DKIH-3252-40D5

Common Mode Chokes Overview

The Schurter DKIH-3252-40D5 is a single-phase common mode choke designed for PCB mounting with radial termination. It features a current compensated noise suppression architecture utilizing a nanocrystalline toroidal core. The component supports a maximum DC current of 40 A per channel with an inductance of 450 µH (±30%, +50%). Key electrical parameters include a maximum DC resistance of 1.5 mΩ, a self-resonant frequency of 0.4 MHz, and an operating voltage of 300 V AC. It operates within a temperature range of -40°C to +100°C and has physical dimensions of 53 mm diameter by 31 mm height.

Common Mode Chokes Feature Summary

• Current compensated design for effective noise suppression in high-current applications
• Nanocrystalline toroidal core construction for stable magnetic performance
• Radial through-hole termination for direct PCB integration

Common Mode Chokes Applications

• Single-phase power supply input filtering
• Industrial equipment EMI suppression
• High-current DC/AC line noise reduction

Common Mode Chokes Procurement Notes

Verify the specific part number DKIH-3252-40D5 against official Schurter documentation to confirm compatibility with your circuit requirements. Ensure that the 40 A current rating and 450 µH inductance meet your system specifications. Check for RoHS compliance status as indicated in the manufacturer's datasheet before finalizing procurement decisions.

Common Mode Chokes Selection Notes

Select this component when high current handling capability is required alongside significant common mode noise attenuation. The 450 µH inductance provides substantial impedance at lower frequencies compared to standard chokes. Consider the unshielded nature and radial footprint during PCB layout planning to ensure adequate clearance and mechanical stability.

Common Mode Chokes Part Context

This component belongs to the Schurter DKIH series, which specializes in high-current common mode chokes. These components are engineered for robust performance in demanding industrial environments. The DKIH series typically utilizes nanocrystalline materials to achieve high saturation currents while maintaining low insertion loss characteristics.

Common Mode Chokes Replacement Considerations

Direct substitutes may include other Schurter DKIH models with similar current ratings, such as DKIH-3252-50D2 or DKIH-3252-40D5 equivalents from other manufacturers offering comparable 40 A ratings and 450 µH inductance. Verify pinout and dimensional compatibility before substitution.