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    Researchers Demonstrated High Energy Ceramic Capacitors Stable in Wide Temperature Range

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TDK Inductors: Compact Z transponder coils for automotive applications

6.10.2016
Reading Time: 2 mins read
A A

source: TDK EPCOS news

TDK Corporation presents a new series of EPCOS z-axis transponder coils for passive entry, passive start (PEPS) car access systems. With their dimensions of just 7.7 mm x 7.4 mm x 2.65 mm the components are extremely compact and feature a very low insertion height. The B82451L*E402 series comprises seven transponder coils covering an inductance range from 1.0 mH to 10.0 mH. Depending on the type, the transponder coils feature a sensitivity of between 7 mV/µT and 23 mV/µT at 125 kHz. The Q factor of the new components is between 50 and 58.

RelatedPosts

Benefits of Tantalum Powder Stress–Strain Curve Evaluation vs Conventional Wet Test

Electrolyte Selection and Performance in Supercapacitors

Connector PCB Design Challenges

The injection-molded plastic baseplate and laser-welded connections of the winding ensure that the Z transponder coils are extremely robust. The new components are also qualified according to AEC-Q200.

Moreover, the Z transponder coils can be combined very well with the EPCOS B82450A*A* and B82450A*E* transponder coil series for the x- and y-axes. With their footprints of just 11.4 mm x 3.5 mm and 8 mm x 2.7 mm, respectively, these components are also very compact. Solutions using three discrete transponder coils offer high flexibility of design and can save space on the PCB. A design combining the new Z transponder coil with two 8-mm X and Y transponder coils, for example, needs an area of just 100 mm². All EPCOS transponder coils are RoHS compatible.

Main applications

  • Passive entry, passive start (PEPS) car access systems

Main features and benefits

  • High sensitivity
  • Qualified according to AEC-Q200
  • RoHS compatible

Key data

Series Dimensions
[mm]
Inductance
[mH]
Sensitivity
[mV/µT]
Q factor
B82451L*E402 7.7 x 7.4 x 2.65 1.0 to 10 7 to 23 50 to 58

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