CS21-F2020CQ10-28.63636M-TR

Crystals Overview

The CS21-F2020CQ10-28.63636M-TR is a miniature ceramic surface-mount crystal oscillator manufactured by Transko Electronics, Inc. It operates at a fundamental frequency of 28.63636 MHz with a frequency stability and tolerance of ±20 ppm. The component features a load capacitance of 10 pF and an equivalent series resistance (ESR) of 60 Ohms. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0 x 1.6 x 0.46 mm, designed for space-constrained electronic applications requiring precise timing signals.

Crystals Feature Summary

• Ultra-miniature ceramic construction for high-density PCB layouts
• Fundamental mode operation for stable frequency generation
• Surface-mount design compatible with automated assembly processes

Crystals Applications

• Portable wireless communication devices
• Beacon and rescue system timing circuits
• Mobile test equipment clock sources

Crystals Procurement Notes

Verify the specific suffix -TR indicates tape-and-reel packaging configuration when reviewing official datasheets. Confirm that the ±20 ppm stability meets your system's jitter and phase noise requirements. Ensure the 10 pF load capacitance matches your circuit design to maintain accurate frequency output. Check for any RoHS or REACH compliance statements in the manufacturer's documentation prior to ordering.

Crystals Selection Notes

Select this component when a small form factor is critical alongside moderate frequency stability. The 2.0x1.6mm package size allows for integration into tight spaces where larger crystals cannot fit. Consider the 60 Ohm ESR value to ensure proper oscillation startup conditions within your chosen microcontroller or oscillator circuit topology.

Crystals Part Context

This part belongs to Transko's CS21 series of ultra-miniature ceramic SMD crystals. The series is characterized by its small footprint and reliability for consumer electronics. It serves as a basic timing element rather than a temperature-compensated oscillator, distinguishing it from more complex TCXO or OCXO offerings in the manufacturer's portfolio.

Crystals Replacement Considerations

Transko offers the CS63B as a drop-in replacement for discontinued Citizen Finetech CS10 models. For general replacements, verify pin compatibility and electrical parameters against the original design specifications before substitution.