TVS Diodes Axial Leaded 6kA > AK6-Y series RoHS Pb e4 AK6-Y Series Description The AK6-Y series of high power TVS diode is specially designed for meeting severe surge test environment of both AC and DC line protection applications. It features a very fast response and ultra low clamping characteristics as compared to MOVs (Metal Oxide Varistors). It TM accomplishes this by virtue of the Littelfuse Foldback 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 maintained at a minimum magnitude, providing the best possible protection level. These AK components can be connected in series and / or parallel to Agency Recognitions create a very high surge current protection solution. AGENCY AGENCY FILE NUMBER Features E128662 Recognized to UL 497B as IEC-61 000-4-2 ESD an Isolated Loop Circuit 15kV(Air), 8kV (Contact) Maximum Ratings and Thermal Characteristics O Protector ESD protection of dat a (T =25 C unless otherwise noted) A Both reflow and wave lines in accordance with soldering capable IEC 61000-4-2 Parameter Symbol Value Unit Very low clamping voltage EFT protection of dat a Operating Storage Temperature T -55 to 150 C STG Range lines in accordance with Ultra compact: less IEC 61000-4-4 than one-tenth the size Operating Junction Temperature T -55 to 125 C J Range of traditional discrete Halogen-free and RoHS solutions compliant 1 Current Rating I 6 kA PP Sharp breakdown voltage Glass passivated junction nd Low slope resistance Pb-free E4 means 2 level Note: 1. Rated I measured with 8/20s pulse. interconnect is Pb-free PP Bi-directional and the terminal finish Foldback technology for material is silver Functional Diagram superior clamping factor Symmetric in leads width for easier soldering during assembly. Bi-direcctional Electrical Characteristics (T =25C unless otherwise noted) A Max. Clamping Max. Max. Max. Test Standoff Typical Agency Reverse Breakdown Voltage Temp Capacitance Reverse Current Part Part Voltage I Approval R Voltage (V ) I V I Peak Pulse Coefficient 0 Bias Leakage BR T CL pp O I Numbers Marking (V ) 85 C T SO Current (I ) (Note 1) OF V 10kHz (I ) V PP BR R SO Volts (A) A O Min Volts Max Volts (mA) V Volts I Amps (%/ C) (nF) CL PP AK6-030C-Y 6-030C 30 10 15 32 37 10 90 6,000 0.1 11.0 X AK6-058C-Y 6-058C 58 10 15 64 70 10 110 6,000 0.1 8.0 X AK6-066C-Y 6-066C 66 10 15 72 80 10 120 6,000 0.1 6.0 X AK6-076C-Y 6-076C 76 10 15 85 95 10 140 6,000 0.1 6.5 X AK6-170C-Y 6-170C 170 10 15 180 220 10 260 6,000 0.1 2.8 X AK6-190C-Y 6-190C 190 10 15 200 245 10 290 6,000 0.1 2.5 X AK6-240C-Y 6-240C 240 10 15 250 285 10 340 6,000 0.1 2.0 X AK6-380C-Y 6-380C 380 10 15 401 443 10 520 6,000 0.1 1.4 X AK6-430C-Y 6-430C 430 10 15 440 490 10 625 6,000 0.1 1.0 X Note: Using 8/20s wave shape as defined in IEC 61000-4-5. 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 07/18/19TVS Diodes Axial Leaded 6kA > AK6-Y series Figure 2 - Pulse Waveform Figure 1 - Peak Power Derating 100 t = rise time to peak value r t = decay time to half value d Peak 80 100 Value t x t =8/20s r d 60 40 50 Half Value 20 0 0 0255075 100 125 t t r d 0 t Time (s) T - Initial Junction Temperature (C) J Figure 3 - Typical Peak Pulse Power Rating Curve Figure 4 - Typical V Vs Junction Temperature BR 10000 12 AK6-430C-Y 10 8/20s 8 1000 6 4 10/350s 2 AK6-076C-Y 100 0 10/1000s -2 -4 10 -6 -8 1 -50 -250 25 50 75 100 125 0.00001 0.0001 0.001 Junction Temperature(T ) j t -Pulse Width (sec.) d Figure 5 -Surge Response (8/20 Surge current waveform) Voltage Current Time (s) Note: The power dissipation causes a change in avalanche voltage during the surge and the avalanche voltage eventually returns to the original value when the transient has passed. 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 07/18/19 Percent of Rated Value P -Peak Pulse Power (kW) PPM I Peak Pulse Current %I PP PP Percent of V Change BR