Features
■ RoHS compliant*
■ Surface Mount SMA package
■ Standoff Voltage: 5.0 to 495 volts
■ Power Dissipation: 400 watts
Applications
■ IEC 61000-4-2 ESD (Min. Level 4)
■ IEC 61000-4-4 EFT
■ IEC 61000-4-5 Surge
Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted)
SMAJ Transient Voltage Suppressor Diode Series
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
Parameter Symbol Value Unit
Minimum Peak Pulse Power Dissipation (TP = 1 ms) (Note 1,2) PPK 400 Watts
Peak Forward Surge Current
8.3 ms Single Half Sine Wave Superimposed on Rated Load
(JEDEC Method) (Note 3)
IFSM 40 Amps
Steady State Power Dissipation @ TL = 75 °C PM(AV) 1.0 Watts
Maximum Instantaneous Forward Voltage @ IPP = 35 A
(For Unidirectional Units Only)
SMAJ5.0A ~ SMAJ90A
SMAJ100A ~ SMAJ495A VF
3.5
5.0 Volts
Operating Temperature Range TJ-55 to +150 °C
Storage Temperature Range TSTG -55 to +150 °C
1. Non-repetitive current pulse, per Pulse Waveform graph and derated above TA = 25 °C per Pulse Derating Curve.
2. Thermal Resistance Junction to Lead.
3. 8.3 ms Single Half-Sine Wave duty cycle = 4 pulses maximum per minute (unidirectional units only).
General Information
The markets of portable communications, computing and video equipment are challenging the semiconductor industry to develop
increasingly smaller electronic components.
Bourns offers Transient Voltage Suppressor Diodes for surge and ESD protection applications, in compact chip package DO-214AC (SMA)
size format. The Transient Voltage Suppressor series offers a choice of Working Peak Reverse Voltage from 5 V up to 495 V and Breakdown
Voltage up to 550 V. Typical fast response times are less than 1.0 picoseconds for unidirectional devices and less than 5.0 picoseconds for
bidirectional devices from 0 V to Minimum Breakdown Voltage.
Bourns® Chip Diodes conform to JEDEC standards, are easy to handle with standard pick and place equipment and the fl at confi guration
minimizes roll away.
How to Order
SMAJ 5.0 CA
Package
SMAJ = SMA/DO-214AC
Working Peak Reverse Voltage
5.0 = 5.0 VRWM (Volts)
Suffi x
A = 5 % Tolerance Unidirectional Device
CA = 5 % Tolerance Bidirectional Device
*RoHS COMPLIANT
Asia-Pacifi c:
Tel: +886-2 2562-4117
Fax: +886-2 2562-4116
EMEA:
Tel: +36 88 520 390
Fax: +36 88 520 211
The Americas:
Tel: +1-951 781-5500
Fax: +1-951 781-5700
www.bourns.com
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
SMAJ Transient Voltage Suppressor Diode Series
Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted)
Unidirectional Device Bidirectional Device Breakdown Voltage
VBR (Volts)
Working
Peak
Reverse
Voltage
Maximum
Reverse
Leakage
@ VRWM
Maximum
Reverse
Voltage
@ IRSM
Maximum
Reverse
Surge
Current
Part No. Marking Part No. Marking Min. Max. @ IT (mA) VRWM (V) IR (μA) VRSM (V) IRSM (A)
SMAJ5.0A HE SMAJ5.0CA TE 6.40 7.00 10 5.0 800 9.2 43.5
SMAJ6.0A HG SMAJ6.0CA TG 6.67 7.37 10 6.0 800 10.3 38.8
SMAJ6.5A HK SMAJ6.5CA TK 7.22 7.98 10 6.5 500 11.2 35.7
SMAJ7.0A HM SMAJ7.0CA TM 7.78 8.60 10 7.0 200 12.0 33.3
SMAJ7.5A HP SMAJ7.5CA TP 8.33 9.21 1.0 7.5 100 12.9 31.0
SMAJ8.0A HR SMAJ8.0CA TR 8.89 9.83 1.0 8.0 50 13.6 29.4
SMAJ8.5A HT SMAJ8.5CA TT 9.44 10.4 1.0 8.5 20 14.4 27.8
SMAJ9.0A HV SMAJ9.0CA TV 10.0 11.1 1.0 9.0 10 15.4 26.0
SMAJ10A HX SMAJ10CA TX 11.1 12.3 1.0 10 5 17.0 23.5
SMAJ11A HZ SMAJ11CA TZ 12.2 13.5 1.0 11 1.0 18.2 22.0
SMAJ12A IE SMAJ12CA UE 13.3 14.7 1.0 12 1.0 19.9 20.1
SMAJ13A IG SMAJ13CA UG 14.4 15.9 1.0 13 1.0 21.5 18.6
SMAJ14A IK SMAJ14CA UK 15.6 17.2 1.0 14 1.0 23.2 17.2
SMAJ15A IM SMAJ15CA UM 16.7 18.5 1.0 15 1.0 24.4 16.4
SMAJ16A IP SMAJ16CA UP 17.8 19.7 1.0 16 1.0 26.0 15.3
SMAJ17A IR SMAJ17CA UR 18.9 20.9 1.0 17 1.0 27.6 14.5
SMAJ18A IT SMAJ18CA UT 20.0 22.1 1.0 18 1.0 29.2 13.7
SMAJ20A IV SMAJ20CA UV 22.2 24.5 1.0 20 1.0 32.4 12.3
SMAJ22A IX SMAJ22CA UX 24.4 26.9 1.0 22 1.0 35.5 11.3
SMAJ24A IZ SMAJ24CA UZ 26.7 29.5 1.0 24 1.0 38.9 10.3
SMAJ26A JE SMAJ26CA VE 28.9 31.9 1.0 26 1.0 42.1 9.5
SMAJ28A JG SMAJ28CA VG 31.1 34.4 1.0 28 1.0 45.4 8.8
SMAJ30A JK SMAJ30CA VK 33.3 36.8 1.0 30 1.0 48.4 8.3
SMAJ33A JM SMAJ33CA VM 36.7 40.6 1.0 33 1.0 53.3 7.5
SMAJ36A JP SMAJ36CA VP 40 44.2 1.0 36 1.0 58.1 6.9
SMAJ40A JR SMAJ40CA VR 44.4 49.1 1.0 40 1.0 64.5 6.2
SMAJ43A JT SMAJ43CA VT 47.8 52.8 1.0 43 1.0 69.4 5.8
SMAJ45A JV SMAJ45CA VV 50 55.3 1.0 45 1.0 72.7 5.5
SMAJ48A JX SMAJ48CA VX 53.3 58.9 1.0 48 1.0 77.4 5.2
SMAJ51A JZ SMAJ51CA VZ 56.7 62.7 1.0 51 1.0 82.4 4.9
SMAJ54A RE SMAJ54CA WE 60 66.3 1.0 54 1.0 87.1 4.6
SMAJ58A RG SMAJ58CA WG 64.4 71.2 1.0 58 1.0 93.6 4.3
SMAJ60A RK SMAJ60CA WK 66.7 73.7 1.0 60 1.0 96.8 4.1
SMAJ64A RM SMAJ64CA WM 71.1 78.6 1.0 64 1.0 103 3.9
SMAJ70A RP SMAJ70CA WP 77.8 86.0 1.0 70 1.0 113 3.5
SMAJ75A RR SMAJ75CA WR 83.3 92.1 1.0 75 1.0 121 3.3
SMAJ78A RT SMAJ78CA WT 86.7 95.8 1.0 78 1.0 126 3.2
SMAJ85A RV SMAJ85CA WV 94.4 104 1.0 85 1.0 137 2.9
SMAJ90A RX SMAJ90CA WX 100 111 1.0 90 1.0 146 2.7
SMAJ100A RZ SMAJ100CA WZ 111 123 1.0 100 1.0 162 2.5
SMAJ110A SE SMAJ110CA XE 122 135 1.0 110 1.0 177 2.3
SMAJ120A SG SMAJ120CA XG 133 147 1.0 120 1.0 193 2.1
SMAJ130A SK SMAJ130CA XK 144 159 1.0 130 1.0 209 1.9
SMAJ150A SM SMAJ150CA XM 167 185 1.0 150 1.0 243 1.6
SMAJ160A SP SMAJ160CA XP 178 197 1.0 160 1.0 259 1.5
SMAJ170A SR SMAJ170CA XR 189 209 1.0 170 1.0 275 1.5
SMAJ180A ST SMAJ180CA XT 201 222 1.0 180 1.0 292 1.4
SMAJ200A SV SMAJ200CA XV 224 247 1.0 200 1.0 324 1.2
SMAJ220A SX SMAJ220CA XX 246 272 1.0 220 1.0 356 1.1
SMAJ250A SZ SMAJ250CA XZ 279 309 1.0 250 1.0 405 1.0
SMAJ300A FE SMAJ300CA GE 335 371 1.0 300 1.0 486 0.8
SMAJ350A FG SMAJ350CA GG 391 432 1.0 350 1.0 567 0.7
SMAJ400A FK SMAJ400CA GK 447 494 1.0 400 1.0 648 0.6
SMAJ434A 434U SMAJ434CA 434D 485 535 1.0 434 1.0 698 0.6
SMAJ440A FM SMAJ440CA GM 492 543 1.0 440 1.0 713 0.6
SMAJ495A 495U SMAJ495CA 495D 522 578 1.0 495 1.0 760 0.5
Notes: 1. Suffi x ‘A’ denotes a 5 % tolerance unidirectional device. 3. For bidirectional devices with a VR of 10 volts or less, the IR limit is double.
2. Suffi x ‘CA’ denotes a 5 % tolerance bidirectional device.
Product Dimensions
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
SMAJ Transient Voltage Suppressor Diode Series
Recommended Footprint
Physical Specifi cations
Case ...........................................Molded plastic per UL Class 94V-0
Polarity....................... Cathode band indicates unidirectional device
No cathode band indicates bidirectional device
Weight ...........................................................................0.064 grams
DIMENSIONS: MM
(INCHES)
B
G
F D
C
H
E
AA
C
B
Dimension SMA (DO-214AC)
A3.99 - 4.57
(0.157 - 0.180)
B2.29 - 2.92
(0.090 - 0.115)
C1.25 - 1.65
(0.049 - 0.065)
D0.15 - 0.31
(0.006 - 0.112)
E 4.83 - 5.59
(0.190 - 0.220)
F 0.05 - 0.203
(0.002 - 0.008)
G 1.98 - 2.62
(0.078 - 0.103)
H 0.76 - 1.52
(0.030 - 0.060)
DIMENSIONS: MM
(INCHES)
Dimension SMA (DO-214AC)
A (Max.) 2.70
(0.106)
B (Min.) 2.10
(0.083)
C (Min.) 1.27
(0.050)
100
75
50
25
0
050
25 75 100 150125 175 200
Ambient Temperature (
Peak Pulse Derating in Percent of
Peak Power or Current
°C)
10 x 1000 Waveform as Defined
by R.E.A.
Peak Forward Surge Current (Amps)
60
40
50
30
20
10
0
12 5 10 20 50 100
Number of Cycles at 60 Hz
Pulse Width 8.3 ms
Single Half Sine-Wave
100
50
0
0 1.0 2.0 3.0 4.0
T, Time (ms)
IP, Peak Pulse Current (%)
TA=25 °C
TP
TR=10 µs
Half value= IRSM
2
Peak value (IRSM)
Pulse width (TP)
is defined as that point
where the peak current
decays to 50 % of IPSM.
10 x 1000 waveform
as defined by R.E.A.
Capacitance (pF)
10000
100
0
010 100 1000
Standoff Voltage (Volts)
1000
Bidirectional
TA = 25 °C
Unidirectional
100
10
1.0
0.1
0.1 µs 1.0 µs 10 µs 10 ms
TP, Pulse Width
PP, Peak Power (KW)
100 µs 1.0 ms
5.0 mm Lead Areas
TA = 25 °C
Non-repetitive
Pulse Waveform
Shown in Pulse Waveform Graph
1.0
0.6
0.8
0.4
0.2
0.0
050
25 75 100 150125 175 200
TL, Lead Temperature (°C)
RM(AV) Steady State Power Dissipation (W)
60 Hz Resistive or
Inductive Load
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
SMAJ Transient Voltage Suppressor Diode Series
Rating & Characteristic Curves
Pulse Derating Curve Maximum Non-Repetitive Surge Current
Pulse Waveform Typical Junction Capacitance
Pulse Rating Curve Steady State Power Derating Curve
.......
.......
....... ..............
....... ..............
PA
F
ET
120 °
D2
DD
1
W1
C
Index Hole
P
0
P
1
W
B
10 pitches (min.)
Direction of Feed
10 pitches (min.)
End
Trailer Device Leader
Start
d
CDDFN5-0504N - TVS/Steering Diode Array
Packaging Information
The product will be dispensed in tape and reel format (see diagram below).
Devices are packed in accordance with EIA 481
standard specifi cations shown here.
DIMENSIONS: MM
(INCHES)
Item Symbol SMA (DO-214AC)
Carrier Width A 2.90 ± 0.20
(0.114 ± 0.008)
Carrier Length B 5.50 ± 0.20
(0.217 ± 0.008)
Carrier Depth C 2.26 ± 0.20
(0.089 ± 0.008)
Sprocket Hole d 1.50 ± 0.10
(0.061 ± 0.004)
Reel Outside Diameter D 330
(12.992)
Reel Inner Diameter D1 50.0
(1.969) MIN.
Feed Hole Diameter D2 13.0 ± 0.20
(0.512 ± 0.008)
Sprocket Hole Position E 1.75 ± 0.10
(0.069 ± 0.004)
Punch Hole Position F 5.50 ± 0.05
(0.217 ± 0.002)
Punch Hole Pitch P 4.00 ± 0.10
(0.157 ± 0.004)
Sprocket Hole Pitch P0 4.00 ± 0.10
(0.157 ± 0.004)
Embossment Center P1 2.00 ± 0.05
(0.079 ± 0.002)
Overall Tape Thickness T 0.30 ± 0.10
(0.012 ± 0.004)
Tape Width W 12.00 ± 0.30
(0.472 ± 0.012)
Reel Width W118.4
(0.724) MAX.
Quantity per Reel -- 5,000
REV. 04/15
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
SMAJ Transient Voltage Suppressor Diode Series
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Bourns:
SMAJ100A SMAJ100CA SMAJ10A SMAJ10CA SMAJ110A SMAJ110CA SMAJ11A SMAJ11CA SMAJ120A
SMAJ120CA SMAJ12A SMAJ12CA SMAJ130A SMAJ130CA SMAJ13A SMAJ13CA SMAJ14A SMAJ14CA
SMAJ150A SMAJ150CA SMAJ15A SMAJ15CA SMAJ160A SMAJ160CA SMAJ16A SMAJ16CA SMAJ170A
SMAJ170CA SMAJ17A SMAJ17CA SMAJ18A SMAJ18CA SMAJ20A SMAJ20CA SMAJ22A SMAJ22CA
SMAJ24A SMAJ24CA SMAJ26A SMAJ26CA SMAJ28A SMAJ28CA SMAJ30A SMAJ30CA SMAJ33A
SMAJ33CA SMAJ36A SMAJ36CA SMAJ40A SMAJ40CA SMAJ43A SMAJ43CA SMAJ45A SMAJ45CA
SMAJ48A SMAJ48CA SMAJ5.0A SMAJ5.0CA SMAJ51A SMAJ51CA SMAJ54A SMAJ54CA SMAJ58A
SMAJ58CA SMAJ6.0A SMAJ6.0CA SMAJ6.5A SMAJ6.5CA SMAJ60A SMAJ60CA SMAJ64A SMAJ64CA
SMAJ7.0A SMAJ7.0CA SMAJ7.5A SMAJ7.5CA SMAJ70A SMAJ70CA SMAJ75A SMAJ75CA SMAJ78A
SMAJ78CA SMAJ8.0A SMAJ8.0CA SMAJ8.5A SMAJ8.5CA SMAJ85A SMAJ85CA SMAJ9.0A SMAJ9.0CA
SMAJ90A SMAJ90CA SMAJ350A SMAJ495A SMAJ350CA SMAJ434CA SMAJ434A SMAJ495CA SMAJ180A
SMAJ220A
