SZ1SMA20AT3G

TVS Diodes Surface Mount > 400W > 1SMA5.0AT3G Series 1SMA5.0AT3G Series Pb OBSOLETE/EOL DATE June/30/2018 PCN/ECN# LFPCN41246 REPLACED BY SMAJ Series Description The 1SMA5.0AT3G series is designed to protect voltage sensitive components from high voltage, high energy transients. They have excellent clamping capability, high surge capability, low zener impedance and fast response time. The 1SMA5.0AT3G series is supplied in the Littelfuse exclusive, cost-effective, highly reliable package and is ideally suited for use in communication systems, automotive, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial/consumer applications. Features • Working Peak Reverse Voltage Range − 5.0 V to 78 V Maximum Ratings and Thermal Characteristics Parameter • Standard Zener Breakdown Voltage Range − Symbol Value Unit PPK 400 W 6.7 V to 91.25 V • Peak Power − 400 W @ 1 ms Peak Power Dissipation (Note 1) @ TL = 25°C, Pulse Width = 1 ms • ESD Rating of Class 3 (> 16 kV) per Human Body Model • Response Time is Typically < 1 ns DC Power Dissipation @ TL = 75°C Measured Zero Lead Length (Note 2) PD Derate Above 75°C Thermal Resistance from Junction to−Lead RJL 1.0 W 20 mW/°C 50 °C/W • Flat Handling Surface for Accurate Placement • Package Design for Top Slide or Bottom Circuit Board Mounting • Low Profile Package Bi-directional • These are Pb−Free Device DC Power Dissipation (Note 3) @ TA = 25°C PD Derate Above 25°C Thermal Resistance from Junction–to– Ambient R0JA 0.5 W 4.0 mW/°C 250 °C/W Functional Diagram Cathode Forward Surge Current (Note 4) @ TA = 25°C IFSM 40 A Operating and Storage Temperature Range TJ, Tstg -65 to +150 °C Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. Anode Additional Information Uni-directional Datasheet Resources Samples 1. 10 X 1000 µs, non−repetitive. 2. 1” square copper pad, FR−4 board. 3. FR−4 board, using Littelfuse minimum recommended footprint, as shown in 403D-02 case outline dimensions spec. 4. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum. © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 TVS Diodes Surface Mount > 400W > 1SMA5.0AT3G Series I-V Curve Characteristics (T A = 25°C unless otherwise noted, VF = 3.5 V Max. @ IF = 30 A for all types) (Note 5) Symbol I IF V C V BR V RWM IR V F IT IPP V Parameter IPP Maximum Reverse Peak Pulse Current VC Clamping Voltage @ IPP VRWM Working Peak Reverse Voltage IR Maximum Reverse Leakage Current @ VRWM VBR Breakdown Voltage @ IT IT Test Current IF Maximum Temperature Coefficient of VBR VF Forward Voltage @ IF 5. 1/2 sine wave or equivalent, PW = 8.3 ms, non−repetitive duty cycle. 5. 1/2 sine wave or equivalent, PW = 8.3 ms non−repetitive duty cycle © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 TVS Diodes Surface Mount > 400W > 1SMA5.0AT3G Series Electrical Characteristics VC @ IPP Breakdown Voltage Device* Device Marking 1SMA5.0AT3G QE V RWM (Note 6) IR @ VRWM Volts µA 5.0 400 (Note 8) C Typ. VBR @ IT (V) (Note 7) @ IT VC IPP (Note 9) MIN NOM MAX mA Volts Amps pF 6.4 6.7 7.0 10 9.2 43.5 2035 1SMA6.0AT3G QG 6.0 400 6.67 7.02 7.37 10 10.3 38.8 1730 1SMA6.5AT3G QK 6.5 250 7.22 7.6 7.98 10 11.2 35.7 1605 1SMA8.0AT3G QR 8.0 25 8.89 9.36 9.83 1 13.6 29.4 1035 1SMA8.5AT3G QT 8.5 5.0 9.44 9.92 10.4 1 14.4 27.8 1265 1SMA9.0AT3G QV 9.0 2.5 10 10.55 11.1 1 15.4 26.0 1200 1SMA10AT3G QX 10 2.5 11.1 11.7 12.3 1 17.0 23.5 1090 1SMA11AT3G QZ 11 2.5 12.2 12.85 13.5 1 18.2 22.0 1000 1SMA12AT3G RE 12 2.5 13.3 14.0 14.7 1 19.9 20.1 925 1SMA13AT3G RG 13 2.5 14.4 15.15 15.9 1 21.5 18.6 860 1SMA14AT3G RH 14 2.5 15.6 16.4 17.2 1 23.2 17.2 800 1SMA15AT3G RM 15 2.5 16.7 17.6 18.5 1 24.4 16.4 758 1SMA16AT3G RP 16 2.5 17.8 18.75 19.7 1 26.0 15.4 715 1SMA17AT3G RR 17 2.5 18.9 19.9 20.9 1 27.6 14.5 680 1SMA18AT3G RT 18 2.5 20 21.05 22.1 1 29.2 13.7 645 1SMA20AT3G RV 20 2.5 22.2 23.35 24.5 1 32.4 12.3 585 1SMA22AT3G RX 22 2.5 24.4 25.65 26.9 1 35.5 11.3 540 1SMA24AT3G RZ 24 2.5 26.7 28.1 29.5 1 38.9 10.3 500 1SMA26AT3G SE 26 2.5 28.9 30.4 31.9 1 42.1 9.5 460 1SMA28AT3G SG 28 2.5 31.1 32.75 34.4 1 45.4 8.8 430 1SMA30AT3G SK 30 2.5 33.3 35.05 36.8 1 48.4 8.3 405 1SMA33AT3G SM 33 2.5 36.7 38.65 40.6 1 53.3 7.5 375 1SMA36AT3G SP 36 2.5 40 42.1 44.2 1 58.1 6.9 345 1SMA40AT3G SR 40 2.5 44.4 46.75 49.1 1 64.5 6.2 315 1SMA43AT3G ST 43 2.5 47.8 50.3 52.8 1 69.4 5.8 295 1SMA45AT3G SV 45 2.5 50 52.65 55.3 1 72.2 5.5 280 1SMA48AT3G SX 48 2.5 53.3 56.1 58.9 1 77.4 5.2 265 1SMA54AT3G TE 54 2.5 60 63.15 66.3 1 87.1 4.6 240 1SMA58AT3G TG 58 2.5 64.4 67.8 71.5 1 93.6 4.3 225 1SMA70AT3G TP 70 2.5 77.8 81.9 86.0 1 113 3.5 190 6. A transient suppressor is normally selected according to the working peak reverse voltage (VRWM), which should be equal to or greater than the DC or continuous peak operating voltage level. 7. VBR measured at pulse test current IT at an ambient temperature of 25°C. 8. Surge current waveform per Figure 2 and derate per Figure 3. 9. Bias voltage = 0 V, F = 1.0 MHz, TJ = 25°C. †Please see 1SMA10CAT3 to 1SMA75CAT3 for Bidirectional devices. © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 TVS Diodes Surface Mount > 400W > 1SMA5.0AT3G Series Ratings and Characteristic Curves Figure 1. Pulse Rating Curve Figure 2. Pulse Waveform Ppk, PEAK POWER (kW) 100 NONREPETITIVE PULSE WAVEFORM SHOWN IN FIGURE 2. TA = 25°C 10 1 0.1 10 4 0.001 0.11 0.01 tP, PULSE WIDTH (ms) 10 Figure 3 - Pulse Derating Curve Figure 4. Typical Junction Capacitance vs. Bias Voltage C, CAPACITANCE (pF) 10,000 TJ = 25°C F = 1 MHz 1SMA5.0AT3G 1,000 1SMA10AT3G 1SMA36AT3G 100 1SMA64AT3G 10 1 1 10 BIAS VOLTAGE (VOLTS) PD, MAXIMUM POWER DISSIPATION (WATTS) Figure 5. Steady State Power Derating 6 5 4 @ TL = 75°C PD = 1.5 W 3 2 @ TA = 25°C PD = 0.5 W 1 0 0 25 50 100 75 T, TEMPERATURE (°C) 125 150 © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 100 TVS Diodes Surface Mount > 400W > 1SMA5.0AT3G Series Dimensions Soldering Footrpint HE 4.000 0.157 E bD D 2.000 0.079 POLARITY INDICATOR OPTIONAL AS NEEDED (SEE STYLES) A c L 2.000 0.079 A1 SCALE 8:1 Dim Inches mm inches Millimeters Min Nom Max Min Nom Max A 0.078 0.083 0.087 1.97 2.10 2.20 A1 0.002 0.004 0.008 0.05 0.10 0.20 b 0.050 0.057 0.064 1.27 1.45 1.63 c 0.006 0.011 0.016 0.15 0.28 0.41 D 0.090 0.103 0.115 2.29 2.60 2.92 E 0.160 0.170 0.180 4.06 4.32 4.57 HE 0.190 0.205 0.220 4.83 5.21 5.59 L 0.030 0.045 0.060 0.76 1.14 1.52 NOTES: ORDERING INFORMATION Device Package Shipping† SMA (Pb−Free) 1SMAxxAT3G 5,000 / Tape & Reel Flow/Wave Soldering (Solder Dipping) Peak Temperature : 260OC Dipping Time : 10 seconds 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION b SHALL BE MEASURED WITHIN DIMENSION L. Physical Specifications STYLE 1: PIN 1. CATHODE (POLARITY BAND) 2. ANODE Case Void-free, transfer-molded, thermosetting plastic Polarity Cathode indicated by molded polarity notch Mounting Position Any Finish All external surfaces are corrosion resistant and leads are readily solderable Part Marking System xx WW AY xx A= Y= WW = Device Code (Refer to page 3) Assembly Location Year = Work Week 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: www.littelfuse.com/disclaimer-electronics. © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17