TVS Diode Datasheet LTKAK6 Series SMTO-218 - 6KA RoHS Pb e3 Description The LTKAK6 series offers superior clamping characteristics over TM standard S.A.D. technologies by virtue of the Littelfuse Foldbak technology, which provides a clamping voltage lower than the avalanche voltage (but above the rated working voltage). Therefore, any voltage rise due to increased current conduction is contained to a minimum, providing the best possible protection level.This LTKAK6 series can be combined in series or parallel solutions to offer various clamping levels and surge withstand options. The LTKAK6 SMT package provides a more compact PCB layout than typical through-hole AK TVS components. Features High Power TVS designed in Low clamping and slope a surface mount and compact resistance. SMTO-218 package Sharp breakdown voltage. Agency Approvals Patent pending package Meet MSL level1, per design J-STD-020, LF maximum Agency Agency File Number TM Foldbak Technology peak of 245C E128662 for superior clamping Pb-free E3 means 2nd level characteristics interconnect is Pb-free and Tube or tape and reel pack the terminal finish material is Maximum Ratings and Thermal Characteristics options available tin(Sn) (IPC/JEDEC J-STD- (T =25C unless otherwise noted) 609A.01) A Ideal for automatic pick and place assembly and UL R ecognized compound Parameter Symbol Value Unit reflow process to reduce meeting flammability rating the manufacturing cost and V-0 Operating Junction T -55 to 125 J increase the soldering quality C as compared to axial leaded Storage Temperature Range T -55 to 150 STG packages 1 Current Rating I 6 kA PP Typical Thermal Resistance Junction to R 10 C/W JL Lead Typical Thermal Resistance Junction to R 50 C/W JA Ambient Note: 1. Rated min I measured with 8/20s pulse. PP Electrical Characteristics (T =25C unless otherwise noted) A Max. Reverse Test Max. Clamping Max. Temp Max. Reverse Breakdown Voltage Standoff Current Voltage Coefficient of Capacitance Part Leakage (V ) I Voltage (V ) SO BR T I V (I ) V 0V Bias 10kHz Numbers (I ) V T C PP BR R SO (V) O (A) Min Volts Max Volts (mA) Volts (%/ C) (nF) LTKAK6-058C 58 10 64 70 10 110 0.1 6.5 LTKAK6-066C 66 10 72 80 10 120 0.1 5.5 LTKAK6-076C 76 10 85 95 10 140 0.1 4.5 nd Note: Using 8/20 waveshape as defined in IEC 61000-4-5 2 edition. Surge Ratings Max Peak Pulse Current (I ) PP Part (80/20S) (10/350S) (10/1000S) Numbers (A) (A) (A) Min Min Typ Min LTKAK6-058C 6,000 900 1,100 430 LTKAK6-066C 6,000 900 1,100 430 LTKAK6-076C 6,000 900 1,100 430 2021 Littelfuse, Inc. 1 Specifications are subject to change without notice. Revised: JC.03/18/21TVS Diode Datasheet LTKAK6 Series SMTO-218 - 6KA I-V Curve Characteristics I P Peak Pulse Power Dissipation -- PPM Bi-directional Max power dissipation I PP V Stand-off Voltage -- R Maximum voltage that can be applied to the TVS without operation V Breakdown Voltage -- BR Maximum voltage that flows though the TVS at a specified test current (I ) T V Clamping Voltage -- I C T Peak voltage measured across the TVS at a specified Ippm (peak impulse current) I R I Reverse Leakage Current -- V R Current measured at V V V V R R BR C Ratings and Characteristic Curves (T =25C unless otherwise noted) A Typical Peak Pulse Power Rating Curve Peak Power Derating 900 8/20s 800 100 700 80 LTKAK6-076C 600 500 60 LTKAK6-066C 400 40 LTKAK6-058C 300 20 200 10/350s 100 0 0 0255075 100 125 0.000010.00010.001 0.01 T - Initial Junction Temperature (C) J td-Pulse Width (sec.) Please contact Littelfuse for reliability or FIT/MTBF data , the performance is subject to vary and depends on the end customers application condition. Pulse Waveform t = rise time to peak value r t = decay time to half value d Peak 100 Value t x t =8/20s r d 50 Half Value 0 t t r d 0 t Time (s) 2021 Littelfuse, Inc. 2 Specifications are subject to change without notice. Revised: JC.03/18/21 I Peak Pulse Current %I PP PP PPPM-Peak Pulse Power (kW) Percent of Rated Value