Document: W33, Rev: C Transient Voltage Suppressor Features 4 Watts peak pulse power (t p =8/μs) One device protects one unidirectional line Two devices protect two high-speed data line pairs Low capacitance Low leakage current Low operating and clamping voltage Solid-state Punch through Avalanche TVS process technology IEC COMPATIBILITY (EN6-4) IEC 6-4- (ESD) ±5kV (air), ±8kV (contact) IEC 6-4-4 (EFT) 4A (5/5ns) IEC 6-4-5 (Lightning) 4A (8/μs) Mechanical Characteristics Applications JEDEC SOT3-3L package Molding compound flammability rating: UL 94V- Marking: Marking Code Packaging: Tape and Reel RoHS/WEEE Compliant Circuit Diagram Switching Systems WAN/LAN Equipment Desktops, Serves, Notebooks& Handhelds T/E secondary IC Side Protection Laser Diode Protection / Ethernet Base Stations Schematic & PIN Configuration SOT3-3L (Top View)
Absolute Maximum Rating Rating Symbol Value Units Peak Pulse Power(t p =8/μs) see Figure& Figure P PP 4 Watts Peak Pulse Current(t p =8/μs) I PP 4 A Lead Soldering Temperature T L 6(sec) C Operating Temperature T J -55 to + 5 C Storage Temperature T STG -55 to +5 C Electrical Parameters (T=5 ) Symbol IPP Parameter Maximum Reverse Peak Pulse Current VC VRWM @ IPP Working Peak Reverse Voltage IR Maximum Reverse Leakage Current @ VRWM VPT Punch-through Breakdown Voltage @ IT V SB I SB Snap-Back Voltage @ I SB Snap-Back Current IPT Test Current VPTF IPTF Forward Punch-through Breakdown Voltage @ I F Forward Test Current Electrical Characteristics(T=5 ) Parameter Symbol Conditions Minimum Typical Maximum Units Reverse Stand-Off Voltage V RWM Pin to3 or Pin to.8 V Punch-through Voltage V PT I PT =μa,pin to 3 3. V Snap-Back Voltage V SB I SB =5mA.8 V Reverse Leakage Current I R V RWM =.8V Pin to 3 or Pin to μa ( Note) I PP =A, tp=8/μs Pin to 3 3.9 V
Electrical Characteristics (Cont.) Parameter Symbol Conditions Minimum Typical Maximum Units I PP =5A, tp=8/μs Pin to 3 7. V I PP =4A, tp=8/μs Pin to 3 5 V I PP =A, tp=8/μs Pin to 4.5 V I PP =5A, tp=8/μs Pin to 9.5 V I PP =4A, tp=8/μs Pin to 6.5 V Pin & to Pin3 Junction Capacitance (Note) C j (Pin and tied together) 5 pf V R = V, f = MHz Pin to Junction Capacitance C j (Pin 3 N.C.) 3 6 pf V R = V, f = MHz Steer Diode Reverse Breakdown Voltage V BR I T =µa Pin to 3 5 V Reverse Leakage Current I R V RWM =.8V Pin to 3 μa Forward Voltage (Note3) V F I F =A Pin3 to V NOTES:. The 8/μs test pulse wave is shown in figure3, and the clamping voltage vs. I PP is shown in figure4.. The Junction Capacitance vs. Reverse Voltage is shown in figure5. 3. The Forward Voltage vs. Forward Current for Steer diode is shown in figure6.
Typical Characteristics Figure : Peak Pulse Power vs. Pulse Time Figure : Power Derating Curve Ppp Peak Pulse Power - Ppp(KW).. 4w 8/µs Percent of Rated Power for Ipp 9 8 7 6 5 4 3 t d Pulse Duration - µs Ambient Temperature - T A ( ) Figure3: Pulse Figure 4: vs. Peak Pulse Current Percent Ipp 9 8 7 6 5 4 3 e - Time (µs) td=ipp/ Paramters tr=8µs td=µs VC (V) 8 6 4 8 6 4 Pin to Pin to 3 Test Paramters tr=8µs td=µs 5 5 5 3 Peak Pulse Current I PP (A) Figure 5: Capacitance vs. Reverse Voltage Figure 6: Forward Voltage vs. Forward Current Capacitance Cj (pf) 3 5 5 5 f= MHz Pin & to 3 Pin to Forward Voltage VF(V) 6 4 8 6 4 Test Paramters tr=8µs td=µs.5.5.5 3 Reverse Voltage V R (V) 5 5 5 3 Forward Current I F (A)
Application Information The is designed to providing protection for electronic equipment that is susceptible to damage caused by Electrostatic Discharge (ESD), Electrical Fast Transients (EFT) and tertiary lightning effects. This product is offered in a unidirectional configuration and provides both common-mode and differential-mode protection. Unidirectional Common-mode Protection One provides one line of unidirectional protection in a common-mode configuration. Pins and are connected to Line Pin 3 is connected to ground Pin to Pin3 Clamp the positive transient Pin3 to pin clamp the negative transient approach to ground Bidirectional Common-mode Protection Two devices provide one line of bidirectional Protection in a common-mode configuration. LINE Pin of first and Pin of second is connected to Line Pin of first and Pin of second is connected to ground Pin 3 of both is not connected 3 3 the first device is used to clamp the negative transient the second device is used to clamp the positive transient Bidirectional Differential-mode Protection Two devices provide two lines of bidirectional protection in a differential-mode configuration. Pin of first and Pin of second is connected to Line Pin of first and Pin of second is connected to Line Pin 3 of both devices is not connected Pin to pin clamp the transient between line and line The configuration provide low capacitance protection for high speed differential line pair
Outline Drawing SOT3-3L PACKAGE OUTLINE 3 SOT3-3L DIMENSIONS SYMBOL INCHES MILLIMETER MIN MAX MIN MAX A.35.43.9. A..4.. A.35.39.9. D.79.87.. E.45.53.5.35 E.85.96.5.45 e. TYP.65 TYP e.47.55..4 L. REF.55 REF L..8.6.46 θ o 8 o o DIMENSIONS DIM INCHES MILLIMETERS Z.9.3 G.73.85 P. TYP.65 TYP X.8. Y.33.85 Notes. Dimensioning and tolerances per ANSI Y4.5M, 985.. Controlling Dimension: Inches 3. Pin 3 is the cathode (Unidirectional Only). 4. Dimensions are exclusive of mold flash and metal burrs. Marking Codes Part Number Marking Code U.8