435F122XYCET

Crystals Overview

The CTS-Frequency Controls 435F122XYCET is a surface-mount crystal component designed for frequency control applications. It operates at a fundamental frequency of 12.288 MHz and utilizes a 20 pF load capacitance with a 60 Ohm ESR. The device features a ±15 ppm frequency tolerance and ±25 ppm stability over its operating temperature range of -20°C to +70°C. Housed in a compact 5.0mm x 3.2mm 2-pad SMD package, it serves as a passive resonator element requiring external oscillator circuitry.

Crystals Feature Summary

• Provides precise frequency generation at 12.288 MHz
• Compact 2-pad surface mount footprint for space-constrained designs
• Operates within industrial temperature limits

Crystals Applications

• Clock signal generation for microprocessors
• Timing references for communication interfaces
• Frequency synthesis circuits

Crystals Procurement Notes

Verify the specific load capacitance (20pF) and ESR (60 Ohms) requirements against the target oscillator circuit design to ensure accurate frequency performance. Confirm that the PCB layout accommodates the 5.0mm x 3.2mm 2-pad SMD package dimensions. Ensure the application environment remains within the specified -20°C to +70°C operating range to maintain the stated ±25 ppm stability.

Crystals Selection Notes

Select this component when a passive crystal resonator is required rather than an active oscillator. It is suitable for designs where the host system provides the necessary oscillation circuitry. Compare the ±15 ppm tolerance against system jitter requirements. Consider the 2-pad SMD form factor for automated assembly compatibility and board space optimization compared to larger through-hole alternatives.

Crystals Part Context

This part belongs to the CTS 435 series of surface-mount crystals. It is distinct from active VCXO or HCMOS oscillator models like the 353TB5A122T, which include internal circuitry and output drivers. As a passive component, it differs from other CTS offerings by lacking power supply pins and enable functions, relying entirely on external circuit feedback for operation.

Crystals Replacement Considerations

Direct replacements must match the 12.288 MHz frequency, 20pF load capacitance, and 60 Ohm ESR specifications. Verify that substitute components support the same 5.0mm x 3.2mm 2-pad SMD package and meet the -20°C to +70°C temperature range. Cross-reference manufacturer datasheets to confirm equivalent frequency tolerance and stability ratings.