B78419A2289A003

Current Sense Transformers Overview

The EPCOS B78419A2289A003 is a current sense transformer designed for surface mount applications. It features a 1:70 turns ratio and is RoHS3 compliant. The component utilizes gull wing termination style for PCB integration. Physical dimensions are specified as 12.80mm length by 13.60mm width, with a maximum seated height of 14.40mm.

Current Sense Transformers Feature Summary

• Surface mount construction for automated assembly
• High isolation current sensing capability
• RoHS3 compliant manufacturing

Current Sense Transformers Applications

• Current monitoring in power supply circuits
• Isolated feedback loops in switching converters
• Protection circuitry in industrial electronics

Current Sense Transformers Procurement Notes

Verify the specific ordering code against official TDK Electronics documentation to ensure correct variant selection. Confirm that the 1:70 ratio matches the system design requirements. Check for RoHS3 compliance status if required by regional regulations. Ensure surface mount footprint compatibility with the target PCB layout before procurement.

Current Sense Transformers Selection Notes

Select this component when isolated current sensing is required in a compact surface mount form factor. The 1:70 ratio determines the secondary current output relative to the primary conductor. Verify that the physical dimensions fit within the available board space constraints. Consider the thermal performance and mounting stability provided by the gull wing terminations during operation.

Current Sense Transformers Part Context

This component belongs to the EPCOS (now TDK Electronics) transformer portfolio, specifically categorized under current sense transformers. These devices are engineered for precise signal isolation and transfer in electronic systems. The product line supports various industrial and consumer applications requiring reliable current measurement without direct electrical connection.

Current Sense Transformers Replacement Considerations

Consult official TDK Electronics substitution guides for verified equivalent part numbers. Do not assume functional interchangeability with generic current transformers based solely on similar ratios or package types.