Transient Voltage Suppression Diodes Axial Leaded – 3kA > AK3 series AK3 Series RoHS Pb e4 Description The AK3 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 over traditional metal oxide ( MOV ) solutions. They can be connected in series and / or parallel to create a very high surge current protection solution.. Features Agency Approvals AGENCY AGENCY FILE NUMBER E128662 Maximum Ratings and Thermal Characteristics (TA=25OC unless otherwise noted) Parameter Operating Storage Temperature Range Operating Junction Temperature Range Current Rating1 Symbol Value Unit TSTG -55 to 150 °C TJ -55 to 125 ºC IPP 3 kA Note: 1. Rated IPP measured with 8/20μs pulse. Functional Diagram • Very low clamping voltage • Ultra compact: less than one-tenth the size of traditional discrete solutions •Sharp breakdown voltage • Low slope resistance • Bi-directional • Foldbak technology for superior clamping factor • Symmetric in leads width for easier soldering during assembly. • IEC-61000-4-2 ESD 15kV(Air), 8kV (Contact) • ESD protection of data lines in accordance with IEC 61000-4-2 • EFT protection of data lines in accordance with IEC 61000-4-4 • Halogen-free • RoHS compliant • Glass passivated junction • Pb-free E4 means 2nd level interconnect is Pb-free and the terminal finish material is Silver Additional Infomarion Bi-direcctional Datasheet Resources Samples Electrical Characteristics (T =25°C unless otherwise noted) A Part Numbers AK3 - 015C AK3 - 030C AK3 - 058C AK3 - 066C AK3 - 076C AK3 - 150C AK3 - 170C AK3 - 208C AK3 - 380C AK3 - 430C Max. Standoff Reverse Part Voltage Leakage Marking (VSO) (IR) @VSO Volts µA 3 - 015C 3 - 030C 3 - 058C 3 - 066C 3 - 076C 3 - 150C 3 - 170C 3 - 208C 3 - 380C 3 - 430C 15 30 58 66 76 150 170 208 380 430 10 10 10 10 10 10 10 10 10 10 Note: 1. Using 8/20µS wave shape as defined in IEC 61000-4-5. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/20/15 Max. Clamping Max. Max. Typical Reverse Breakdown Test Agency Voltage Temp Current Capacitance Approval IR @ Voltage (VBR) @ IT VCL @ Ipp Peak Pulse Coefficient IT 0 Bias 10kHz 85OC Current (IPP) (Note 1) OF VBR (µA) Min Volts Max Volts (mA) VCL Volts IPP Amps (%/OC) (nF) 15 15 15 15 15 15 15 15 15 15 16 32 64 72 85 158 179 223 401 440 19 37 70 80 95 194 220 246 443 490 10 10 10 10 10 10 10 10 10 10 28 90 110 120 140 230 260 262 520 625 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 9.0 11.0 6.0 6.0 6.0 2.6 2.4 2.4 2.0 2.0 X X X X X X X X X Transient Voltage Suppression Diodes Axial Leaded – 3kA > AK3 series Flow/Wave Soldering (Solder Dipping) Physical Specifications Contact manufacturer Weight Case Epoxy encapsulated Terminal Silver plated leads, solderable per MIL-STD-750 Method 2026 Peak Temperature : 265OC Dipping Time : 10 seconds Soldering : 1 time Wave Solder Profile Figure 1 - Non Lead-free Profile Figure 2 - Lead-free Profile 300 300 250 250 TEMPERATURE (ºC) TEMPERATURE (ºC) Maximum Wave 260C Maximum Wave 240C 200 150 100 50 200 150 100 50 0 0 0.5 1 1.5 2 2.5 3 3.5 0 4 0 TIME(MINUTES) 0.5 1 1.5 2 2.5 3 3.5 4 TIME(MINUTES) Ratings and Characteristic Curves (T =25°C unless otherwise noted) A Figure 4 - Surge Response 100 80 Current (kA) Percent of Rated Value Figure 3 - Peak Power Derating 60 40 20 0 0 25 50 75 100 TJ - Initial Junction Temperature (ºC) 125 Voltage (V) continues on next page. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/20/15 Transient Voltage Suppression Diodes Axial Leaded – 3kA > AK3 series Ratings and Characteristic Curves (T =25°C unless otherwise noted) (Continued) A Figure 5 - Typical Peak Pulse Power Rating Curve 12 10 8/20µs 100 10/350µs AK3-076C 10/1000µs 10 1 8 Percent of VBR Change PPPM-Peak Pulse Power (kW) 1000 Figure 6 - Typical VBR Vs Junction Temperature 6 4 2 0 -2 -4 -6 -8 0.1 0.00001 0.0001 -50 0.001 0 25 50 75 100 Junction Temperature(Tj ) td-Pulse Width (sec.) Figure 7 -Surge Response (8/20 Surge current waveform) -25 Figure 8 - Pulse Waveform Current Time (µs) 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. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/20/15 IPP – Peak Pulse Current – %IPP Voltage Peak Value 100 tr = rise time to peak value td = decay time to half value tr x td =8/20µs 50 Half Value 0 0 tr td t – Time (µs) 125 Transient Voltage Suppression Diodes Axial Leaded – 3kA > AK3 series Part Marking System Part Marking YWW Trace Code Marking Y:Year Code WW: Working Week Code Apply to P/N listed below: AK3-150C AK3-170C AK3-208C AK3-380C AK3-430C 3-xxxx LF LF YWW 3-XXXX Littelfuse Logo Apply to P/N listed below: AK3-015C AK3-030C AK3-058C AK3-066C Littelfuse Logo AK3-076C Part Marking Trace Code Marking Y:Year Code WW: Working Week Code Type 1- Side View Type 2 - Top View Packing Options Part Numbering System AK3 - XXXX Stand Off Voltage Series Type (Please Refer to Electrical Characteristics Chart) Part Number Component Package Quantity Packaging Option AK3-XXXX AK Package 56pcs/Box Bulk AK3-XXXX-12 AK Package 12pcs/Box Bulk Dimensions Dimensions A G L2 F L1 C D C B C Inches Millimeters -015C 0.951 +/- 0.040 0.094 +/- 0.024 0.236 +/- 0.039 0.145 +/- 0.040 0.433 max. 0.050 +/- 0.002 0.374 max. 0.093 +/- 0.039 24.15 +/- 1.00 2.40 +/- 0.60 6.00 +/- 1.00 3.68 +/- 1.00 11.0 max. 1.27 +/- 0.05 9.50 max. 2.36 +/- 1.00 -030C/-066C 0.130 +/- 0.047 3.30 +/- 1.20 A B -208C D E F E G L1 L2 -058C/-076C -150C -170C -208C -380C -430C -208C -208C 0.168 +/- 0.047 4.27 +/- 1.20 0.383 +/- 0.047 9.72 +/- 1.20 0.420 +/- 0.047 10.67 +/- 1.20 0.358 +/- 0.047 9.10 +/- 1.20 0.547 +/- 0.047 13.90 +/- 1.20 0.583 +/- 0.047 14.80 +/- 1.20 0.296 +/- 0.047 7.52 +/- 1.20 L1= L2 tolerance +/- 0.047 inch (+/- 1.20 mm) = A - (G+L1) tolerance +/- 0.047 inch (+/- 1.20 mm) L1= L2 tolerance +/- 0.047 inch (+/- 1.20 mm) © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/20/15