US03DLC(-B) through US24DLC(-B) Transient Voltage Suppressor Features 350 Watts Peak Pulse Power per Line (tp = 8/20μs) Unidirectional & Bidirectional Configuration Protects One Power or I/O Port ESD Protection > 40 kilovolts Low Clamping Voltages Available in Multiple Voltage Types Ranging from 3V to 24V Ultra Low Capacitance: 3pF Typical IEC COMPATIBILITY (EN61000-4) IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact) IEC 61000-4-4 (EFT) 40A (5/50ns) IEC 61000-4-5(Surge): 12A, 8/20μs Mechanical Characteristics Applications Molded JEDEC SOD-323 package Ethernet - 10/100/1000 Base T Weight 10 milligrams (Approximate) Cellular Phones Flammability rating UL 94V-0 Handheld - Wireless Systems 8mm Tape and Reel Per EIA Standard 481 Personal Digital Assistant (PDA) Device Marking: Marking Code USB Interface RoHS/WEEE Compliant PIN Configuration 1 1 2 2 UNIDIRECTIONAL BIDIRECTIONAL U S xxDLC(-B) Absolute Maximum Rating Rating Symbol Value Units PPP 350 Watts TJ -55 to + 150 °C TSTG -55 to +150 °C Peak Pulse Power ( tp=8/20μs ) - See Figure 1 Operating Temperature Storage Temperature Electrical Parameters (T=25℃) Symbol I Parameter IPP Maximum Reverse Peak Pulse Current VC Clamping Voltage @ IPP VRWM IR VBR IPP IF Working Peak Reverse Voltage Maximum Reverse Leakage Current @ VRWM Test Current IF Forward Current VF Forward Voltage @ IF Bidirectional IT IR VC VBR VRWM IR VF VRWM VBR VC IT for Vrwm≥5V Breakdown Voltage @ IT IT Unidirectional V IPP Electrical characteristics PART NUMBER (See Note 1 & Note 2) US3DLC U S 3 D L C -B US05DLC US05DLC-B US08DLC US08DLC-B US12DLC US12DLC-B US15DLC US15DLC-B US18DLC US18DLC-B US24DLC US24DLC-B DEVICE MARKING RATED STAND-OFF VOLTAGE MINIMUM BREAKDOWN VOLTAGE VWM(Volts) @ 1mA VBR(Volts) MAXIMUM CLAMPING VOLTAGE (See Fig. 2) MAXIMUM CLAMPING VOLTAGE (See Fig. 2) @ IP = 1A VC(Volts) @8/20μs VC @ IPP MAXIMUM LEAKAGE CURRENT @VWM Id(μA) TYPICAL CAPACITANCE @0V, 1 MHz C(pF) 03 3.3 4.0 7.0 19.0V @ 20.0A 1 3 03B 3.3 4.0 7.0 19.0V @ 20.0A 1 3 05 5.0 6.0 9.8 18.3V @ 17.0A 1 3 05B 5.0 6.0 9.8 18.3V @ 17.0A 1 3 08 8.0 8.5 13.4 18.5V @ 17.0A 1 3 08B 8.0 8.5 13.4 18.5V @ 17.0A 1 3 12 12.0 13.3 19.0 28.6V @ 11.0A 1 3 12B 12.0 13.3 19.0 28.6V @ 11.0A 1 3 15 15.0 16.7 24.0 31.8V @ 10.0A 1 3 15B 15.0 16.7 24.0 31.8V @ 10.0A 1 3 18 18.0 20.0 29.0 45.0V @ 8.0A 1 3 18B 18.0 20.0 29.0 45.0V @ 8.0A 1 3 24 24.0 26.7 43.0 56.0V @ 6.0A 1 3 24B 24.0 26.7 43.0 56.0V @ 6.0A 1 3 Note 1: Part numbers with an additional “B” suffix are bidirectional devices, i.e., WS05DLC-B. Note 2: For Bidirectional Devices Only: Electrical characteristics apply in both directions. U S xxDLC(-B) Typical Characteristics Figure 2: Power Derating Curve 10 1 Percent of Rated Power for Ipp Ppp - Peak Pulse Power - Ppp(KW) Figure 1: Peak Pulse Power vs. Pulse Time 350w 8/20µs Waveform 0.1 110 100 90 80 70 60 50 40 30 20 10 0 0.01 0.1 1 10 100 0 1,000 td – Pulse Duration - µs 25 50 75 100 125 Ambient Temperature - TA (℃) Figure 4: Normalized Junction Capacitance vs. Reverse Voltage Figure 3: Clamping Voltage vs. Peak Pulse Current 20 1.1 1.0 F=1MHz 0.9 15 Cj(VR)/Cj(VR=0) Clamping Voltage -Vc(V) 150 10 0.8 0.7 0.6 0.5 0.4 0.3 5 0.2 0.1 0 0 5 10 15 20 25 0 30 0 1 Peak Pulse Current -Ipp(A) 2 3 4 Reverse Voltage -VR(V) Figure 6: ESD Clamping( 8kV Contact per IEC 61000-4-2) Figure 5: Pulse Waveform Tek Run : 5.00GS/s Sample WE05S 110 Waveform Paramters tr=8µs td=20µs 100 90 C1 Max 19.0V Percent Ipp 80 70 e-t 60 50 40 td=Ipp/2 30 20 R1 10 0 0 5 10 15 Time (µs) 20 25 30 Ch1 500mV M 10.0ns Ch1 1.36V 5 U S xxDLC(-B) Outline Drawing – SOD323 PACKAGE OUTLINE DIMENSIONS SYMBOL MILLIMETER INCHES MIN MAX A 1.60 1.90 MIN 0.063 MAX 0.075 B 1.15 1.45 0.045 0.057 C 2.39 2.70 0.094 0.106 D 0.92 1.10 0.036 0.043 E 0.25 0.40 0.010 0.016 F 0.10 0.20 0.004 0.008 H - 0.10 - 0.004 Notes 1. Controlling Dimensions in Millimeters. 2. Dimensions are exclusive of mold flash and metal burrs. TAPE & REEL ORDERING NOMENCLATURE 1. Surface mount product is taped and reeled in accordance with EIA-481. Marking Codes Part Number Marking Code U S xxDLC U S xxDLC-B