SELC2.8-4

SELC2.8-4 Rev-2021-1 www.Elecsuper.com SuperESD – SELC2.8-4 1. Description The SELC2.8-4 is a low capacitance TVS (Transient Voltage Suppressor) array designed to protect high speed data interfaces. It has been specifically designed to protect sensitive electronic components which are connected to data and transmission lines from over-stress caused by Electrostatic Discharge (ESD), cable discharge events (CDE), lightning and other induced voltage surges. 2. Features  IEC 61000-4-2 Level 4 ESD Protection  Low leakage current - ±30kV Contact Discharge  Low capacitance: Cj = 3pF typ. - ±30kV Air Discharge  RoHS compliant  Unidirectional configuration  450W Peak pulse Power (8/20us)  Low clamping voltage  Working voltage: 2.8V 3. Applications  10/100/1000 Ethernet  Analog Inputs  WAN/LAN Equipment  Base Station  Desktops, Servers, and Notebooks  Switch Systems 4. Ordering Information Part Number Package Marking Material Packing Quantity per reel Flammability Rating Reel Size SELC2.8-4 SOP-8 SLVU2.8-4 Halogen free Tape & Reel 2,500 PCS UL 94V-0 13 inches Table-1 Copyright© ElecSuper Incorporated Ordering information Contact Us 1 / 7 SELC2.8-4 Rev-2021-1 www.Elecsuper.com 5. Pin Configuration and Functions Pin 1 2 3 4 5 6 7 8 Name IO GND IO GND IO GND IO GND Description Connect to IO Connect to GND Connect to IO Connect to GND Connect to IO Connect to GND Connect to IO Connect to GND Outline 8 7 6 Circuit Diagram 5 8 7 6 5 1 2 3 4 U2.8 1 Table-2 2 3 4 Pin configuration 6. Specification 6.1. Absolute Maximum rating Over operating free-air temperature range (unless otherwise noted) Parameters Symbol Min. Max. Unit Peak pulse power (tp=8/20us)@25℃ Ppk - 450 W Peak pulse current (tp=8/20us)@25℃ IPP 20 A ESD (IEC61000-4-2 air discharge) @25℃ VESD - ±30 kV ESD (IEC61000-4-2 contact discharge) @25℃ VESD - ±30 kV TJ - 125 ℃ Operating temperature TOP -40 85 ℃ Storage temperature TSTG -55 150 ℃ TL - 260 ℃ Junction temperature Lead temperature Table-3 Copyright© ElecSuper Incorporated Absolute Maximum rating Contact Us 2 / 7 SELC2.8-4 Rev-2021-1 www.Elecsuper.com 6.2. Electrical Characteristics At TA = 25℃ unless otherwise noted Parameter Symbol Reverse Stand-off Voltage Conditions Min. Typ. VRWM Reverse Breakdown Voltage VBR IT=1mA Max. Units 2.8 V 3 V Reverse Leakage Current IR VRWM=2.8V Clamping Voltage VC IPP=1A; tp=8/20us 5 V Clamping Voltage VC IPP=20A; tp=8/20us 25 V Junction Capacitance CJ VR=0V; f=1MHz 3 pF Table-4 Symbol VRWM IR VBR 0.1 uA Electrical Characteristics Parameters Peak Reverse Working Voltage Reverse Leakage Current @ VRWM Breakdown Voltage @ IT IT Test Current IPP Maximum Reverse Peak Pulse Current VC Clamping Voltage @ IPP IF Forward Current VF Forward Voltage @ IF Copyright© ElecSuper Incorporated Contact Us 3 / 7 SELC2.8-4 Rev-2021-1 www.Elecsuper.com 7. Typical Characteristic 8. Typical Application Typical Interface Application Copyright© ElecSuper Incorporated Contact Us 4 / 7 SELC2.8-4 Rev-2021-1 www.Elecsuper.com 9. Dimension SO-8 Symbol A A1 A2 b c D E1 E Min. 1.35 0.10 1.25 0.31 0.17 4.80 3.80 Dimensions in Millimeters Max. Symbol 1.75 e 0.25 h 1.65 L 0.51 L1 θ1 0.25 5.00 4.00 6.00 BSC Table-5 Copyright© ElecSuper Incorporated Min. Max. 1.27 BSC 0.25 0.40 0.50 1.04 1.04 0° 8° Product dimensions Contact Us 5 / 7 SELC2.8-4 Rev-2021-1 www.Elecsuper.com 10. Recommended Land Pattern Note: 1. Controlling dimension: in millimeters 2. General tolerance: ±0.05mm 3. The pad layout is for reference only Copyright© ElecSuper Incorporated Contact Us 6 / 7 SELC2.8-4 Rev-2021-1 www.Elecsuper.com DISCLAIMER ELECSUPER PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATASHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. These resources are intended for skilled developers designing with ElecSuper products. 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ElecSuper’s products are provided subject to ElecSuper’s Terms of Sale or other applicable terms available either on www.elecsuper.com or provided in conjunction with such ElecSuper products. ElecSuper’s provision of these resources does not expand or otherwise alter ElecSuper’s applicable warranties or warranty disclaimers for ElecSuper products Copyright© ElecSuper Incorporated Contact Us 7 / 7