TDK Varistors(SMD) AVF16 Series User manual

(1/2)
002-03 / 20080929 / e9c11_avf.fm
• All specifications are subject to change without notice.
Varistors(SMD)
For High-speed Differential Signal Line
AVF16 Series
A low-voltage varistor applicable in high frequencies has been manufactured by using TDK circuit and material technology.
FEATURES
• Chip size: 1608 (L1.6×W0.8mm), applicable in 2 Line-in 1 (2in1)
differential line.
• 2GHz or more of cutoff frequency in differential mode (Sdd21).
• Superior electrostatic absorption characteristics due to reduction
of varistor voltage.
• Meeting Electrostatic Discharge Test IEC61000-4-2, HBM
(human body model) contact 8kV.
APPLICATIONS
• Protective circuit for high-speed differential signal from static
electricity
• HDMI, USB, IEEE1394, etc.
SHAPES AND DIMENSIONS RECOMMENDED PC BOARD PATTERNS
CIRCUIT DIAGRAM
ELECTRICAL CHARACTERISTICS
Conformity to RoHS Directive
1.6±0.1
P=0.5typ.
0.18typ.
0.8±0.1
0.25±0.1
±0.005 0.5±0.1
0.25±0.1 0.25±0.1
±0.065
Dimensions in mm
0.12+0.05
–0.12
0.25+0.05
–0.25
0.25typ.
0.12typ. 0.25typ.
264
153
NC∗1NC∗1
PP
Mark∗2
∗1 
Do not solder the terminal NC(not connected) with land etc.
∗2 
Mark is unrelated to the polarity (directionality) of the terminal.
0.18+0.05
–0.10
Dimensions in mm
0.25
Area of solder resist
0.4
0.5
0.80.4
1.2
0.1
0.6
IN1 GND IN2
OUT1 GND OUT2
NCNC
Transmission line
Not externally connectable
: Terminal for internal circuit connection
Part No.
Varistor voltage
V1mA
(V)
Maximum
continuous
voltage
Edc(V)
Cut-off
frequency
[Sdd21]
(GHz)
AVF16C212A000F205 12 5.5 2 min.
AVF16C225A000F405 25 5.5 4 min.
• Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific
bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.

(2/2)
002-03 / 20080929 / e9c11_avf.fm
• All specifications are subject to change without notice.
TYPICAL ELECTRICAL CHARACTERISTICS
DIFFERENTIAL MODE FREQUENCY CHARACTERISTICS
[Sdd21]
TDR(Leading edge of pulse: 200ps)
AVF16C225A000F405
–30
0
–10
–20
10 100 1000 10000
Insertion loss(dB)
Frequency(MHz)
AVF16C212A000F205
AVF16C225A000F405
0
60
140
120
130
110
100
80
90
70
1.41.21.00.8
Time(ns)
0.60.40.2
Impedance(Ω)
AVF
HDMI receptacle
Test adapter
connector
PCB Through