SMAJ18A

Dimensions: [mm] Recommended Land Pattern: [mm] Electrical Properties: Properties Test conditions (Reverse) Breakdown Voltage 6,5 Clamping Voltage 5,11 ±0,2 (Reverse) Peak Pulse Current 1,7 1,14 ±0,38 2,3 1,45 ±0,2 1,9 2,14 ±0,16 2,25 ±0,25 Schematic: Cathode Tol. V max. VBR 1 mA 21.05 V ±5% 29.2 V max. 13.7 A max. 40 A max. (Forward) Peak Pulse Current 1) IPeak Leakage Current ILeak VDC 1 µA max. Steady State Power Dissipation PDiss TA = 50 °C 3.3 W max. Power Dissipation 2) PDiss 10/1000 µs 400 W max. 1) 2) Scale - 6:1 Unit 18 VClamp IPEAK IPeak 10/1000 µs Polarity 4,24 ±0,26 Value VDC DC Operating Voltage Unidirectional 8.3 ms single half-sine wave or equivalent square wave. Duty cycle = 4 pulses per minute Mounted on 5.0 mm x 5.0 mm (0.03 mm thick) Copper Pads to each terminal Certification: RoHS Approval Compliant [2011/65/EU&2015/863] REACh Approval Conform or declared [(EC)1907/2006] Halogen Free Conform [JEDEC JS709B] Halogen Free Conform [IEC 61249-2-21] UL Approval UL497B: E478010, UL 1449: E332875 Plastic Housing Flammability Rating UL94 V-0 2,67 ±0,13 General Information: Operating Temperature -65 up to +150 °C Storage Conditions (in original packaging) Cathode Band Anode < 40 °C ; < 75 % RH Moisture Sensitivity Level (MSL) 1 Test conditions of Electrical Properties: +20 °C, 33 % RH if not specified differently Scale - 6:1 Product Marking: Marking BT Würth Elektronik eiSos GmbH & Co. KG EMC & Inductive Solutions Max-Eyth-Str. 1 74638 Waldenburg Germany Tel. +49 (0) 79 42 945 - 0 www.we-online.com eiSos@we-online.com CHECKED REVISION DATE (YYYY-MM-DD) GENERAL TOLERANCE PeXu 001.003 2023-11-24 DIN ISO 2768-1m PROJECTION METHOD DESCRIPTION TECHNICAL REFERENCE WE-TVSP Power TVS Diode SMAJ18A ORDER CODE 824500181 SIZE/TYPE BUSINESS UNIT STATUS PAGE DO-214AC eiSos Valid 1/9 This electronic component has been designed and developed for usage in general electronic equipment only. This product is not authorized for use in equipment where a higher safety standard and reliability standard is especially required or where a failure of the product is reasonably expected to cause severe personal injury or death, unless the parties have executed an agreement specifically governing such use. Moreover Würth Elektronik eiSos GmbH & Co KG products are neither designed nor intended for use in areas such as military, aerospace, aviation, nuclear control, submarine, transportation, transportation signal, disaster prevention, medical, public information network etc.. Würth Elektronik eiSos GmbH & Co KG must be informed about the intent of such usage before the design-in stage. In addition, sufficient reliability evaluation checks for safety must be performed on every electronic component which is used in electrical circuits that require high safety and reliability functions or performance. Maximum Peak Pulse Power Rating: Peak Pulse Power and Current Derating: 10.0 100 90 80 Derating [%] Power [kW] 70 1.0 60 50 40 30 20 10 0.1 0 1 10 100 1000 0 50 Pulse Width [µs] 100 150 Ambient Temperature [°C] Würth Elektronik eiSos GmbH & Co. KG EMC & Inductive Solutions Max-Eyth-Str. 1 74638 Waldenburg Germany Tel. +49 (0) 79 42 945 - 0 www.we-online.com eiSos@we-online.com CHECKED REVISION DATE (YYYY-MM-DD) GENERAL TOLERANCE PeXu 001.003 2023-11-24 DIN ISO 2768-1m PROJECTION METHOD DESCRIPTION TECHNICAL REFERENCE WE-TVSP Power TVS Diode SMAJ18A ORDER CODE 824500181 SIZE/TYPE BUSINESS UNIT STATUS PAGE DO-214AC eiSos Valid 2/9 This electronic component has been designed and developed for usage in general electronic equipment only. This product is not authorized for use in equipment where a higher safety standard and reliability standard is especially required or where a failure of the product is reasonably expected to cause severe personal injury or death, unless the parties have executed an agreement specifically governing such use. Moreover Würth Elektronik eiSos GmbH & Co KG products are neither designed nor intended for use in areas such as military, aerospace, aviation, nuclear control, submarine, transportation, transportation signal, disaster prevention, medical, public information network etc.. Würth Elektronik eiSos GmbH & Co KG must be informed about the intent of such usage before the design-in stage. In addition, sufficient reliability evaluation checks for safety must be performed on every electronic component which is used in electrical circuits that require high safety and reliability functions or performance. Steady State Power Dissipation Derating: Maximum Non-Repetitive Forward Surge Current: 4.0 45 3.5 40 35 3.0 Current [A] Power [W] 30 2.5 2.0 25 20 1.5 15 1.0 10 0.5 5 0.0 0 0 50 100 150 1 10 Ambient Temperature [°C] 100 Number of Cycles at 60 Hz Würth Elektronik eiSos GmbH & Co. KG EMC & Inductive Solutions Max-Eyth-Str. 1 74638 Waldenburg Germany Tel. +49 (0) 79 42 945 - 0 www.we-online.com eiSos@we-online.com CHECKED REVISION DATE (YYYY-MM-DD) GENERAL TOLERANCE PeXu 001.003 2023-11-24 DIN ISO 2768-1m PROJECTION METHOD DESCRIPTION TECHNICAL REFERENCE WE-TVSP Power TVS Diode SMAJ18A ORDER CODE 824500181 SIZE/TYPE BUSINESS UNIT STATUS PAGE DO-214AC eiSos Valid 3/9 This electronic component has been designed and developed for usage in general electronic equipment only. This product is not authorized for use in equipment where a higher safety standard and reliability standard is especially required or where a failure of the product is reasonably expected to cause severe personal injury or death, unless the parties have executed an agreement specifically governing such use. Moreover Würth Elektronik eiSos GmbH & Co KG products are neither designed nor intended for use in areas such as military, aerospace, aviation, nuclear control, submarine, transportation, transportation signal, disaster prevention, medical, public information network etc.. Würth Elektronik eiSos GmbH & Co KG must be informed about the intent of such usage before the design-in stage. In addition, sufficient reliability evaluation checks for safety must be performed on every electronic component which is used in electrical circuits that require high safety and reliability functions or performance. Typical Junction Capacitance: 10.000 Capacitance [pF] 1.000 100 10 1 1 10 100 1000 Reverse Breakdown Voltage [V] V = 0V V = VDC Würth Elektronik eiSos GmbH & Co. KG EMC & Inductive Solutions Max-Eyth-Str. 1 74638 Waldenburg Germany Tel. +49 (0) 79 42 945 - 0 www.we-online.com eiSos@we-online.com CHECKED REVISION DATE (YYYY-MM-DD) GENERAL TOLERANCE PeXu 001.003 2023-11-24 DIN ISO 2768-1m PROJECTION METHOD DESCRIPTION TECHNICAL REFERENCE WE-TVSP Power TVS Diode SMAJ18A ORDER CODE 824500181 SIZE/TYPE BUSINESS UNIT STATUS PAGE DO-214AC eiSos Valid 4/9 This electronic component has been designed and developed for usage in general electronic equipment only. This product is not authorized for use in equipment where a higher safety standard and reliability standard is especially required or where a failure of the product is reasonably expected to cause severe personal injury or death, unless the parties have executed an agreement specifically governing such use. Moreover Würth Elektronik eiSos GmbH & Co KG products are neither designed nor intended for use in areas such as military, aerospace, aviation, nuclear control, submarine, transportation, transportation signal, disaster prevention, medical, public information network etc.. Würth Elektronik eiSos GmbH & Co KG must be informed about the intent of such usage before the design-in stage. In addition, sufficient reliability evaluation checks for safety must be performed on every electronic component which is used in electrical circuits that require high safety and reliability functions or performance. Packaging Specification - Tape: [mm] Packaging Specification - Reel: [mm] P0 D0 P2 T W3 E1 A K0 W1 close to center C Top Cover Tape P1 D1 A T1 A0 T2 Feeding direction End N W A B0 E2 D F B W2 Start Carrier Tape Cover Tape detail B B Cover Tape Chip Cavity Sprocket Hole No Component min. 160mm Components No Component min. 100mm Embossment Cover Tape min. 400mm Packaging is referred to the international standard IEC 60286-3:2019 Tape Type 2a A0 (mm) typ. 2,79 B0 (mm) typ. 5,33 W (mm) +0,3/ -0,1 12,00 T (mm) ref. 0,25 T1 (mm) max. 0,10 T2 (mm) typ. 2,55 K0 (mm) typ. 2,20 P0 (mm) ±0,1 4,00 P1 (mm) ±0,1 4,00 P2 (mm) ±0,05 2,00 D0 (mm) +0,1/ -0,0 1,50 D1 (mm) min. 1,50 E1 (mm) ±0,1 1,75 E2 (mm) min. 10,25 F (mm) ±0,05 5,50 Material Qty. (pcs.) Polystyrene 1000 165° - 180° Pull-off force Tape width 12 mm 0,1 N - 1,3 N Würth Elektronik eiSos GmbH & Co. KG EMC & Inductive Solutions Max-Eyth-Str. 1 74638 Waldenburg Germany Tel. +49 (0) 79 42 945 - 0 www.we-online.com eiSos@we-online.com A (mm) ± 2,0 178,00 B (mm) min. 1,50 C (mm) min. 12,80 D (mm) min. 20,20 N (mm) min. 50,00 W1 (mm) + 2,0 12,40 W2 (mm) max. 18,40 W3 (mm) min. 11,90 CHECKED REVISION DATE (YYYY-MM-DD) GENERAL TOLERANCE PeXu 001.003 2023-11-24 DIN ISO 2768-1m W3 (mm) max. 15,40 Material Polystyrene/ Polyurethane PROJECTION METHOD DESCRIPTION TECHNICAL REFERENCE WE-TVSP Power TVS Diode SMAJ18A ORDER CODE 824500181 SIZE/TYPE BUSINESS UNIT STATUS PAGE DO-214AC eiSos Valid 5/9 This electronic component has been designed and developed for usage in general electronic equipment only. This product is not authorized for use in equipment where a higher safety standard and reliability standard is especially required or where a failure of the product is reasonably expected to cause severe personal injury or death, unless the parties have executed an agreement specifically governing such use. Moreover Würth Elektronik eiSos GmbH & Co KG products are neither designed nor intended for use in areas such as military, aerospace, aviation, nuclear control, submarine, transportation, transportation signal, disaster prevention, medical, public information network etc.. Würth Elektronik eiSos GmbH & Co KG must be informed about the intent of such usage before the design-in stage. In addition, sufficient reliability evaluation checks for safety must be performed on every electronic component which is used in electrical circuits that require high safety and reliability functions or performance. Classification Reflow Profile for SMT components: Classification Reflow Soldering Profile: Profile Feature Tp tp Max. Ramp Up Rate Max. Ramp Down Rate TL Temperature Ts max tL Preheat Area Ts min TC –5°C Value Preheat Temperature Min Ts min 150 °C Preheat Temperature Max Ts max 200 °C Preheat Time ts from Ts min to Ts max ts Ramp-up Rate (TL to TP) 60 - 120 seconds 3 °C/ second max. Liquidous Temperature TL 217 °C Time tL maintained above TL tL 60 - 150 seconds Peak package body temperature Tp Tp ≤ Tc, see Table below Time within 5°C of actual peak temperature tp 20 - 30 seconds Ramp-down Rate (TP to TL) 6 °C/ second max. Time 25°C to peak temperature 8 minutes max. refer to IPC/ JEDEC J-STD-020E tS Package Classification Reflow Temperature (Tc): Volume mm³ 350-2000 Volume mm³ >2000 PB-Free Assembly | Package Thickness 260 °C < 1.6 mm 260 °C 260 °C PB-Free Assembly | Package Thickness 260 °C 1.6 mm - 2.5 mm 250 °C 245 °C PB-Free Assembly | Package Thickness 250 °C > 2.5 mm 245 °C 245 °C Properties 25 Time 25°C to Peak Time Volume mm³