SHANGHAI SEMITECH SEMICONDUCTOR CO., LTD SOT05C—SOT36C Dual Transient Voltage Suppressors for ESD Protection Features z z z z z z z z z SOT-23 Package 2 Unidirectional Transil functions Peak Power Dissipation 300W @8 x 20 us Pulse Low Leakage Fast Response Time < 1 ns Protects RS232 I/O Port ESD Protection to IEC 61000-4-2 Level 4,15KV(Air), 8KV(Contanct) 16KV Human Body Model ESD Requirements RoHS Compliant in Lead-Free Versions Applications z Computers z Printers z Communication Systems Absolute Maximum Ratings Symbol Parameter Value Units PPP Peak Pulse Power (tp = 8/20μs) 300 W TL Maximum lead temperature for soldering during 10s 260 °C Tstg Storage Temperature Range -55 to +15 °C Top Operating Temperature Range -40 to +125 °C Tj Maximum junction temperature 150 °C Electrostatic discharge VPP MIL STD 883C -Method 3015-6 25 IEC61000-4-2 air discharge 16 IEC61000-4-2 contact discharge 9 kv SOT05C—SOT36C Electrical Characteristics 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 Electrical Characteristics Ratings at 25°C ambient temperature unless otherwise specified. Maximum Minimum Maximum Maximum Leakage Breakdown Clamping Pulse Peak Current Voltage Voltage Current @ VRM 1mA VRM IRM VBR V µA V V Rated Stand-off Part Numbers Marking Maximum Capacitance Voltage 1A 1) 5A 1) tp=8/20us 0v, 1MHz IPPM C V A pF VCL SESOT04C 04C 4.0 20.0 5.0 8.5 10.5 17 300 SESOT05C 05C 5.0 20.0 6.0 9.8 12.5 17 220 SESOT08C 08C 8.0 5.0 8.5 13.4 15.0 15 190 SESOT12C 12C 12.0 1.0 13.3 19.0 28.0 12 150 SESOT15C 15C 15.0 1.0 16.7 24.0 35.0 10 140 SESOT24C 24C 24.0 1.0 26.7 43.0 60.0 5 83 SESOT36C 36C 36.0 1.0 40 60.0 75.0 2 80 1).8/20 waveform used. (see fig2.) Typical Characteristics Fig1. Peak Pulse Power VS Pulse Time SOT05C—SOT36C Fig2. Pulse Waveform Fig3.Power Derating Application Note: Electrostatic discharge (ESD) is a major cause of failure in electronic systems. Transient Voltage Suppressors (TVS) are an ideal choice for ESD protection. They are capable of clamping the incoming transient to a low enough level such that damage to the protected semiconductor is prevented. Surface mount TVS arrays offer the best choice for minimal lead inductance. They serve as parallel protection elements, connected between the signal line to ground. As the transient rises above the operating voltage of the device, the TVS array becomes a low impedance path diverting the transient current to ground. The SOTxxC array is the ideal board evel protection of ESD sensitive semiconductor components. The tiny SOT23 package allows design flexibility in the design of high density boards where the space saving is at a premium. This enables to shorten the routing and contributes to hardening againt ESD. SOT05C—SOT36C Package Dimensions