Murata has introduced an SMD version of its high-rated current common mode choke coil family, raising the rated current from 3 A to 10 A while reducing their footprint by approximately half. Dimensions of the new components are 13,4 x 8,9 x 6,6 mm.
The PLT10HH series is ideal for suppressing noise from the large numbers of electrical accessories (pumps, air conditioning, power steering, brakes, etc) used in electric vehicles, hybrid electric vehicles and other low fuel consumption vehicles. The various motors widely used in these vehicles generate electromagnetic noise when rotating, and this electromagnetic noise must be reduced to avoid adversely affecting onboard electronic equipment. In addition, common mode choke coils are also used in circuits other than motors, such as DC-DC converters and charging circuits, to reduce the common mode noise that leaks from power lines to each part.
There are four parts in the new family of automotive grade common mode choke coils. The PLT10HH1026R0PN and the PLT10HH9016R0PN both have rated current of 6 A d.c., with typical common mode impedance at 10 MHz of 1000 Ω and 900 Ω respectively (minimum common mode inductance 20 μH and 14 μH respectively). The PLT10HH501100PN and PLT10HH401100PN have rated current of 10 A d.c., with typical common mode impedance at 10 MHz of 500 and 400 respectively (minimum common mode inductance 9 μH and 6 μH respectively). All parts in the series have a rated voltage of 100 V d.c.
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