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new products
150°C rated 1206-inch chip ferrite beads
for automotive power lines
Murata Manufacturing Co., Ltd. introduces the
BLM31KN_BH series of 1206-inch (3.2 x 1.6mm) chip
ferrite beads for supplying power with guaranteed
usage at 150°C for automotive powertrain safety
applications.
This product was designed primarily for automotive
applications, for use as a noise suppression component
of power lines circuit installed in automotive engine
rooms and LED headlights which require guaranteed
usage at high temperatures. Mass production of the
product has already started.
Background
In today’s automotive applications, there is increasing
need for noise suppression in order to counteract rising
conductive noise and radiation noise resulting from
the development of motorization of various functions,
including hybrid and electric cars.
As an example, the number of motor circuits installed in
motor control circuits (with a brush) or inverter circuits
(brushless) has increased with the motorization of
powertrains, requiring noise suppression components
which are capable of dealing with large currents.
Furthermore, in order to reduce vehicle weight, which
is directly related to fuel economy improvement, the
electronic control units (ECU) of engine systems and
safety systems tend to be located in engine rooms
which reach high temperatures (mechatronic design),
requiring noise suppression components used in ECUs
that are also guaranteed to work at high temperatures.
Murata has realized a product that supports large
currents suitable for power lines (120ohm/4A at
125°C) by devising design specifications for internal
and external electrodes that can also be used in
environments of 150°C at a size of 1206 inches.
Murata will continue to focus on development of noise
suppression designs for these power lines.
Features
Conforming to AEC-Q200*1
Available within the range of -55°C to 150°C (with
derating*2 of the rated current)
Small size (3.2 x 1.6mm) capable of dealing with large
currents of up to 4A
Impedance up to 1000ohm (at 100MHz) is effective for
noise suppression.
Site URL for the product
BLM31KN_BH Series
See the series lineup here.
Terminology
*1 AEC-Q200
Reliability testing standards required for automotive
electric components and established by the Automotive
Electronics Council
*2 Derating of the rated current
A 150°C guaranteed product determines the rated
current at ambient temperatures of 125°C and 150°C
and guarantees the specifications and reliability in
environments of 150°C.
ON Semiconductor Introduces World’s
Most Compact Sigfox Verified Solution with
its First RF System-in-Package for Low Power
IoT Designs
igfox RC1 verified SiP provides turnkey RF solution
with module-like functionality in an IC form factor for
device-to-cloud communications ON Semiconductor
(Nasdaq: ON), driving energy efficient innovations, has
announcedanewprogrammableRF transceiver System
in Package (SiP) integrating an advanced RF System-
on-Chip (SoC) with all surrounding Bill of Material
(including a TCXO). The AX-SIP-SFEU provides the
most integrated Sigfox solution for both uplink (transmit)
and downlink (receive) communications. The device is
the first in a new family of SiPs that will be launched
over the coming months, providing a comprehensive
range of ready-to-use, turnkey radio frequency (RF)
solutions to support applications requiring Internet of
Things (IoT) connectivity.
New-Tech Magazine Europe l 75