ISM95-1251AH-50.000MHZ

Oscillators Overview

The ISM95-1251AH-50.000MHZ is a surface-mount ceramic package clock oscillator manufactured by ILSI America. It operates at a nominal frequency of 50 MHz with HCMOS/TTL output logic levels compatible with standard digital interfaces. The device functions on a single 1.8V supply voltage and includes an enable/disable control pin for power management. It utilizes a non-PLL based architecture to deliver low jitter performance, suitable for high-speed data transmission applications. The component is housed in a compact 4-SMD, no-lead package measuring 2.0 mm x 2.5 mm, designed for automated assembly processes.

Oscillators Feature Summary

• Non-PLL based architecture for low jitter performance
• HCMOS/TTL compatible output logic levels
• Integrated enable/disable function for power control
• Lead-free processing compatibility

Oscillators Applications

• Fibre Channel server and storage systems
• SONET/SDH network infrastructure
• 802.11/WiFi communication modules
• T1/E1 and T3/E3 system clocks

Oscillators Procurement Notes

Verify the specific suffix codes against the official ILSI part number guide to ensure correct frequency stability, operating temperature range, and packaging options. Confirm that the requested variant matches the required 1.8V supply specification and enable/disable functionality. Cross-reference the datasheet revision date to ensure compliance with current lead-free processing standards and RoHS directives before finalizing procurement orders.

Oscillators Selection Notes

Select this oscillator when a stable 50 MHz reference is required for CMOS/TTL loads in space-constrained designs. Ensure the application environment falls within the specified -40°C to 85°C operating temperature range. Verify that the system power budget supports the 1.8V supply requirement and that the enable pin can be properly controlled by the host logic to manage standby currents effectively during idle periods.

Oscillators Part Context

This component belongs to the ISM95 series of surface-mount oscillators from ILSI America. The series is characterized by its small ceramic footprint and robust performance in telecommunications and computing environments. The ISM95 line provides various frequency options and voltage levels, maintaining consistent low-jitter specifications across the family to support precise timing requirements in modern electronic systems.

Oscillators Replacement Considerations

Direct substitutes within the same series include ISM95-3251AH-25.000MHZ for different frequencies or ISM95-1251BH variants for alternative voltage levels. Always verify pinout compatibility and electrical parameters before swapping components. Generic replacements may not match the specific jitter profiles or enable logic thresholds defined by the original ILSI design.