SMAJ Series Description SMAJ series designed specifically protect
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Surface Mount 400W SMAJ series
SMAJ Series
Description SMAJ series designed specifically protect sensitive electronic equipment from voltage transients induced lightning other transient voltage events. Features typically less than 1.0ps from Volts less than above soldering: 260°C/40 seconds terminals temperature coefficient capability
0.1% VBR@25°C
applications optimize board space Agency Approvals
AGENCY AGENCY FILE NUMBER E230531
Maximum Ratings Thermal Characteristics (TA=25OC unless otherwise noted)
Parameter Peak Pulse Power Dissipation 10x1000s waveform (Fig.1)(Note (Note Power Dissipation infinite heat sink TA=50OC Peak Forward Surge Current, 8.3ms Single Half Sine Wave (Note Maximum Instantaneous Forward Voltage Unidirectional only (Note Operating Junction Storage Temperature Range Typical Thermal Resistance Junction Lead Typical Thermal Resistance Junction Ambient Symbol PPPM PM(AV) IFSM TSTG RuJL RuJA Value 3.5V/6.5 Unit °C/W °C/W
capability 1000s waveform, repetition rate (duty cycle): 0.01%
Underwriters Laboratory Flammability 94V-O Plated
Applications devices ideal protection Interfaces, other vulnerable circuits used Telecom, Computer, Industrial Consumer electronic applications.
Notes: Non-repetitive current pulse, Fig.3 derated above Fig. Mounted 5.0x5.0mm copper each terminal. Measured 8.3ms single half sine wave equivalent square wave unidirectional device only. 3.5V 200V 6.5V 201V.
©2009 Littelfuse, Inc. Specifications subject change without notice. Please refer current information.
Revision: January 2009
SMAJ Series
SMAJ Series
Surface Mount 400W SMAJ series
Electrical Characteristics
Part Number (Uni)
SMAJ5.0A SMAJ6.0A SMAJ6.5A SMAJ7 SMAJ7 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
Part Number (Bi)
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
Reverse Stand Voltage (Volts)
10.0 11.0 12.0 13.0 14.0 15.0 16.0 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 (Volts)
6.40 6.67 8.33 8.89 9.44 10.00 11.10 12.20 13.30 14.40 15.60 16.70 18.90 20.00 22.20 24.40 26.70 28.90 31.10 33.30 36.70 40.00 44.40 50.00 53.30 56.70 60.00 64.40 66.70 71.10 83.30 86.70 94.40 100.00 111.00 122.00 133.00 144.00 178.00 189.00 201.00 224.00 246.00 279.00 335.00 391.00 492.00
8.60 9.21 9.83 10.40 11.10 12.30 13.50 14.70 15.90 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 95.80 104.00 111.00 123.00 135.00 159.00 185.00 209.00 222.00 272.00 309.00 371.00 432.00 494.00 543.00
Test Current (mA)
Maximum Maximum Maximum Agency Clamping Peak Reverse Approval Voltage Pulse Leakage Current
10.3 11.2 12.0 12.9 13.6 14.4 15.4 18.2 19.9 21.5 23.2 24.4 26.0 29.2 32.4 35.5 38.9 42.1 45.4 48.4 53.3 58.1 64.5 69.4 72.7 82.4 93.6 96.8 103.0 113.0 121.0 126.0 146.0 162.0 193.0 209.0 243.0 259.0 275.0 292.0 324.0 356.0 405.0 486.0 648.0 713.0 43.5 38.8 35.7 33.3 31.0 29.4 26.0 23.5 22.0 20.1 18.6 16.4 15.4 14.5 13.7 12.3 11.3 10.3
bidirectional type having VRWM volts less, limit double. parts without (VBR higher than with parts). SMAJ Series Revision: January 2009 ©2009 Littelfuse, Inc. Specifications subject change without notice. Please refer current information.
Surface Mount 400W SMAJ series
Ratings Characteristic Curves =25°C unless otherwise noted)
Peak Pulse Power (PPP) Current (IPP) Derating Percentage PPPM-Peak Pulse Power (kW)
0.2x0.2" (5.0x5.0mm) Copper Area
0.000001
0.00001 0.0001 0.001 td-Pulse Width (sec.) TA-Ambient temperature
Figure Pulse Waveform
IPPM- Peak Pulse Current, IRSM tr=10sec Peak Value IPPM
TJ=25°C Pulse Width(td) defined point where peak current decays IPPM
Figure Typical Junction Capacitance
10000
Bi-directional V=0V
1000
Uni-directional V=0V
10/1000sec. Waveform defined R.E.A
(pF)
Half Value IPPM IPPM
Uni-directional
Bi-directional
f=1.0MHz Vsig=50mVp-p
t-Time (ms)
10.0
100.0
1000.0
Reverse Breakdown Voltage
Figure Steady State Power Dissipation Derating Curve
PM(AV), Steady State Power Dissipation
Figure Maximum Non-Repetitive Forward Surge Current Uni-Directional Only
IFSM Peak Forward Surve Current Number Cycles
Ambient Temperature
©2009 Littelfuse, Inc. Specifications subject change without notice. Please refer current information.
Revision: January 2009
SMAJ Series
SMAJ Series
Figure Peak Pulse Power Rating Curve
Figure Pulse Derating Curve
Surface Mount 400W SMAJ series
Soldering Parameters
Reflow Condition
Ramp-up Critical Zone
Temperature (Ts(min)) Heat Temperature (Ts(max)) Time (min max) (ts) Average ramp rate (Liquidus Temp (TL) peak TS(max) Ramp-up Rate Reflow Temperature (TL) (Liquidus) Time (min max) (ts)
150°C 200°C
Temperature
Ts(max)
3°C/second 3°C/second 217°C
+0/-5
Ramp-down
Ts(min)
Preheat
25°C 25°C Peak
Time
Peak Temperature (TP) Time within actual peak Temperature (tp) Ramp-down Rate Time 25°C peak Temperature (TP) exceed
6°C/second minutes Max. 280°C
Physical Specifications
Weight Case Polarity Terminal 0.002 ounce, 0.061 gram JEDEC DO-214AC Molded Plastic over glass passivated junction Color band denotes cathode except Bipolar Matte Tin-plated leads, Solderable JESD22-B102D
Environmental Specifications
Temperature Cycle Pressure Cooker High Temp. Storage HTRB Thermal Shock JESD22-A104 JESD22-A102 JESD22-A103 JESD22-A108 JESD22-A106
Dimensions
DO-214AC (SMA)
Cathode Band
Dimensions
Inches 0.049 0.157 0.100 0.078 0.030 0.194 0.006 0.070 0.082 0.082 0.065 0.177 0.110 0.090 0.060 0.008 0.208 0.012 0.090
Millimeters 1.250 3.990 2.540 1.980 0.780 4.930 0.152 1.800 2.100 2.100 1.650 4.500 2.790 2.290 1.520 0.203 5.280 0.305 2.300 ©2009 Littelfuse, Inc.
SMAJ Series
Revision: January 2009
Specifications subject change without notice. Please refer current information.
Surface Mount 400W SMAJ series
Part Numbering System
SMAJ
Part Marking System
Cathode Band
VOLTAGE TOLERANCE BI-DIRECTIONAL VOLTAGE SERIES
Littelfuse Logo Marking Code
Packaging
Part number SMAJxxxXX Component Package DO-214AC Quantity 5000 Packaging Option Packaging Specification RS-481
©2009 Littelfuse, Inc. Specifications subject change without notice. Please refer current information.
Revision: January 2009
SMAJ Series
SMAJ Series
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