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TDK Releases Compact Dual Inductors with High Saturation Current

30.4.2020
Reading Time: 2 mins read
A A

TDK Corporation has extended its range of dual inductors to include the new EPCOS series B82477D6*. The seven series types cover an inductance range from 2 x 3.9 µH to 2 x 47 µH and are designed for maximum rated currents from 2.83 A to 7.05 A.

A special feature of the inductors, which are certified according to AEC-Q200 and compatible with RoHS, are the high saturation currents of up to 16.1 A. The magnetically shielded inductors have dimensions of just 12.5 x 12.5 x 10.5 mm3 and are designed for a wide temperature range of -55°C to +150 °C. Depending on the type, the inductors offer very high coupling factors of the two windings from 97 to 99 per cent.

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The fields of application of dual inductors are diverse: Indeed, they can be used as coupled inductors in SEPIC (Single-Ended Primary Inductance Converter) or 1:1 transformers in flyback topologies. A further application involves use as a common-mode inductor in power supply lines. The isolation voltage between the two windings is >500 V.

Main fields of application

  • Common-mode inductors in power supply lines
  • DC/DC converters in SEPIC topology
  • Flyback converters

Main features and benefits

  • High saturation currents of up to 16.1 A
  • Low dimensions of just 12.5 x 12.5 x 10.5 mm3
  • Wide temperature range of -55°C to +150°C
  • High coupling factor of up to 99 per cent

Characteristics

Ordering code Inductance
L1, L2 [µH]
Max. rated 
current [A]
Saturation 
current [A]
DC resistance
L1, L2 [mΩ]
B82477D6392M6033.97.0516.113.9
B82477D6682M6036.86.4011.817.0
B82477D6103M603105.659.922.5
B82477D6153M603154.928.729.6
B82477D6223M603223.857.245.0
B82477D6333M603333.225.660.5
B82477D6473M603472.834.781.8

Related

Source: TDK

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