AOZ8318
Low Capacitance 2.5 V TVS Diode
General Description
Features
The AOZ8318 is a transient voltage suppressor array
designed to protect high speed data lines from ESD and
lightning.
ESD protection for high-speed data lines:
– IEC 61000-4-2, level 4 (ESD) immunity test
–
±30 kV (air discharge) and ±30 kV (contact discharge)
– IEC 61000-4-4 (EFT) 40 A (5/50 ns)
– IEC 61000-4-5 (Lightning) 25 A
– Human Body Model (HBM) ±30 kV
This AOZ8318 incorporates eight surge rated, low
capacitance steering diodes and a TVS in a single
package. During transient conditions, the steering
diodes direct the transient to either the positive side of
the power supply line or to ground. The AOZ8318
may be used to meet the ESD immunity requirements of
IEC 61000-4-2, Level 4 and IEC 61000-4-5. The TVS
diodes provide effective suppression of ESD voltages:
±30 kV (air discharge) and ±30 kV (contact discharge).
Small package saves board space
Low insertion loss
Protects four I/O lines
Low clamping voltage
Low operating voltage: 2.5 V
Green product
The AOZ8318 comes in a Halogen Free and RoHS
compliant DFN-10 2.6 mm x 2.6 mm package and is
rated over a -40 °C to +85 °C ambient temperature
range. The AOZ8318 is compatible with both lead free
and SnPb assembly techniques. The small size,
low capacitance and high ESD protection makes the
AOZ8318 ideal for protecting high speed video and data
communication interfaces.
Pb-free device
Applications
10/100/1000 Ethernet
USB 2.0 power and data line protection
Video graphics cards
Monitors and flat panel displays
Digital Video Interface (DVI)
T1/E1 telecom ports
Typical Application
AOZ8318
TP1+
TP1-
TP2+
1
2
3
GbE
TP2-
RJ45
Connector
4
5
6
7
8
Ethernet
TP3+
PHY
TP3-
TP4+
TP4-
AOZ8318
Figure 1. 10/100/1000 Ethernet Port Connection
Rev. 2.0 October 2014
www.aosmd.com
Page 1 of 8