SR15W

SR15W LOW CAPACITANCE TVS DIODE ARRAY Features ● ● ● ● ● ● Ultra low leakage: nA level Operating voltage: 15V Low clamping voltage Complies with following standards: – IEC 61000-4-2 (ESD) immunity test Air discharge: ±30kV Contact discharge: ±30kV – IEC61000-4-4 (EFT) 40A (5/50ns) – IEC61000-4-5 (Lightning) 11A (8/20μs) RoHS Compliant Dimensions SOT-143 AEC-Q101 qualified Pin Configuration Applications ● USB Power & Data Line Protection ● Ethernet 10BaseT ● I2C Bus Protection ● Video Line Protection ● T1/E1 secondary IC Side Protection ● Microcontroller Input Protection ● ISDN S/T Interface ● WAN/LAN Equipment Mechanical Characteristics ● SOT-143 Package ● Molding Compound Flammability Rating : UL 94V-O ● Weight 10 Millgrams (Approximate) ● Quantity Per Reel : 3,000pcs ● Reel Size : 7 inch ● Lead Finish : Lead Free Absolute Maximum Ratings(Tamb=25°C unless otherwise specified) Parameter Peak Pulse Current (8/20μs) ESD per IEC 61000−4−2 (Air) Symbol Ppp Value Unit 350 W ±30 VESD Kv ±30 ESD per IEC 61000−4−2 (Contact) Operating Temperature Range TJ -55 to +125 ℃ Storage Temperature Range TSTJ -55 to +150 ℃ Rev 2.0 : 12.01.2019 1/7 www.leiditech.com SR15W Electrical Characteristics(TA=25°C unless otherwise specified) Vc Part Number SR15W Device Marking VRWM (V) VBR (V) LKD 15 16.5 Rev 2.0 : 12.01.2019 IT (mA) 1 VC @1A 20 2/7 (Max) 32 (@A) 11 IR μA (Max) 1 C (Pf) (Typ.) 5 www.leiditech.com SR15W TYPIC CHARACTERISTICS Figure 1. 8 x 20μs Waveform Figure 2. Power Derating Curve Figure 3. Clamping Voltage vs. Peak Pulse Current (tp=8/20μs) Rev 2.0 : 12.01.2019 3/7 www.leiditech.com SR15W TYPIC CHARACTERISTICS Figure 4. Typic Breakdown Voltage vs. Temperature Figure 5. Typic Reverse Current vs. Temperature Rev 2.0 : 12.01.2019 4/7 www.leiditech.com SR15W TYPIC CHARACTERISTICS Figure 6. Typic Capacitance vs. Reverse Voltage Rev 2.0 : 12.01.2019 5/7 www.leiditech.com SR15W 1. Data lines and power supply protection using Vcc as referance To protect data lines and the power line, connect Pin 4 directly to the positive supply rail (Vcc). In this configuration the data lines are referanced to the supply voltage. The internal TVS diode prevents over-voltage on the supply rail. The path length is kept as short as possible to minimize parasitic inductance.' 2. Data lines protection with bias and power supply isolation resistor The SR15W serise can be isolated from the power supply by adding a series resistor between pin 4 and Vcc+. A value or 10kΩ is recommended. The internal TVS and steering diodes remain biased, providing the advantage of lower capacitance. The path length is kept as short as possible to minimize parasitic inductance. 3. Data lines protection using internal TVS diodes as referance In applications where no positive supply referance is available, or complete supply isolation is desired, the internal TVS may be used as the referance. In the case, pin 4 is not connected. The steering diodes will begin to conduct the voltage on the protected line exceeds the working voltage of the TVS (plus one diode drop). Rev 2.0 : 12.01.2019 1/7 www.leiditech.com SR15W SOT-143 Package Outline & Dimensions Shanghai Leiditech Electronic Co.,Ltd Email: sale1@leiditech.com Tel : +86- 021 50828806 Fax : +86- 021 50477059 Rev 2.0 : 12.01.2019 7/7 www.leiditech.com