ESDAxx Series Dual transil array for ESD protection P b Lead(Pb)-Free Description: * The ESDAxx is a dual monolithic voltage suppressor designed to protect components which are connected to data and transmission lines against ESD. It clamps the voltage just above the logic level supply for positive transients, and to a diode drop below ground for negative transients. It can also work as bidirectionnal suppressor by connecting only pin1 and 2. ELECTROSTATIC DISCHARGE 300 WATTS 5.3/6.1/14.2/25 VOLTS 3 1 2 Features: * 2 Unidirectional Transil functions * Low leakage current: IR max< 20 μA at VBR * 300W peak pulse power(8/20μs) * High ESD protection level: up to 25 kV * Complies with the following standards: IEC61000-4-2 Level 4 MIL STD 883c - Method 3015-6 Class 3(Human Body Model) SOT-23 Eqivalent Circuit Diagram: Application: * Computers * Printers * Communication systems * It is particulary recommended for the RS232 I/O port protection where the line interface withstands only with 2kV ESD surges. Bidirectional Configuration Mechanical Data: * Case : Molded Epoxy * Marking : Marking Code * Weight : 0.008 grams(approx) SOT-23 Outline Dimensions Unit:mm A B TOP VIEW E G C D H K J WEITRON http://www.weitron.com.tw L M 1/3 Dim A B C D E G H J K L M Min 0.35 1.19 2.10 0.85 0.46 1.70 2.70 0.01 0.89 0.30 0.076 Max 0.51 1.40 3.00 1.05 1.00 2.10 3.10 0.13 1.10 0.61 0.25 26-Apr-07 ESDAxx Series Maximum Ratings(TA=25˚C Unless Otherwise Noted) Symbol Value Unit Peak Pulse Power Dissipation (t P= 8/20μs) PPP 300 W Lead Soldering Temperature TL 260(10s) °C Junction Temperature Range TJ 150 °C Operating Temperature Range Top -40 to +125 °C Storage Temperature Range Tstg -55 to +150 °C Electrostatic discharge MILSTD 833C-Method 3015-6 IEC61000-4-2 Air discharge IEC61000-4-2 ContactAir discharge VPP 25 16 9 kv Characteristic Electrical Characteristics Part Numbers VBR IR VRM IRM VF Rd αT C Typ(1) Max(2) Typ. 0v bias Min. Max. ESDA5V3 V 5.3 V 5.9 mA 1 V 3 µA 2 V 1.25 mA 200 mΩ 280 10-4/°C 5 pF 220 ESDA6V1 6.1 7.2 1 5.25 20 1.25 200 350 6 140 ESDA14V2 14.2 15.8 1 12 5 1.25 200 650 10 90 25 30 1 24 1 1.2 10 1000 10 50 ESDA25 Max. IF 1. Square pulse IPP=15A, tp=2.5µs. 2. ∆VBR=aT*(Tamb-25°C) * VBR(25°C). Electrical Parameter Symbol Parameter VRM Stand-off voltage VBR Breakdown voltage VCL Clamping voltage IRM Leakage current IPP Peak pulse current αT Voltage temperature coefficient VF Forward voltage drop C Capacitance Rd Dynamic resistance WEITRON http://www.weitron.com.tw 2/3 26-Apr-07 ESDAxx Series 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 3000 1000 Ppp(W) PPP(Tj initial)/PPP(Tj initial=25ºC) Typical Characteristics 0 25 50 75 100 125 100 0 150 0 10 Tj initial(ºC) Fig.1 Peak power dissipation vs Initial junction temperature 50.0 ESDA5V3 ESDA6V1 Fig.2 Peak pulse power vs exponential pulse duration(Tj =25°C) 200 ESDA14V2 100 C(pF) IPP(A) ESDA6V1 1.0 50 ESDA14V2 20 tp=2.5µs 0 5 0 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 ESDA25 1 2 5 Vcl(V) 10 20 50 VR(V) Fig.3 Clamping voltage vs peak pulse current (Tj =25°C, rectangular waveform, tp=2.5µs) Fig.4 Capacitance vs Reverse applied voltage 200 5.0 Tj=25ºC 100 ESDA5V3 1.0 ESDA6V1~ESDA14V2 ESDA14V2 ESDA6V1 ESDA25 IFM(A) IR(Tj) / IR(Tj=25ºC) F=1MHz Vosc=30mV ESDA5V3 ESDA25 10.0 0.1 100 tp(µs) ESDA25 10 0.1 ESDA5V3 1 25 50 75 100 125 0.01 Tj(ºC) http://www.weitron.com.tw 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 VFM(V) Fig.5 Relative varation of leakage current vs Versus junction temperature WEITRON 0.0 Fig.6 Peak forward voltage drop vs peak forward current 3/3 26-Apr-07