CTX33-4

Arrays, Signal Transformers Overview

The CTX33-4-R is an unshielded coupled inductor array from the OCTA-PAC series by Eaton Electronics. It features an amorphous metal core and surface-mount termination. Key electrical parameters include a parallel inductance of 33.12 µH and a series inductance of 132.5 µH, with a 20% tolerance. The component supports a maximum DC current of 1.8 A and has a maximum DC resistance of 72 mΩ. Physical dimensions are 11.43 mm x 11.43 mm x 6.35 mm, operating between -40°C and +85°C.

Arrays, Signal Transformers Feature Summary

• Dual-coil configuration utilizing amorphous metal core technology for efficient magnetic coupling.
• Unshielded design suitable for applications where external shielding is managed by the system layout.
• Surface-mount construction optimized for automated PCB assembly processes.

Arrays, Signal Transformers Applications

• DC-DC converter input filtering
• Power supply noise suppression circuits
• Signal conditioning in mixed-signal systems

Arrays, Signal Transformers Procurement Notes

Verify the specific suffix (e.g., -R) to confirm packaging type such as reel or cut tape. Confirm RoHS compliance status through official documentation. Ensure the ordered part number matches the required inductance and current ratings for the target circuit design.

Arrays, Signal Transformers Selection Notes

Select this component when a dual-coil coupled inductor with high current handling is required. The 1.8 A rating and low DCR make it suitable for power stages. Consider the unshielded nature for potential EMI implications in dense layouts.

Arrays, Signal Transformers Part Context

This component belongs to the CTX series of coupled inductors manufactured by Eaton Electronics. The OCTA-PAC trademark indicates its classification within their specific line of magnetics designed for compact power electronics applications.

Arrays, Signal Transformers Replacement Considerations

Consult Eaton's official cross-reference tools for verified substitutes. Generic equivalents may not match the amorphous core characteristics or precise coupling coefficients required for optimal performance.

Arrays, Signal Transformers FAQ

What is the difference between the parallel and series inductance values?

The parallel inductance (33.12 µH) applies when coils are connected in parallel, while the series inductance (132.5 µH) applies when connected in series, reflecting the magnetic coupling effect.

Is the CTX33-4-R shielded?

No, the datasheet specifies this component as an unshielded inductor array.