Transient Voltage Suppression Diodes Surface Mount – 400W > SMAJ series RoHS Pb Description The SMAJ series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. Features Agency Approvals AGENCY AGENCY FILE NUMBER E230531 Maximum Ratings and Thermal Characteristics (TA=25OC unless otherwise noted) Parameter • Halogen-Free • RoHS compliant • For surface mounted applications to optimize board space • Low profile package • Built-in strain relief • Glass passivated junction • Low inductance • Excellent clamping capability • 400W Peak Pulsepower capability at 10 x 1000µs waveform, repetition rate (duty cycle): 0.01% • Fast response time: typically less than 1.0ps from 0 Volts to VBR min • Typical IR less than 1µA above 12V • High temperature soldering: 260°C/40 seconds at terminals • Typical maximum temperature coefficient ΔVBR = 0.1% x VBR@25°C x ΔT • Plastic package has Underwriters Laboratory Flammability 94V-O • Matte Tin Lead–free Plated Symbol Value Unit Peak Pulse Power Dissipation at TA=25ºC by 10x1000µs waveform (Fig.1)(Note 1), (Note 2) PPPM 400 W Power Dissipation on infinite heat sink at TA=50OC PM(AV) 3.3 W Applications Peak Forward Surge Current, 8.3ms Single Half Sine Wave (Note 3) IFSM 40 A Maximum Instantaneous Forward Voltage at 25A for Unidirectional only (Note 4) TVS devices are ideal for the protection of I/O Interfaces, VCC bus and other vulnerable circuits used in Telecom, Computer, Industrial and Consumer electronic applications. VF 3.5V/6.5 V TJ , TSTG -65 to 150 °C Typical Thermal Resistance Junction to Lead RuJL 30 °C/W Typical Thermal Resistance Junction to Ambient RuJA 120 °C/W Operating Junction and Storage Temperature Range Notes: 1. Non-repetitive current pulse, per Fig.3 and derated above TA=25ºC per Fig. 2. 2.Mounted on 5.0x5.0mm copper pad to each terminal. 3.Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional device only. _ 200V and VF< 6.5V for VBR > _ 201V. 4.VF < 3.5V for VBR < SMAJ Series 1 Revision: November 17, 2011, 16:25 ©2011 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.Littelfuse.com/series/SMAJ.html for current information. SMAJ Series SMAJ Series Transient Voltage Suppression Diodes Surface Mount – 400W > SMAJ series Electrical Characteristics Part Number (Uni) Part Number (Bi) SMAJ5.0A SMAJ6.0A SMAJ6.5A SMAJ7.0A SMAJ7.5A SMAJ8.0A SMAJ8.5A SMAJ9.0A SMAJ10A SMAJ11A SMAJ12A SMAJ13A SMAJ14A SMAJ15A SMAJ16A SMAJ17A SMAJ18A SMAJ20A SMAJ22A SMAJ24A SMAJ26A SMAJ28A SMAJ30A SMAJ33A SMAJ36A SMAJ40A SMAJ43A SMAJ45A SMAJ48A SMAJ51A SMAJ54A SMAJ58A SMAJ60A SMAJ64A SMAJ70A SMAJ75A SMAJ78A SMAJ85A SMAJ90A SMAJ100A SMAJ110A SMAJ120A SMAJ130A SMAJ150A SMAJ160A SMAJ170A SMAJ180A SMAJ200A SMAJ220A SMAJ250A SMAJ300A SMAJ350A SMAJ400A SMAJ440A SMAJ5.0CA SMAJ6.0CA SMAJ6.5CA SMAJ7.0CA SMAJ7.5CA SMAJ8.0CA SMAJ8.5CA SMAJ9.0CA SMAJ10CA SMAJ11CA SMAJ12CA SMAJ13CA SMAJ14CA SMAJ15CA SMAJ16CA SMAJ17CA SMAJ18CA SMAJ20CA SMAJ22CA SMAJ24CA SMAJ26CA SMAJ28CA SMAJ30CA SMAJ33CA SMAJ36CA SMAJ40CA SMAJ43CA SMAJ45CA SMAJ48CA SMAJ51CA SMAJ54CA SMAJ58CA SMAJ60CA SMAJ64CA SMAJ70CA SMAJ75CA SMAJ78CA SMAJ85CA SMAJ90CA SMAJ100CA SMAJ110CA SMAJ120CA SMAJ130CA SMAJ150CA SMAJ160CA SMAJ170CA SMAJ180CA SMAJ200CA SMAJ220CA SMAJ250CA SMAJ300CA SMAJ350CA SMAJ400CA SMAJ440CA Marking UNI BI AE AG AK AM AP AR AT AV AX AZ BE BG BK BM BP BR BT BV BX BZ CE CG CK CM CP CR CT CV CX CZ RE RG RK RM RP RR RT RV RX RZ SE SG SK SM SP SR ST SV SX SZ TE TG TK TM WE WG WK WM WP WR WT WV WX WZ XE XG XK XM XP XR XT XV XX XZ YE YG YK YM YP YR YT YV YX YZ ZE ZG ZK ZM ZP ZR ZT ZV ZX ZZ VE VG VK VM VP VR VT VV VX VZ UE UG UK UM Reverse Stand off Voltage VR (Volts) 5.0 6.0 6.5 7.0 7.5 8.0 8.5 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 33.0 36.0 40.0 43.0 45.0 48.0 51.0 54.0 58.0 60.0 64.0 70.0 75.0 78.0 85.0 90.0 100.0 110.0 120.0 130.0 150.0 160.0 170.0 180.0 200.0 220.0 250.0 300.0 350.0 400.0 440.0 Breakdown Voltage VBR (Volts) @ IT MIN MAX Test Current IT (mA) 6.40 6.67 7.22 7.78 8.33 8.89 9.44 10.00 11.10 12.20 13.30 14.40 15.60 16.70 17.80 18.90 20.00 22.20 24.40 26.70 28.90 31.10 33.30 36.70 40.00 44.40 47.80 50.00 53.30 56.70 60.00 64.40 66.70 71.10 77.80 83.30 86.70 94.40 100.00 111.00 122.00 133.00 144.00 167.00 178.00 189.00 201.00 224.00 246.00 279.00 335.00 391.00 447.00 492.00 7.00 7.37 7.98 8.60 9.21 9.83 10.40 11.10 12.30 13.50 14.70 15.90 17.20 18.50 19.70 20.90 22.10 24.50 26.90 29.50 31.90 34.40 36.80 40.60 44.20 49.10 52.80 55.30 58.90 62.70 66.30 71.20 73.70 78.60 86.00 92.10 95.80 104.00 111.00 123.00 135.00 147.00 159.00 185.00 197.00 209.00 222.00 247.00 272.00 309.00 371.00 432.00 494.00 543.00 10 10 10 10 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Maximum Maximum Maximum Agency Clamping Peak Reverse Approval Voltage VC Pulse Leakage IR @ Ipp Current Ipp @ VR (V) (A) (µA) 9.2 10.3 11.2 12.0 12.9 13.6 14.4 15.4 17.0 18.2 19.9 21.5 23.2 24.4 26.0 27.6 29.2 32.4 35.5 38.9 42.1 45.4 48.4 53.3 58.1 64.5 69.4 72.7 77.4 82.4 87.1 93.6 96.8 103.0 113.0 121.0 126.0 137.0 146.0 162.0 177.0 193.0 209.0 243.0 259.0 275.0 292.0 324.0 356.0 405.0 486.0 567.0 648.0 713.0 43.5 38.8 35.7 33.3 31.0 29.4 27.8 26.0 23.5 22.0 20.1 18.6 17.2 16.4 15.4 14.5 13.7 12.3 11.3 10.3 9.5 8.8 8.3 7.5 6.9 6.2 5.8 5.5 5.2 4.9 4.6 4.3 4.1 3.9 3.5 3.3 3.2 2.9 2.7 2.5 2.3 2.1 1.9 1.6 1.5 1.5 1.4 1.2 1.1 1.0 0.8 0.7 0.6 0.6 800 800 500 200 100 50 20 10 5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 For bidirectional type having VRWM of 10 volts and less, the IR limit is double. For parts without A (VBR is ± 10% and VC is 5% higher than with A parts). SMAJ Series 2 Revision: November 17, 2011, 16:25 ©2011 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.Littelfuse.com/series/SMAJ.html for current information. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Transient Voltage Suppression Diodes Surface Mount – 400W > SMAJ series Ratings and Characteristic Curves (T =25°C unless otherwise noted) A Figure 1 - Peak Pulse Power Rating Curve Figure 2 - Pulse Derating Curve 100 Peak Pulse Power (PPP) or Current (IPP) Derating in Percentage % PPPM-Peak Pulse Power (kW) 10 1 0.2x0.2" (5.0x5.0mm) Copper Pad Area 0.1 0.000001 0.00001 0.0001 0.001 80 60 40 20 0 0 25 td-Pulse Width (sec.) 50 75 100 125 150 175 TA-Ambient temperature (ºC) Figure 4 - Typical Junction Capacitance Figure 3 - Pulse Waveform tr=10µsec TJ=25°C Pulse Width(td) is defined as the point where the peak current decays to 50% of IPPM Peak Value IPPM 100 10000 Bi-directional V=0V 1000 Half Value IPPM IPPM Cj (pF) IPPM- Peak Pulse Current, % IRSM 150 ( ) 2 50 0 Uni-directional @VR 100 Bi-directional @VR 10/1000µsec. Waveform as defined by R.E.A 10 td 1 1.0 0 2.0 3.0 Uni-directional V=0V 4.0 Tj=25ºC f=1.0MHz Vsig=50mVp-p 1.0 100.0 1000.0 Figure 6 - Maximum Non-Repetitive Forward Surge Current Uni-Directional Only 3.6 45 IFSM - Peak Forward Surve Current (A) PM(AV), Steady State Power Dissipation (W) Figure 5 - Steady State Power Dissipation Derating Curve 3.0 2.4 1.8 1.2 0.6 0 0 SMAJ Series 10.0 VBR - Reverse Breakdown Voltage (V) t-Time (ms) 25 50 75 100 125 150 TA - Ambient Temperature (ºC) 175 3 Revision: November 17, 2011, 16:25 40 35 30 25 20 15 10 5 0 1 10 100 Number of Cycles at 60 Hz ©2011 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.Littelfuse.com/series/SMAJ.html for current information. Transient Voltage Suppression Diodes Surface Mount – 400W > SMAJ series Soldering Parameters Lead–free assembly Pre Heat - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) 200°C - Time (min to max) (ts) 60 – 180 secs Ramp-up TL Average ramp up rate (Liquidus Temp (TL) to peak 3°C/second max TS(max) to TL - Ramp-up Rate 3°C/second max Reflow - Temperature (TL) (Liquidus) 217°C - Time (min to max) (ts) 60 – 150 seconds Peak Temperature (TP) 260 20 – 40 seconds Critical Zone TL to TP tL Ts(max) Ramp-down Ts(min) ts Preheat 25˚C Time within 5°C of actual peak Temperature (tp) +0/-5 tp TP Temperature (T) Reflow Condition t 25˚C to Peak Time (t) °C Ramp-down Rate 6°C/second max Time 25°C to peak Temperature (TP) 8 minutes Max. Do not exceed 280°C Physical Specifications Environmental Specifications Weight 0.002 ounce, 0.061 gram Temperature Cycle JESD22-A104 Case JEDEC DO-214AC Molded Plastic over glass passivated junction Pressure Cooker JESD22-A102 Polarity Color band denotes cathode except Bipolar High Temp. Storage JESD22-A103 Terminal Matte Tin-plated leads, Solderable per JESD22-B102D HTRB JESD22-A108 Thermal Shock JESD22-A106 Dimensions DO-214AC (SMA) Dimensions Cathode Band C A B H D F E G J K L I Solder Pads SMAJ Series (all dimensions in mm) 4 Revision: November 17, 2011, 16:25 Inches Millimeters Min Max Min Max A 0.049 0.065 1.250 1.650 B 0.157 0.177 3.990 4.500 C 0.100 0.110 2.540 2.790 D 0.078 0.090 1.980 2.290 E 0.030 0.060 0.780 1.520 F - 0.008 - 0.203 G 0.194 0.208 4.930 5.280 H 0.006 0.012 0.152 0.305 I 0.070 - 1.800 - J 0.082 - 2.100 - K - 0.090 - 2.300 L 0.082 - 2.100 - ©2011 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.Littelfuse.com/series/SMAJ.html for current information. Transient Voltage Suppression Diodes Surface Mount – 400W > SMAJ series Part Numbering System Part Marking System Cathode Band SMAJ XXX C A XX XXXXX 5% VOLTAGE TOLERANCE BI-DIRECTIONAL F VOLTAGE Littelfuse Logo Marking Code SERIES Trace Code Marking Packaging Part number Component Package SMAJ-xxxXX DO-214AC Packaging Option Quantity 5000 Tape & Reel - 12mm/13” tape Packaging Specification EIA STD RS-481 Tape and Reel Specification 0.157 (4.0) 0.47 (12.0) Cathode 0.157 (4.0) 0.059 DIA (1.5) Cover tape 13.0 (330) 0.80 (20.2) Arbor Hole Dia. 0.49 (12.5) SMAJ Series Dimensions are in inches (and millimeters). Direction of Feed 5 Revision: November 17, 2011, 16:25 ©2011 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.Littelfuse.com/series/SMAJ.html for current information.