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기능 AVX Multilayer Ceramic Transient Voltage Suppressors
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V3F418X500Y3Gxx 데이터시트, 핀배열, 회로
TransFeed
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.
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
IN OUT
Electrical Model
IN LS
LS OUT
RV C RP
RON
LP
TYPICAL APPLICATIONS
• Fingerprint ID Circuit
• Magnetic Field Circuit
• LCD Dashboard Driver
Where designers are concerned with both transient voltage
protection and EMI attenuation, either due to the electrical
performance of their circuits or due to required compliance
to specific EMC regulations, the TransFeed product is an
ideal choice.
HOW TO ORDER
V 2 F 1 05 A 150 Y 2
ED
P
Varistor
Feedthru
Capacitor
Voltage
05 = 5.6VDC
09 = 9.0VDC
14 = 14.0VDC
18 = 18.0VDC
Varistor
Clamping
Voltage
150 = 18V
200 = 22V
300 = 32V
DC
Resistance
1 = 0.150 Ohms
2 = 0.200 Ohms
3 = 0.250 Ohms
Packaging
Code
Pcs./Reel
D = 1,000
R = 4,000
T = 10,000
400 = 42V
500 = 50V
Chip Size
2 = 0805
3 = 0612
No. of
Elements
Energy
Rating
X = 0.05J
A = 0.1J
Capacitance
Tolerance
Y = +100/-50%
Feedthru
Current
D = 500 mA
E = 750 mA
Termination Finish
P = Ni/Sn Alloy (Plated)
C = 0.3J
F = 1.0 Amp
68
Free Datasheet http://www.datasheet4u.com/




V3F418X500Y3Gxx pdf, 반도체, 판매, 대치품
TransFeed Array - V3F4 Series
TVS Protection and EMI Attenuation in a 4-Element Array
W
P
T
D
A
B
C
E
D
ES
BW
BL L
AF
V3F4
DIMENSIONS
LW
1.60 ± 0.20
(0.063 ± 0.008)
3.25 ± 0.15
(0.128 ± 0.006)
T
1.22 Max.
(0.048 Max.)
BW
0.41 ± 0.10
(0.016 ± 0.004)
BL
0.18 +0.25 -0.08
(0.007 +0.010 -0.003)
ES
0.41 ± 0.10
(0.016 ± 0.004)
mm (inches)
P
0.76 REF
(0.030 REF)
A
0.60 (0.024)
B
1.60 (0.064)
C
2.20 (0.088)
D
0.35 (0.014)
E
0.76 (0.030)
mm (inches)
F
2.60 (0.104)
71
Free Datasheet http://www.datasheet4u.com/

4페이지










V3F418X500Y3Gxx 전자부품, 판매, 대치품
TransFeed
AVX Multilayer Ceramic Transient Voltage Suppressors
TVS Protection and EMI Attenuation in a Single Chip
PERFORMANCE CHARACTERISTICS
FEEDTHRU VARISTORS
AVX Multilayer Feedthru Varistors (MLVF) are an ideal choice
for system designers with transient strike and broadband
EMI/RFI concerns.
Feedthru Varistors utilize a ZnO varistor material and the
electrode pattern of a feedthru capacitor. This combination
allows the package advantage of the feedthru and material
advantages of the ZnO dielectric to be optimized.
ZnO MLV Feedthrus exhibit electrical and physical advantages
over standard ZnO MLVs. Among them are:
1. Faster Turn on Time
2. Broadband EMI attenuation
3. Small size (relative to discrete MLV and EMI filter schemes)
The electrical model for a ZnO MLV and a ZnO Feedthru MLV
are shown below. The key difference in the model for
the Feedthru is a transformation in parallel to series induc-
tance. The added series inductance helps lower the injected
transient peak current (by 2πfL) resulting in an additional ben-
efit of a lower clamping voltage. The lowered parallel induc-
tance decreases the turn on time for the varistor to <250ps.
Discrete MLV Model
PCB
Trace
To Device
Requiring
Protection
LP
RV C RP
Ron
Solder Pad
Where: Rv =
Rp
C=
Ron =
Lp =
Voltage Variable resistance
(per VI curve)
1012 Ω
defined by voltage rating and energy level
turn on resistance
parallel body inductance
Discrete MLVF Model
LS
Solder Pad
To Device
Requiring
LS Protection
Solder Pad
RV C RP
Ron
LP
Solder Pad
Where: Rv =
Rp =
C=
Ron =
Lp =
Ls =
Voltage Variable resistance
(per VI curve)
Body IR
defined by voltage rating and energy level
turn on resistance
minimized parallel body inductance
series body inductance
74
Free Datasheet http://www.datasheet4u.com/

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V3F418X500Y3Gxx

AVX Multilayer Ceramic Transient Voltage Suppressors

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