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EPCOS / TDK B82725S2xA0 SurfIND High-Current Chokes

EPCOS/TDK B82725S2xA0 SurfIND SMD High-Current Chokes are current-compensated ring core double devices. These chokes can filter common-mode noise from 24A to 36A current range at 70°C temperature. The SurfIND SMD high-current chokes feature up to 1% stray inductance, 120μH to 820μH nominal inductance range, and 0.78mΩ to 2.21mΩ resistance range. These chokes' rated inductance drops by less than 10% at rated current with DC magnetic bias at 20°C. The SurfIND chokes' design complies with IEC/EN 60938-2. These chokes are ideal for applications with voltages up to 250VAC. The SurfIND SMD high-current chokes come in a 40mm x 38mm compact footprint. These chokes are used to suppress common-mode interferences, PCB assemblies for the reflow-only soldering process, and switch-mode power conversion.

Features

  • Low profile with defined height dimension
  • High-rated currents at high ambient temperatures
  • Complies with IEC/EN 60938-2
  • Self-leaded SMD terminals suitable for reflow soldering
  • 40mm x 38mm compact footprint
  • Heights of 20.7mm for A types and 22.3mm for B types 
  • Self-leading SMD leads ensure easy reflow soldering to PCBs
  • Ferrite core with epoxy coating and plastic base plate (UL 94V-0)
  • Approximately 0.6% to 1% stray inductance for differential-mode noise suppression

Applications

  • Suppression of common-mode interferences
  • Switch-mode power conversion
  • PCB assemblies for reflow-only soldering process

Mechanical Diagram

Mechanical Drawing - EPCOS / TDK B82725S2xA0 SurfIND High-Current Chokes
Published: 2024-09-13 | Updated: 2025-01-19