ESDA25B1 STMicroelectronics

ESDA25B1 TRANSIL ARRAY Application Specific Discretes FOR ESD PROTECTION A.S.D. APPLICATIONS Where transient overvoltage protection in ESD sensitive equipment is required, such as : - COMPUTER - PRINTERS - COMMUNICATION SYSTEMS It is particulary recommended for RS232 I/O port protection where the line interface withstands only 2 kV ESD surges. FEATURES SO-8 6 BIDIRECTIONAL TRANSIL FUNCTIONS VERY LOW CAPACITANCE : C= 20 pF V RM 150 W peak pulse power (8/20 s) FUNCTIONAL DIAGRAM DESCRIPTION The ESDA25B1 is a monolithic voltage suppressor designed to protect components which are connected to data and transmission lines against EDS. I/O 1 8 I/O 6 1 BENEFITS I/O 2 2 7 I/O 5 High ESD protection level : up to 25 kV High integration I/O 3 3 6 I/O 4 Suitable for high density boards GND 4 5 GND COMPLIES WITH THE FOLLOWING STANDARDS : IEC 1000-4-2 : level 4 MIL STD 883C-Method 3015-6 : class 3 (human body model) October 1999 - Ed : 2 1/5ESDA25B1 ABSOLUTE MAXIMUM RATINGS (T = 25C) amb Symbol Parameter Value Unit V Electrostatic discharge 25 kV PP MIL STD 883C - Method 3015-6 P Peak pulse power (8/20s) 150 W PP T Storage temperature range - 55 to + 150 C stg T Maximum junction temperature 125 C j Maximum lead temperature for soldering during 10s TL 260 C ELECTRICAL CHARACTERISTICS (T = 25C) amb Symbol Parameter V Stand-off voltage RM V Breakdown voltage BR V Clamping voltage CL I Leakage current RM I Peak pulse current PP T Voltage temperature coefficient C Capacitance Rd Dynamic resistance Types V I I V Rd TC BR R RM RM min. max. max. typ. max. typ. note 1 note 1 note 2 note 3 0V bias -4 VV mA AV 10 /CpF ESDA25B1 25 30 1 2 24 1.5 9.7 15 note 1 : Between any I/O pin and Groung note 2 : Square pulse, Ipp = 25A, tp=2.5s. note 3 : V = T* (Tamb -25C) * V (25C) BR BR 2/5