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10B1
(Rev.:2004)

BIDIRECTIONAL TRANSIL™ ARRAY FOR DATALINE PROTECTION

STMicroelectronics 

®

ITAxxB1

BIDIRECTIONAL TRANSIL™ ARRAY

ASD™

FOR DATALINE PROTECTION

MAIN APPLICATIONS

Differential data transmission lines protection,

such as :

■ RS-232

■ RS-423

■ RS-422

■ RS-485

FEATURES

■ High surge capability Transil array:

IPP = 40 A (8/20µs)

■ Peak pulse power : 300 W (8/20µs)

■ Up to 5 bidirectional Transil functions

■ Low clamping factor (VCL / VBR) at high current

level

■ Low leakage current

■ ESD protection up to 15kV

DESCRIPTION

Transil diode arrays provide high overvoltage pro-

tection by clamping action. Their instantaneous re-

sponse to transient overvoltages makes them

particularly suited to protect voltage sensitive de-

vices such as MOS Technology and low voltage

supplied IC’s.

The ITA series combines high surge capability

against energetic pulses with high voltage per-

formance against ESD.

COMPLIES WITH THE FOLLOWING STANDARDS:

■ IEC61000-4-2 level 4:

15kV (air discharge)

8kV (contact discharge)

■ MIL STD 883E-Method 3015-7: class3

25kV HBM (Human Body Model)

SO-8

Table 1: Order Codes

Part Number

ITA6V5B1

ITA6V5B1RL

ITA10B1

ITA18B1

ITA18B1RL

ITA25B1

ITA25B1RL

Marking

6V5B1

6V5B1

10B1

18B1

18B1

25B1

25B1

Figure 1: Functional Diagram

I/O1 1

I/O2 2

I/O3 3

I/O4 4

8 GND

7

6

5 GND

TM: ASD and TRANSIL are trademarks of STMicroelectronics.

December 2004

REV. 1

1/6

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