AVX introduces series of High-temp, low-leakage automotive varistors

Date
01/19/2015

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CANATL Series automotive controlled-area-network varistors

AVX, a leading manufacturer of advanced passive components and interconnect
solutions, has introduced a series of high-temperature, low-leakage
automotive varistors. Qualified to AEC-Q200, the new high-temperature,
low-leakage CANATL Series automotive controlled-area-network varistors
exhibit extremely low leakage (less than or equal to1uA at 32VDC,
25°C) and are tested, qualified, and specified at 150°C,
making them ideal for use in high temperature underhood automotive
applications, such as transmission control units (TCUs), brake control
modules (BCMs), data lines, bus interface units, and other capacitance-sensitive applications.

Based on AVX's patented multilayer varistor (MLV) technology, which
combines circuit protection and EMI/RFI attenuation functions in a
single, high reliability device, CANATL Series automotive varistors are
zinc oxide based ceramic semiconductor devices that exhibit non-linear,
bi-directional voltage current characteristics similar to back-to-back
Zener diodes and an EMC capacitor in parallel.

In addition to the space savings provided by enabling EMI/RFI attenuation in the off-state,
CANATL Series multilayer varistors provide several valuable performance
advantages over diodes, including: high in-rush current capacity
(8x20uS), a high 25kV (HBM Level 6) ESD rating, low capacitance (10pF)
to minimize signal distortion, no derating over operating temperatures,
and very fast response times, which conservatively clamp the energy
before it reaches its maximum. CANATL Series varistors also exhibit
multi-strike capability, excellent solderability, and an impressive FIT
rate of less than or equal to0.1 per billion hours.

"By extending our trusted CAN Bus varistor offering with the new CANATL
Series high-temperature, low-leakage automotive varistors, we have
significantly expanded the number of applications that can benefit from
the unique space savings and performance advantages inherent to AVX's
patented MLV technology," said Jiri Machanicek, product manager at AVX.

Rated for use in temperatures spanning -55°C to 150°C,
CANATL Series automotive varistors are currently available in a 0603
case rated for 32VDC operating voltage. RoHS compliant, CANATL Series
varistors are supplied with Ni barrier/100% Sn terminations and
packaged on 7" or 13" reels. Pd/Ag terminations for hybrid assembly are
available upon request. Current lead time for the series is 14 weeks.

CANATL Series high temperature, low-leakage automotive varistors

CAN bus varistors

AVX

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