ITA10B1| Datasheet

ITA10B1, ITA18B1, ITA18B1RL, ITA25B1, ITA25B1RL, ITA6V5B1, ITA6V5B1RL, ITAxxB1

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ITAxxB1
Bidirectional TransilTM array for data line protection
Features

High surge capability Transil array: IPP = 40 A (8/20 us) Peak pulse power: 300 W (8/20 us) Up to 5 bidirectional Transil functions Low clamping factor (VCL / VBR) at high current level Low leakage current ESD protection up to 15 kV Figure 1.
I/O1 I/O2 I/O3 I/O4
SO-8

Functional diagram
1 2 3 4 8 GND 7 6 5 GND

Complies with the following standards

IEC 61000-4-2 level 4 15 kV (air discharge) 8 kV (contact discharge) MIL STD 883G- Method 3015-7: class 3B 25 kV (human body model)

Applications
Differential data transmission line protection, such as:

RS-232 RS-423 RS-422 RS-485

Description
Transil diode arrays provide high overvoltage protection by clamping action. Their instantaneous response to transient overvoltages makes them particularly suited to protect voltage sensitive devices such as MOS technology and low voltage supplied IC's. The ITA series combines high surge capability against energetic pulses with high voltage performance against ESD.
TM: Transil is a trademark of STMicroelectronics

November 2007

Rev 2

1/7
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