B82801C0565A100

Current Sense Transformers Overview

The B82801C0565A100 is a surface mount current sense transformer manufactured by EPCOS, now part of TDK Electronics. It features an EF12.6 core geometry and gull-wing termination style. The component has an inductance of 5.6 mH and a turns ratio of 1:100. Its physical dimensions are 14.22 mm in length, 13.46 mm in width, with a maximum seated height of 10.00 mm. The primary winding resistance is 0.28 mOhm, while the secondary winding resistance is 1 Ohm. It operates within a frequency range of 50 kHz to 500 kHz.

Current Sense Transformers Feature Summary

• Surface mount construction utilizing gull-wing terminations for automated PCB assembly
• Integrated ferrite core design providing magnetic flux containment for current sensing
• High isolation capability between primary and secondary windings for safety

Current Sense Transformers Applications

• Current monitoring in switch-mode power supplies
• Overcurrent protection circuits in industrial equipment
• Feedback control loops in AC/DC converters

Current Sense Transformers Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest datasheet to ensure compatibility with required insulation standards and temperature ratings. Confirm that the package dimensions align with the target PCB footprint. Check for any recent product lifecycle notifications or obsolescence warnings from TDK Electronics before finalizing procurement plans.

Current Sense Transformers Selection Notes

Select this component when a high-precision current measurement is required in a compact surface mount form factor. The 1:100 turns ratio suits applications needing significant signal amplification from low primary currents. Ensure the operating frequency remains within the specified 50 kHz to 500 kHz range to maintain accuracy and avoid core saturation issues during peak load conditions.

Current Sense Transformers Part Context

This component belongs to the B82801C series of SMT current sense transformers produced by EPCOS/TDK. The series utilizes EE12.6 or EF12.6 core geometries to provide reliable magnetic coupling for non-intrusive current measurement. These transformers are designed to replace bulky through-hole alternatives in modern electronics manufacturing processes.

Current Sense Transformers Replacement Considerations

Direct substitutes include other B82801C variants with matching inductance and ratio, such as B82801C0145A050 or B82801C1265A150, provided their electrical parameters fit the circuit requirements. Cross-reference with Pulse A Technitrol Comp models like P822X only if mechanical and electrical specifications are fully compatible.

Current Sense Transformers FAQ

What is the maximum operating frequency for this transformer?

The B82801C0565A100 is rated for operation between 50 kHz and 500 kHz.

Does the component have a built-in resistor?

No, it is a passive transformer with defined primary and secondary winding resistances but no integrated active components.