ISM92-3251BH-25.000 MHZ

Oscillators Overview

The ISM92-3251BH-25.000 MHZ is a surface-mount ceramic package oscillator manufactured by ILSI America, designed for high-frequency clock generation applications. It operates at a nominal frequency of 25 MHz with a specified frequency stability of 50 ppm. The device utilizes HCMOS and TTL compatible logic levels, ensuring broad interoperability within digital systems. It features a standard enable/disable control function to manage power consumption during inactive periods. The component is housed in a compact 4-SMD, no-lead package measuring 5.0 mm x 3.2 mm x 1.6 mm, suitable for automated assembly processes.

Oscillators Feature Summary

• Low jitter, non-PLL based output performance
• CMOS/TTL compatible logic levels
• Enable/Disable functionality for power management

Oscillators Applications

• Fibre Channel Server & Storage
• Sonet / SDH Systems
• 802.11 / Wifi Networks
• T1/E1, T3/E3 System Clocks

Oscillators Procurement Notes

Verify the specific suffix 'BH' against the manufacturer's current part number guide to confirm voltage and temperature range specifications. Ensure the ordering documentation explicitly references the 25.000 MHz frequency and 50 ppm stability. Confirm lead-free processing compliance if required by environmental standards. Cross-reference the package dimensions (5.0mm x 3.2mm) with PCB footprint requirements prior to procurement.

Oscillators Selection Notes

Select this component when a stable 25 MHz reference is required for serial communication or networking interfaces. The HCMOS/TTL output compatibility allows direct interfacing with various logic families without additional level shifting. Consider the enable/disable feature for battery-powered or power-sensitive designs. Verify that the 50 ppm stability meets the timing tolerance requirements of the target application protocol.

Oscillators Part Context

This oscillator belongs to the ISM92 series from ILSI America, which specializes in ceramic package SMD oscillators. The series offers low jitter performance without PLL circuitry, distinguishing it from phase-locked loop variants. The ISM92 family supports multiple frequencies and voltage options, providing flexibility for diverse embedded system clocking needs while maintaining a consistent physical form factor.

Oscillators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.