited. Evaluate the need for an enable pin to manage standby power states. Compare performance against other LVCMOS oscillators if higher frequencies or different voltages are needed.

Part Context

This part belongs to the QHTF series of surface-mount crystal oscillators from Mercury Electronics. The series typically offers standard frequencies with low phase noise characteristics. The 'OE' suffix indicates the inclusion of an output enable feature, distinguishing it from basic continuous-output variants within the same form factor family.

Replacement Considerations

Direct replacements must match the 123.93 MHz frequency, 1.8V supply, and LVCMOS output type. Verify that substitute components support the same 2.0x1.6 mm package dimensions. Ensure equivalent electrical parameters such as phase noise and jitter are met for signal integrity.