90
080216
TransFeed Automotive Series
AVX Multilayer Ceramic Transient Voltage Suppressors
TVS Protection and EMI Attenuation in a Single Chip
GENERAL DESCRIPTION
AVX has combined the best electrical characteristics of its
TransGuard® Transient Voltage Suppressors (TVS) and its
Feedthru Capacitors into a single chip for state-of-the-art
overvoltage circuit protection and EMI reduction over a
broad range of frequencies. This unique combination of
multilayer ceramic construction in a feedthru configuration
gives the circuit designer a single 0805 chip that responds
to transient events faster than any TVS device on the mar-
ket today, and provides significant EMI attenuation when in
the off-state.
Automotive TransFeeds are designed for automotive appli-
cations and are AEC-Q 200 qualified.
The reduction in parallel inductance, typical of the feedthru
chip construction when compared to the construction of
standard TVS or ceramic capacitor chips, gives the
TransFeed product two very important electrical advan-
tages: (1) faster “turn-on” time. Calculated response times
of <200 pSec are not unusual with this device, and mea-
sured response times range from 200 – 250 pSec. The
TransFeed “turn-on” characteristic is less than half that of
an equivalent TransGuard® part — and TransGuards®
clamp transient voltages faster than any other bipolar TVS
solution such as diodes; (2) the second electrical advantage
of lower parallel inductance, coupled with optimal series
inductance, is the enhanced attenuation characteristics of
the TransFeed product. Not only is there significantly
greater attenuation at a higher self-resonance frequency,
but the roll-off characteristic becomes much flatter, result-
ing in EMI filtering over a much broader frequency spec-
trum. Typical applications include filtering/protection on
Microcontroller I/O Lines, Interface I/O Lines, Power Line
Conditioning and Power Regulation.
Schematic Diagram
Electrical Model
TYPICAL APPLICATIONS
• Drive by Wire
• Dimming Mirror Circuit
• Filtering/protection on Microcontroller I/O lines
• Filtering/protection on Interface I/O lines
• Power Line Conditioning
• Power Regulation
• LCD Dashboard driver
Where designers are concerned with both tran-
sient voltage protection and EMI attenuation,
either due to the electrical performance of their
circuits or due to required compliance to specif-
ic EMC regulations, the TransFeed product is an
ideal choice.
GENERAL
CHARACTERISTICS
• Operting Teperature: -55°C to +125°C
• Working Voltage: 5.6Vdc - 26Vdc
• Case Size: 0805
• Energy Rating: 0.05 - 0.3J
• Current: 20 - 120A
• Max Feedthru Current: 0.5 - 1A
FEATURES
• Bi-directional TVS
• Narrow band, high
attenuation filter
• EMI Filtering over broader
frequency range
• Fastest Response Time to
ESD Strikes
• AEC-Q 200 Qualified
