18QHTF21-124.990625-PD

Oscillators Overview

The 18QHTF21-124.990625-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 124.990625 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down mode capability. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby and power-down functionality
• Utilizes LVCMOS output logic
• Features a small form factor SMD package

Oscillators Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded system timing references

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required voltage levels and output types. Confirm that the 1.8V supply requirement aligns with the target system design. Check for availability of the PD (Power Down) variant if low-power management is necessary for the application.

Oscillators Selection Notes

Select this component when a precise 124.990625 MHz reference is required in space-constrained designs. Ensure the host circuit supports 1.8V logic levels. Consider the need for power-down control signals if energy efficiency during idle states is a priority for the overall system architecture.

Oscillators Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltages. The '18' prefix typically indicates the 1.8V supply variant, while 'PD' denotes the inclusion of a power-down pin for enhanced power management capabilities compared to standard versions.

Oscillators Replacement Considerations

Direct substitutes include other 124.990625 MHz LVCMOS oscillators in 2.0x1.6mm packages with 1.8V operation. Verify pinout compatibility and electrical specifications before swapping. Alternative Mercury parts may require checking specific suffix differences for identical performance.