ISM97-3251BH-20.000MHZ

Oscillators Overview

The ISM97-3251BH-20.000MHZ is a surface-mount ceramic package clock oscillator manufactured by ILSI America. It operates at a nominal frequency of 20 MHz with a supply voltage of 3.3 V and features an enable/disable control function. The component utilizes CMOS output logic levels and is housed in a compact 4-pin SMD package measuring 3.2 mm x 2.5 mm x 1.2 mm. Designed for lead-free processing, it supports applications requiring stable timing signals.

Oscillators Feature Summary

• Low jitter performance without PLL-based architecture
• CMOS/TTL compatible logic levels
• Enable/Disable functionality via input voltage threshold

Oscillators Applications

• Fibre Channel Server & Storage systems
• Sonet/SDH network equipment
• 802.11/WiFi wireless modules
• T1/E1 and T3/E3 system clocks

Oscillators Procurement Notes

Verify the specific frequency tolerance and stability specifications against the official ILSI datasheet for the exact suffix variant. Confirm that the 3.3V supply requirement aligns with your target circuit design. Ensure the ceramic package dimensions match your PCB footprint constraints. Check RoHS compliance status if required by your manufacturing standards.

Oscillators Selection Notes

Select this component when a low-profile, lead-free compliant oscillator is needed for high-frequency digital interfaces. The non-PLL design offers specific jitter characteristics suitable for sensitive data transmission lines. Consider the enable pin requirements if power management during idle states is necessary for the application.

Oscillators Part Context

This part belongs to the ISM97 series of ceramic package oscillators from ILSI America. The series provides various frequency options within a standardized small outline package. It is designed to replace older through-hole or larger surface-mount oscillators in space-constrained consumer and industrial electronics.

Oscillators Replacement Considerations

Direct substitutes may include other ISM97 series variants with matching frequencies. Verify pinout compatibility and electrical parameters before swapping. Generic replacements must match the 3.2x2.5mm footprint and 3.3V operation.