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SMAJ5.0 THRU SMAJ170CA
SURFACE MOUNT TRANSZORBTM TRANSIENT VOLTAGE SUPPRESSOR
Stand-off Voltage - 5.0 to 170 Volts Peak Pulse Power - 300 Watts
FEATURES
DO-214AC
0.065 (1.65) 0.049 (1.25)
0.110 (2.79) 0.100 (2.54)
0.177 (4.50) 0.157 (3.99) 0.012 (0.305) 0.006 (0.152)
0.090 (2.29) 0.078 (1.98)
Optimized for LAN protection applications Ideal for ESD protection of data lines in accordance with IEC 1000-4-2 (IEC801-2) Ideal for EFT protection of data lines in accordance with IEC1000-4-4 (IEC801-4) Plastic package has Underwriters Laboratory Flammability Classification 94V-0 Glass passivated junction Excellent clamping capability Low incremental surge resistance Fast response time: typically less than 1.0ps from 0 Volts to V(BR) min. 300W peak pulse power capability with a 10/1000s waveform, repetition rate (duty cycle): 0.01% High temperature soldering guaranteed: 250C/10 seconds at terminals
0.060 (1.52) 0.030 (0.76) 0.008 (0.203) MAX. 0.208 (5.28) 0.194 (4.93)
MECHANICAL DATA
Case: JEDEC DO-214AC molded plastic body over passivated chip Terminals: Solder plated, solderable per MIL-STD-750, Method 2026 Polarity: For uni-directional types the color band denotes the cathode, which is postitive with respect to the anode under normal TVS operation Mounting Position: Any Weight: 0.002 ounces, 0.064 gram
Dimensions in inches and (millimeters)
DEVICES FOR BIDIRECTIONAL APPLICATIONS
For bi-directional use suffix C or CA for types SMAJ5.0 thru SMAJ170 (e.g. SMAJ5.0C, SMAJ170CA) Electrical characteristics apply in both directions.
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25C ambient temperature unless otherwise specified.
SYMBOLS
VALUE
UNITS
Peak pulse power dissipation with a 10/1000s waveform (NOTE 1, 2, FIG.1) Peak pulse current with a 10/1000s waveform (NOTE 1) Peak forward surge current 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) (NOTES 2, 3) - unidirectional only Maximum instantaneous forward voltage at 25A (NOTE 3) Operating junction and storage temperature range
NOTES: (1) Non-repetitive current pulse, per Fig.3 and derated above TA=25C per Fig. 2 (2) Mounted on 0.2 x 0.2" (5.0 x 5.0mm) copper pads to each terminal (3) Measured on 8.3ms single half sine-wave. For uni-directional devices only.
PPM IPPM IFSM VF TJ, TSTG
Minimum 300
SEE TABLE 1
Watts Amps Amps Volts C
40.0 3.5 -55 to +150
1/20/99
ELECTRICAL CHARACTERISTICS (TA=25C unless otherwise noted) TABLE 1
Device Marking Code Device SMAJ5.0 SMAJ5.0A SMAJ6.0 SMAJ6.0A SMAJ6.5 SMAJ6.5A SMAJ7.0 SMAJ7.0A SMAJ7.5 SMAJ7.5A SMAJ8.0 SMAJ8.0A SMAJ8.5 SMAJ8.5A SMAJ9.0 SMA J9.0A SMAJ10 SMAJ10A SMAJ11 SMAJ11A SMAJ12 SMAJ12A SMAJ13 SMAJ13A SMAJ14 SMAJ14A SMAJ15 SMAJ15A SMAJ16 SMAJ16A SMAJ17 SMAJ17A SMAJ18 SMAJ18A SMAJ20 SMAJ20A SMAJ22 SMAJ22A SMAJ24 SMAJ24A SMAJ26 SMAJ26A SMAJ28 SMAJ28A SMAJ30 SMAJ30A SMAJ33 SMAJ33A SMAJ36 SMAJ36A SMAJ40 SMAJ40A SMAJ43 SMAJ43A SMAJ45 SMAJ45A SMAJ48 SMAJ48A SMAJ51 SMAJ51A UNI AD AE AF AG AH AK AL AM AN AP AQ AR AS AT AU AV AW AX AY AZ BD BE BF BG BH BK BL BM BN BP BQ BR BS BT BU BV BW BX BY BZ CD CE CF CG CH CK CL CM CN CP CQ CR CS CT CU CV CW CX CY CZ BI WD WE WF WG WH WK WL WM WN WP WQ WR WS WT WU WV WW WX WY WZ XD XE XF XG XH XK XL XM XN XP XQ XR XS XT XU XV XW XX XY XZ YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YU YV YW YX YY YZ Breakdown Voltage V(BR) (Volts) at IT
(NOTE 1) Min. Max.
Test Current IT (mA) 10 10 10 10 10 10 10 10 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Working Peak Reverse Voltage VWM (Volts) 5.0 5.0 6.0 6.0 6.5 6.5 7.0 7.0 7.5 7.5 8.0 8.0 8.5 8.5 9.0 9.0 10.0 10.0 11.0 11.0 12.0 12.0 13.0 13.0 14.0 14.0 15.0 15.0 16.0 16.0 17.0 17.0 18.0 18.0 20.0 20.0 22.0 22.0 24.0 24.0 26.0 26.0 28.0 28.0 30.0 30.0 33.0 33.0 36.0 36.0 40.0 40.0 43.0 43.0 45.0 45 48 48 51 51
Maximum Reverse Leakage a VWM (NOTE 3) ID (A) 800 800 800 800 500 500 200 200 100 100 50.0 50.0 10.0 10.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Maximum Peak Pulse Surge Current IPPM (NOTE 2) (Amps) 31.3 32.6 26.3 29.1 24.4 26.8 22.6 25.0 21.0 23.3 20.0 22.1 18.9 20.8 17.8 19.5 16.0 17.6 14.9 16.5 13.6 15.1 12.6 14.0 11.6 12.9 11.2 12.3 10.4 11.5 9.8 10.9 9.3 10.3 8.4 9.3 7.6 8.5 7.0 7.7 6.4 7.1 6.0 6.6 5.6 6.2 5.1 5.6 4.7 5.2 4.2 4.7 3.9 4.3 80.3 72.7 85.5 77.4 91.1 82.4
Maximum Clamping Voltage at IPPM Vc (Volts) 9.6 9.2 11.4 10.3 12.3 11.2 13.3 12.0 14.3 12.9 15.0 13.6 15.9 14.4 16.9 15.4 18.8 17.0 20.1 18.2 22.0 19.9 23.8 21.5 25.8 23.2 26.9 24.4 28.8 26.0 30.5 27.6 32.2 29.2 35.8 32.4 39.4 35.5 43.0 38.9 46.6 42.1 50.0 45.4 53.5 48.4 59.0 53.3 64.3 58.1 71.4 64.5 76.7 69.4 3.7 4.1 3.5 3.9 3.3 3.6
6.4 6.4 6.67 6.67 7.22 7.22 7.78 7.78 8.33 8.33 8.89 8.89 9.44 9.44 10.0 10.0 11.1 11.1 12.2 12.2 13.3 13.3 14.4 14.4 15.6 15.6 16.7 16.7 17.8 17.8 18.9 18.9 20.0 20.0 22.2 22.2 24.4 24.4 26.7 26.7 28.9 28.9 31.1 31.1 33.3 33.3 36.7 36.7 40.0 40.0 44.4 44.4 47.8 47.8 50.0 50.0 53.3 53.3 56.7 56.7
7.82 7.07 8.15 7.37 8.82 7.98 9.51 8.6 10.3 9.21 10.9 9.83 11.5 10.4 12.2 11.1 13.6 12.3 14.9 13.5 16.3 14.7 17.6 15.9 19.1 17.2 20.4 18.5 21.8 19.7 23.1 20.9 24.4 22.1 27.1 24.5 29.8 26.9 32.6 29.5 35.3 31.9 38.0 34.4 40.7 36.8 44.9 40.6 48.9 44.2 54.3 49.1 58.4 52.8 61.1 55.3 65.1 58.9 69.3 62.7
ELECTRICAL CHARACTERISTICS (TA=25C unless otherwise noted) TABLE 1 (Cont'd)
Device Marking Code Device SMAJ54 SMAJ54A SMAJ58 SMAJ58A SMAJ60 SMAJ60A SMAJ64 SMAJ64A SMAJ70 SMAJ70A SMAJ75 SMAJ75A SMAJ78 SMAJ78A SMAJ85 SMAJ85A SMAJ90 SMAJ90A SMAJ100 SMAJ100A SMAJ110 SMAJ110A SMAJ120 SMAJ120A SMAJ130 SMAJ130A SMAJ150 SMAJ150A SMAJ160 SMAJ160A SMAJ170 SMAJ170A UNI RD RE RF RG RH RK RL RM RN RP RQ RR RS RT RU RV RW RX RY RZ SD SE SF SG SH SK SL SM SN SP SQ SR BI ZD ZE ZF ZG ZH ZK ZL ZM ZN ZP ZQ ZR ZS ZT ZU ZV ZW ZX ZY ZZ VD VE VF VG VH VK VL VM VN VP VQ VR Breakdown Voltage V(BR) (Volts) at IT
(NOTE 1) Min. Max.
Test Current IT (mA) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1 1.0
Working Peak Reverse Voltage VWM (Volts) 54 54 58 58 60 60 64 64 70 70 75 75 78 78 85 85 90 90 100 100 110 110 120 120 130 130 150 150 160 160 170 170
Maximum Reverse Leakage a VWM (NOTE 3) ID (A) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Maximum Peak Pulse Surge Current IPPM (NOTE 2) (Amps) 96.3 87.1 103 93.6 107 96.8 114 103 125 113 134 121 139 126 151 137 160 146 179 162 196 177 214 193 231 209 268 243 287 259 304 275
Maximum Clamping Voltage at IPPM Vc (Volts) 3.1 3.4 2.9 3.2 2.8 3.1 2.6 2.9 2.4 2.7 2.2 2.5 2.2 2.4 2 2.2 1.9 2.1 1.7 1.9 1.5 1.7 1.4 1.6 1.3 1.4 1.1 1.2 1.0 1.2 0.99 1.09
60.0 60.0 64.4 64.4 66.7 66.7 71.1 71.1 77.8 77.8 83.3 83.3 86.7 86.7 94.4 94.4 100 100 111 111 122 122 133 133 144 144 167 167 178 178 189 189
73.3 66.3 78.7 71.2 81.5 73.7 86.4 78.6 95.1 86 102 92.1 106 95.8 115 104 122 111 136 123 149 135 163 147 176 159 204 185 218 197 231 209
NOTES: (1) V(BR) measured after IT applied for 300s square wave pulse or equivalent (2) Surge current waveform per Fig. 3 and derate per Fig. 2 (3) For bi-directional types having VWM of 10 Volts and less, the ID limit is doubled (4) For the bi-directional SMAJ5.0CA, the maximum V(BR) is 7.25V. (5) All terms and symbols are consistent with ANSI/IEEE C62.35
APPLICATION NOTES RECOMMENDED PAD LAYOUT
The pad dimensions should be 0.010" (2.5mm) longer than the contact size in the lead axis. This allows a solder fillet to form, see figure below. Contact factory for soldering methods. This device is designed specifically for transient voltage suppression from threats generated by ESD for board level load switching components. The wide leads assure a large surface contact for good heat dissipation, and a low resistance path for surge current flow to ground. This series is designed to optimize board space and for use with surface mount technology automated assembly equipment. They can be easily mounted on printed circuit boards and ceramic substrates to protect sensitive components from transient voltage damage.
MODIFIED J-BEND
0.060 MIN (1.52 MIN) 0.094 MAX (2.38 MAX)
0.050 MIN (1.27 MIN)
Dimensions in inches and (millimeters) (5.58)
0.220 REF
MAXIMUM RATINGS AND CHARACTERISTIC CURVES SMAJ5.0 THRU SMAJ170CA
FIG. 1 - PEAK PULSE POWER RATING CURVE PPPM, PEAK PULSE POWER, kW
NON-REPETITIVE PULSE WAVEFORM SHOWN in FIG. 3 TA=25C
PEAK PULSE POWER (Ppp) or CURRENT (IPPM) DERATING IN PERCENTAGE, %
100
FIG. 2 - PULSE DERATING CURVE
100
10
75
1.0
50
0.2 x 0.2" (5.0 x 5.0mm) COPPER PAD AREAS
25
0.2 x 0.2" (5.0 x 5.0mm) COPPER PAD AREAS
0.1 0.1ms
1.0ms
10ms
100ms
1.0ms
10ms
td, PULSE WIDTH, sec.
0
0
25
50
75
100
125
150
175
TA, AMBIENT TEMPERATURE, C
FIG. 4 - TYPICAL JUNCTION CAPACITANCE FIG. 3 - PULSE WAVEFORM
10,000
TJ=25C f=1.0 MHZ Vsig=50mVp-p Measured at Stand-off Voltage, VWM
150
IPPM, PEAK PULSE CURRENT, % CJ, JUNCTION CAPACITANCE, pF
PULSE WIDTH (td) is DEFINED as the POINT WHERE the PEAK CURRENT DECAYS to 50% of IPPM
tr=10sec.
100
PEAK VALUE IPPM HALF VALUE - IPPM 2
1,000
UNI-DIRECTIONAL
50
10/1000sec. WAVEFORM as DEFINED by R.E.A.
100
BI-DIRECTIONAL
0
td
0
1.0
2.0
t, TIME, ms
3.0
4.0
10 1 10 100 200
V(BR), BREAKDOWN VOLTAGE, VOLTS
FIG. 5- Typical Response to 8KV Positive Going ESD Pulse Per IEC1000 - 4-2 (IEC801-2) IFSM, PEAK FORWARD SURGE CURRENT, AMPERES
FIG. 6 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT UNIDIRECTIONAL ONLY
LET THROUGH VOLTAGE, VOLTS
105 84 63 42 21 0V -21 -42 -63 -84 -105 0 10 20 30 40 50 60 70
Device Used: SMAJ15C
50
TJ=TJ max. 8.3ms SINGLE HALF SINE-WAVE (JEDEC Method)
40 30 20
10
0
1
10
NUMBER OF CYCLES AT 60 HZ
100
t, TIME, nsec

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