090-44350-31

Overview

The Microsemi Corporation 090-44350-31 is a high-precision atomic clock oscillator operating at a frequency of 10 MHz. It utilizes a CMOS output type and requires a 5V supply voltage with a maximum current consumption of 2.8A. The device offers a frequency stability of 10 ppb and features a typical holdover time of 1.5 µs over temperature, compliant with SA.35m standards. Designed for robust performance, it operates within a temperature range of -10°C to 75°C. The component is housed in a standard OCXO pinout module package measuring 2.000 inches by 2.000 inches (50.80mm x 50.80mm) with a maximum height of 0.740 inches (18.80mm). It supports through-hole installation.

Feature Summary

• High-precision atomic clock functionality ensuring stable frequency generation
• Small form factor design compatible with standard OCXO pinouts
• Low power consumption characteristics for efficient operation
• Typical holdover capability of 1.5 µs over temperature ranges

Applications

• Telecommunications infrastructure requiring precise timing
• Navigation systems demanding high frequency stability
• Test and measurement equipment needing accurate reference clocks
• Military and aerospace applications utilizing ruggedized oscillators

Procurement Notes

This product is officially listed as obsolete by the manufacturer. Verification of availability should focus on surplus or secondary market channels rather than direct new production from Microsemi. Confirm RoHS compliance status and check for any specific environmental export classifications such as EAR99 before finalizing acquisition plans. Ensure that replacement components meet identical electrical specifications if this part is no longer obtainable.

Selection Notes

Select this component when a 10 MHz atomic reference with CMOS output is required for critical timing applications. Consider its 10 ppb stability and 1.5 µs holdover performance for environments where temperature variations occur. Verify that the 5V supply and 2.8A current draw align with system power budgets. The through-hole module format must fit the designated PCB layout constraints.

Part Context

The 090-44350-31 belongs to the SA.35m series of rubidium atomic clocks manufactured by Microsemi Corporation. This series is designed to provide superior frequency stability compared to standard crystal oscillators. The part represents a specialized solution for applications requiring long-term frequency accuracy and reliability under varying environmental conditions.

Replacement Considerations

As the 090-44350-31 is obsolete, verify equivalent parts from the same family or newer generations. Check for variants like the 090-44350-22 which may offer similar atomic clock functions but with different operational parameters. Ensure any substitute maintains the 10 MHz frequency, CMOS output, and compatible physical dimensions.