B82801A1 Series Current Sense Transformers

EPCOS/TDK's B82801A1 series current sense transformers reliability is ensured by highly automated production using laser welding technology

Image of EPCOS/TDK's B82801A1 Series Current Sense TransformersTDK Corporation presents a series of compact EPCOS SMT current sense transformers. They are designed for measuring currents of up to 7 A at frequencies between 50 kHz and 1 MHz. The B82801A1 series comprises nine types that offer transformation ratios from 1:20 to 1:150 between the primary and secondary winding. The maximum DC resistance of the primary winding for all types is only 2.5 mΩ. Excellent reproducibility and reliability are ensured by highly automated production using laser welding technology.

The compact design of these components is particularly noteworthy: The footprint is only 4.5 mm x 4.85 mm and the height is 3.5 mm. Thanks to the insulating coating of the ferrite cores, a particularly space-saving installation on tightly populated boards is possible. The test voltage of the windings is 500 V.

Features
  • Maximum measuring range of 7 A
  • Compact dimensions of only 4.5 mm x 4.85 mm x 3.5 mm (L x W x H)
Applications
  • Overload detection and detection of load shedding in switch mode power supplies

B82801A1 Series Current Sense Transformers

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
CURR SENSE XFMR 1:100 SMDB82801A1824A100CURR SENSE XFMR 1:100 SMD12878 - ImmediateView Details
CURR SENSE XFMR 1:20 SMDB82801A1333A020CURR SENSE XFMR 1:20 SMD1230 - ImmediateView Details
EE4.2 SMD TRANSFORMER_P301765B82801A1134A040EE4.2 SMD TRANSFORMER_P301765593 - ImmediateView Details
EE4.2 SMD TRANSFORMER_P301767B82801A1304A060EE4.2 SMD TRANSFORMER_P301767593 - ImmediateView Details
CURR SENSE XFMR 1:30 SMDB82801A1743A030CURR SENSE XFMR 1:30 SMD572 - ImmediateView Details
Published: 2020-05-14