CTX110655-R

Overview

The CTX110655-R is a surface-mount Cold Cathode Fluorescent Lamp (CCFL) inverter transformer manufactured by Eaton Electronics Division. It features a 1:67 turns ratio and is rated for 2.5W power handling with a 20V output at 5mA. The component utilizes an SOT-23 case package and contains ten terminals for circuit integration. Designed specifically for backlighting applications, this transformer supports high-frequency inversion required for CCFL operation.

Feature Summary

• Specialized design for driving cold cathode fluorescent lamps
• Surface mount construction for automated assembly
• Integrated magnetic core structure for compact form factor

Applications

• LCD panel backlighting systems
• Portable electronic display units
• Industrial control panel illumination

Procurement Notes

Verify the specific manufacturing lot date code upon receipt to ensure component freshness, as storage conditions can affect solderability. Confirm that the received part matches the exact Eaton designation CTX110655-R, noting that similar suffixes may indicate different electrical characteristics or packaging variations. Inspect the SOT-23 package for physical damage before reflow soldering.

Selection Notes

Select this component when designing circuits requiring a dedicated step-up transformer for CCFL backlights with a 20V output requirement. Ensure the PCB layout accommodates the SOT-23 footprint and ten-terminal configuration. Consider thermal management capabilities within the enclosure, as the 2.5W rating defines the maximum continuous power dissipation limits for the magnetic core.

Part Context

This transformer belongs to the CTX series of specialty transformers from Eaton Electronics Division, formerly associated with Cooper Bussmann. The series is engineered for high-voltage generation in lighting applications. The CTX110655-R represents a specific variant optimized for low-power CCFL inverters, distinguishing it from general-purpose power transformers through its specific turns ratio and voltage ratings.

Replacement Considerations

CTX110657-R provides a similar 2.5W CCFL transformer function but differs in output voltage specifications, requiring circuit adjustment if used as a substitute.