AK20-016C-Y

TVS Diodes Axial Leaded - 20kA > AK20-Y Series AK20-Y Series RoHS Pb e4 Descriptions The AK20-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 accomplishes this by virtue of the Littelfuse FoldbackTM 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 create a very high surge current protection solution. Features Agency Recognitions Agency • No wear-out nor degrade surge rating over multiple transient events as long as within surge capability • Ultra high power rating • Very low clamping voltage • Both reflow and wave soldering capable • Ultra compact: less than one-tenth the size of traditional discrete solutions •Sharp breakdown voltage • Low slope resistance • Bi-directional • Foldback technology for superior clamping factor • Symmetric lead width for easy soldering during assembly Agency File Number E128662 Maximum Ratings and Thermal Characteristics (TA=25OC unless otherwise noted) Parameter Symbol Value Unit °C Operating Storage Temperature Range TSTG -55 to 150 Operating Junction Temperature Range TJ -55 to 125 ºC Current Rating1 IPP 20 kA Note: 1. Rated IPP measured with 8/20μs pulse as defined in IEC 61000-4-5 2nd edition. Functional Diagram • IEC 61000-4-2 ESD 15 kV (air), 8 kV (contact) rating • Lightning, 20 kA (8/20 as defined in IEC 61000-4-5 2nd Edition) • EFT protection of data lines in accordance with IEC 61000-4-4 • UL Recognized compound meeting flammability rating V-0 •Halogen-free and RoHS compliant • Glass passivated junction • Pb-free E4 means 2nd level interconnect is Pb-free and the terminal finish material is silver (IPC/ JEDEC J-STD-609A.01) Bi-directional Electrical Characteristics (T =25°C unless otherwise noted) A Part Numbers Part Marking Max. Standoff Reverse Voltage Leakage (VSO) (IR) @VSO Volts (µA) Reverse Test Max. Clamping Voltage Breakdown Typical Voltage (V ) Current VCL @ Peak Pulse Current (IPP) BR I IR @ T @ IT 85OC VCL IPP VCL IPP (µA) Min Max (mA) (8/20μs) (8/20μs) (10/350μs) (10/350μs) Volts Volts Volts Amps Volts Amps Max. Max. Temp Capacitance Coefficient 0V Bias of VBR 10kHz (%/OC) (nF) AK20-016C-Y 20-016C 16 5 15 17.5 19.3 10 30 20,000 28 3,200 0.1 50 AK20-058C-Y 20-058C 58 5 15 64.0 70.0 10 120 20,000 107 3,200 0.1 15 AK20-063C-Y 20-063C 63 5 15 68.0 75.0 10 125 20,000 110 3,200 0.1 12 AK20-066C-Y 20-066C 66 5 15 72.0 80.0 10 130 20,000 120 3,200 0.1 12 AK20-076C-Y 20-076C 76 5 15 85.0 95.0 10 160 20,000 145 3,200 0.1 12 Note: using 8/20 waveshape as defined in IEC 61000-4-5 2nd edition ©2020 Littelfuse, Inc. Specifications are subject to change without notice. Revision: JC.12/28/20 TVS Diodes Axial Leaded - 20kA > AK20-Y Series Soldering Parameters Lead–free assembly Pre Heat - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) 200°C Ramp-up TL 60 – 120 secs - Time (min to max) (ts) Average ramp up rate (Liquidus Temp (TL) to peak 3°C/second max 3°C/second max TS(max) to TL - Ramp-up Rate Reflow tp TP - Temperature (TL) (Liquidus) 217°C - Time (min to max) (ts) 60 – 150 seconds Peak Temperature (TP) 260+0/-5 °C Time within 5°C of actual peak Temperature (tp) 30 seconds max Ramp-down Rate 6°C/second max Time 25°C to peak Temperature (TP) 8 minutes max. Do not exceed 260°C Temperature (T) Reflow Condition Critical Zone TL to TP tL Ts(max) Ramp-down Ts(min) ts Preheat 25˚C t 25˚C to Peak Time (t) Physical Specifications Weight Contact manufacturer Case UL Recognized epoxy meeting flammability rating V-0 Terminal Silver plated leads, solderable per MIL-STD-750 Method 2026 Flow Soldering (Solder Dipping) Pb - Free assembly Pre Heat - Temperature Min 140°C - Temperature Max 160°C Time to Pre-Heat Temp 60-150 seconds Average ramp up rate to Pre-Heat Temp 5°C/second max Peak Temperature 260+0/-5 °C Average ramp up rate (Tpre-heat to Tp) 5°C/second max Time within actual peak Temperature Max 6 seconds Ramp-down Rate 5°C/second max tP Temperature Wave soldering condition TP Ramp-up TS Ramp Down Pre-heat time to peak temperature Time (t) Ratings and Characteristic Curves (T =25°C unless otherwise noted) A Figure 2 - Typical VBR Vs Junction Temperature 12 10 100 Percent of VBR Change Percent of Rated Value Figure 1- Peak Power Derating 80 60 40 20 8 6 4 2 0 -2 -4 -6 -8 0 0 25 50 75 100 TJ - Initial Junction Temperature (ºC) 125 -50 -25 0 25 50 75 100 125 Junction Temperature(Tj ) ©2020 Littelfuse, Inc. Specifications are subject to change without notice. Revision: JC.12/28/20 TVS Diodes Axial Leaded - 20kA > AK20-Y Series Ratings and Characteristic Curves (T =25°C unless otherwise noted) (Continued) A Figure 4 -Surge Response (8/20 Surge Current Waveform) IPP – Peak Pulse Current – %IPP Figure 3 - Pulse Waveform Peak Value 100 tr = rise time to peak value td = decay time to half value Voltage tr x td =8/20µs 50 Half Value 0 0 td tr Current t – Time (µs) Note: Its Foldback TM technology provides a clamping voltage lower than the avalanche voltage (but above the rated working voltage). Also use similar clamping diagram showing the actual voltage waveshape reaction of this foldback technology as shown in attached text at the nd of this document. Please note this is specifically for a 10 kA rated AK, so we need an actual waveshape for this 20 kA rated component.. Dimensions A G L2 Dimensions Inches Millimeters A 0.950±0.030 24.15±0.8 B 0.095±0.024 2.4±0.60 C 0.236±0.040 6.00±1.0 D 0.630±0.055 16.0±1.4 E 0.050±0.002 1.27±0.05 F 0.587±0.055 14.9±1.4 G - 016C 0.157 max. 4.00 max. 0.307 max. 7.80 max. F L1 D C B E C L1= L2 tolerance +/- 0.04 inch (1.0 mm) L1/L2 Packing Options Part Numbering System Component Package Quantity Packaging Option AK20-XXXX-Y AK Package 56pcs/Box Bulk AK20-XXXX-Y-12 AK Package 12pcs/Box Bulk Part Number G - 058C/063C 066C/076C AK20 - XXXX -Y Yellow Coating Series Type Stand Off Voltage (Please Refer to Electrical Characteristics Chart) Part Marking System Part Marking YWW Trace Code Marking Y:Year Code WW: Working Week Code Type 1 - Side View Apply to P/N listed below: AK20-076C-Y 20-xxxx LF Littelfuse Logo Littelfuse Logo LF YWW 20-XXXX Apply to P/N listed below: AK20-016C-Y AK20-058C-Y AK20-063C-Y AK20-066C-Y Part Marking Trace Code Marking Y:Year Code WW: Working Week Code Type 2- Top View Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at http://www.littelfuse.com/disclaimer-electronics. ©2020 Littelfuse, Inc. Specifications are subject to change without notice. Revision: JC.12/28/20