Vishay General Semiconductor
SMAJ5.0 thru SMAJ188CA
Document Number 88390
12-Sep-06
www.vishay.com
1
Surface Mount TRANSZORB® Transient Voltage Suppressors
FEATURES
• Low profile package
• Ideal for automated placement
• Glass passivated chip junction
• Available in Unidirectional and Bidirectional
•
400 W peak pulse power capability with a 10/1000 µs
waveform, repetitive rate (duty cycle): 0.01 % (300 W
above 78 V)
• Excellent clamping capability
• Very fast response time
• Low incremental surge resistance
• Meets MSL level 1, per J-STD-020C, LF max peak
of 260 °C
• Solder Dip 260 °C, 40 seconds
• Component in accordance to RoHS 2002/95/EC
and WEEE 2002/96/EC
TYPICAL APPLICATIONS
Use in sensitive electronics protection against voltage
transients induced by inductive load switching and
lighting on ICs, MOSFET, signal lines of sensor units
for consumer, computer, industrial, automotive and
telecommunication.
MECHANICAL DATA
Case: DO-214AC (SMA)
Epoxy meets UL 94V-0 flammability rating
Terminals: Matte tin plated leads, solderable per
J-STD-002B and JESD22-B102D
E3 suffix for commercial grade, HE3 suffix for high
reliability grade (AEC Q101 qualified)
Polarity: Color band denotes cathode end
DO-214AC (SMA)
DEVICES FOR BIDIRECTION APPLICATIONS
For bidirectional use C or CA suffix (e.g. SMAJ10C,
SMAJ10CA).
Electrical characteristics apply in both directions.
MAJOR RATINGS AND CHARACTERISTICS
VWM 5.0 V to 188 V
PPPM 400 W, 300 W
IFSM 40 A
Tj max. 150 °C
Note:
(1) Non-repetitive current pulse, per Fig. 3 and derated above TA = 25 °C per Fig. 2. Rating is 300 W above 78 V
(2) Mounted on 0.2 x 0.2" (5.0 x 5.0 mm) copper pads to each terminal
MAXIMUM RATINGS (TA = 25 °C unless otherwise noted)
PARAMETER SYMBOL VALUE UNIT
Peak pulse power dissipation with a 10/1000 µs waveform (1,2) (see Fig. 1) PPPM 400 W
Peak pulse current with a waveform (1) IPPM see next table A
Peak forward surge current 8.3 ms single half sine-wave uni-directional only (2) I
FSM 40 A
Operating junction and storage temperature range TJ, TSTG - 55 to + 150 °C
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Document Number 88390
12-Sep-06
Vishay General Semiconductor
SMAJ5.0 thru SMAJ188CA
ELECTRICAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)
DEVICE TYPE
DEVICE MARKING
CODE
BREAKDOWN
VOLTAGE
V
(BR)
AT I
T
(1)
(V)
TEST
CURRENT
I
T
(mA)
STAND-OFF
VOLTAGE
V
WM
(V)
MAXIMUM
REVERSE
LEAKAGE
AT V
WM
I
D
(µA)
(3)
MAXIMUM
PEAK PULSE
SURGE
CURRENT
I
PPM
(A)
(2)
MAXIMUM
CLAMPING
VOLTAGE AT
I
PPM
V
C
(V)
UNI BI
MIN MAX
SMAJ5.0 AD WD 6.40 7.82 10 5.0 800 41.7 9.6
SMAJ5.0A(5) AE WE 6.40 7.07 10 5.0 800 43.5 9.2
SMAJ6.0 AF WF 6.67 8.15 10 6.0 800 35.1 11.4
SMAJ6.0A AG WG 6.67 7.37 10 6.0 800 38.8 10.3
SMAJ6.5 AH WH 7.22 8.82 10 6.5 500 32.5 12.3
SMAJ6.5A AK WK 7.22 7.98 10 6.5 500 35.7 11.2
SMAJ7.0 AL WL 7.78 9.51 10 7.0 200 30.1 13.3
SMAJ7.0A AM WM 7.78 8.60 10 7.0 200 33.3 12.0
SMAJ7.5 AN WN 8.33 10.2 1.0 7.5 100 28.0 14.3
SMAJ7.5A AP WP 8.33 9.21 1.0 7.5 100 31.0 12.9
SMAJ8.0 AQ WQ 8.89 10.9 1.0 8.0 50 26.7 15.0
SMAJ8.0A AR WR 8.89 9.83 1.0 8.0 50 29.4 13.6
SMAJ8.5 AS WS 9.44 11.5 1.0 8.5 10 25.2 15.9
SMAJ8.5A AT WT 9.44 10.4 1.0 8.5 10 27.8 14.4
SMAJ9.0 AU WU 10.0 12.2 1.0 9.0 5.0 23.7 16.9
SMAJ9.0A AV WV 10.0 11.1 1.0 9.0 5.0 26.0 15.4
SMAJ10 AW WW 11.1 13.6 1.0 10 1.0 21.3 18.8
SMAJ10A AX WX 11.1 12.3 1.0 10 1.0 23.5 17.0
SMAJ11 AY WY 12.2 14.9 1.0 11 1.0 19.9 20.1
SMAJ11A AZ WZ 12.2 13.5 1.0 11 1.0 22.0 18.2
SMAJ12 BD XD 13.3 16.3 1.0 12 1.0 18.2 22.0
SMAJ12A BE XE 13.3 14.7 1.0 12 1.0 20.1 19.9
SMAJ13 BF XF 14.4 17.6 1.0 13 1.0 16.8 23.8
SMAJ13A BG XG 14.4 15.9 1.0 13 1.0 18.6 21.5
SMAJ14 BH XH 15.6 19.1 1.0 14 1.0 15.5 25.8
SMAJ14A BK XK 15.6 17.2 1.0 14 1.0 17.2 23.2
SMAJ15 BL XL 16.7 20.4 1.0 15 1.0 14.9 26.9
SMAJ15A BM XM 16.7 18.5 1.0 15 1.0 16.4 24.4
SMAJ16 BN XN 17.8 21.8 1.0 16 1.0 13.9 28.8
SMAJ16A BP XP 17.8 19.7 1.0 16 1.0 15.4 26.0
SMAJ17 BQ XQ 18.9 23.1 1.0 17 1.0 13.1 30.5
SMAJ17A BR XR 18.9 20.9 1.0 17 1.0 14.5 27.6
SMAJ18 BS XS 20.0 24.4 1.0 18 1.0 12.4 32.2
SMAJ18A BT XT 20.0 22.1 1.0 18 1.0 13.7 29.2
SMAJ20 BU XU 22.2 27.1 1.0 20 1.0 11.2 35.8
SMAJ20A BV XV 22.2 24.5 1.0 20 1.0 12.3 32.4
SMAJ22 BW XW 24.4 29.8 1.0 22 1.0 10.2 39.4
SMAJ22A BX XX 24.4 26.9 1.0 22 1.0 11.3 35.5
SMAJ24 BY XY 26.7 32.6 1.0 24 1.0 9.3 43.0
SMAJ24A BZ XZ 26.7 29.5 1.0 24 1.0 10.3 38.9
SMAJ26 CD YD 28.9 35.3 1.0 26 1.0 8.6 46.6
SMAJ26A CE YE 28.9 31.9 1.0 26 1.0 9.5 42.1
SMAJ28 CF YF 31.1 38.0 1.0 28 1.0 8.0 50.0
SMAJ28A CG YG 31.1 34.4 1.0 28 1.0 8.8 45.4
SMAJ30 CH YH 33.3 40.7 1.0 30 1.0 7.5 53.5
SMAJ30A CK YK 33.3 36.8 1.0 30 1.0 8.3 48.4
SMAJ33 CL YL 36.7 44.9 1.0 33 1.0 6.8 59.0
SMAJ33A CM YM 36.7 40.6 1.0 33 1.0 7.5 53.3
SMAJ36 CN YN 40.0 48.9 1.0 36 1.0 6.2 64.3
SMAJ36A CP YP 40.0 44.2 1.0 36 1.0 6.9 58.1
SMAJ40 CQ YQ 44.4 54.3 1.0 40 1.0 5.6 71.4
Document Number 88390
12-Sep-06
www.vishay.com
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SMAJ5.0 thru SMAJ188CA
Vishay General Semiconductor
Note:
(1) Pulse test: tp ≤ 50 ms
(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) All terms and symbols are consistent with ANSI/IEEE C62.35
(5) For the bidirectional SMAJ5.0CA, the maximum V(BR) is 7.25 V
(6) VF = 3.5 V at IF = 25 A (uni-directional only)
SMAJ40A CR YR 44.4 49.1 1.0 40 1.0 6.2 64.5
SMAJ43 CS YS 47.8 58.4 1.0 43 1.0 5.2 76.7
SMAJ43A CT YT 47.8 52.8 1.0 43 1.0 5.8 69.4
SMAJ45 CU YU 50.0 61.1 1.0 45 1.0 5.0 80.3
SMAJ45A CV YV 50.0 55.3 1.0 45 1.0 5.5 72.7
SMAJ48 CW YW 53.3 65.1 1.0 48 1.0 4.7 85.5
SMAJ48A CX YX 53.3 58.9 1.0 48 1.0 5.2 77.4
SMAJ51 CY YY 56.7 69.3 1.0 51 1.0 4.4 91.1
SMAJ51A CZ YZ 56.7 62.7 1.0 51 1.0 4.9 82.4
SMAJ54 RD ZD 60.0 73.3 1.0 54 1.0 4.2 96.3
SMAJ54A RE ZE 60.0 66.3 1.0 54 1.0 4.6 87.1
SMAJ58 RF ZF 64.4 78.7 1.0 58 1.0 3.9 103
SMAJ58A RG ZG 64.4 71.2 1.0 58 1.0 4.3 93.6
SMAJ60 RH ZH 66.7 81.5 1.0 60 1.0 3.7 107
SMAJ60A RK ZK 66.7 73.7 1.0 60 1.0 4.1 96.8
SMAJ64 RL ZL 71.1 86.9 1.0 64 1.0 3.5 114
SMAJ64A RM ZM 71.1 78.6 1.0 64 1.0 3.9 103
SMAJ70 RN ZN 77.8 95.1 1.0 70 1.0 3.2 125
SMAJ70A RP ZP 77.8 86.0 1.0 70 1.0 3.5 113
SMAJ75 RQ ZQ 83.3 102 1.0 75 1.0 3.0 134
SMAJ75A RR ZR 83.3 92.1 1.0 75 1.0 3.3 121
SMAJ78 RS ZS 86.7 106 1.0 78 1.0 2.9 139
SMAJ78A RT ZT 86.7 95.8 1.0 78 1.0 3.2 126
SMAJ85 RU ZU 94.4 115 1.0 85 1.0 2.0 151
SMAJ85A RV ZV 94.4 104 1.0 85 1.0 2.2 137
SMAJ90 RW ZW 100 122 1.0 90 1.0 1.9 160
SMAJ90A RX ZX 100 111 1.0 90 1.0 2.1 146
SMAJ100 RY ZY 111 136 1.0 100 1.0 1.7 179
SMAJ100A RZ ZZ 111 123 1.0 100 1.0 1.9 162
SMAJ110 VD VD 122 149 1.0 110 1.0 1.5 196
SMAJ110A SE VE 122 135 1.0 110 1.0 1.7 177
SMAJ120 SF VF 133 163 1.0 120 1.0 1.4 214
SMAJ120A VG VG 133 147 1.0 120 1.0 1.6 193
SMAJ130 SH VH 144 176 1.0 130 1.0 1.3 231
SMAJ130A VK VK 144 159 1.0 130 1.0 1.4 209
SMAJ150 SL VL 167 204 1.0 150 1.0 1.1 268
SMAJ150A VM VM 167 185 1.0 150 1.0 1.2 243
SMAJ160 SN VN 178 218 1.0 160 1.0 1.0 287
SMAJ160A SP VP 178 197 1.0 160 1.0 1.2 259
SMAJ170 SQ VQ 189 231 1.0 170 1.0 0.99 304
SMAJ170A SR VR 189 209 1.0 170 1.0 1.09 275
SMAJ188 ST VT 209 255 1.0 188 1.0 0.90 344
SMAJ188A SS VS 209 231 1.0 188 1.0 0.91 328
ELECTRICAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)
DEVICE TYPE
DEVICE MARKING
CODE
BREAKDOWN
VOLTAGE
V
(BR)
AT I
T
(1)
(V)
TEST
CURRENT
I
T
(mA)
STAND-OFF
VOLTAGE
V
WM
(V)
MAXIMUM
REVERSE
LEAKAGE
AT V
WM
I
D
(µA)
(3)
MAXIMUM
PEAK PULSE
SURGE
CURRENT
I
PPM
(A)
(2)
MAXIMUM
CLAMPING
VOLTAGE AT
I
PPM
V
C
(V)
UNI BI
MIN MAX
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Document Number 88390
12-Sep-06
Vishay General Semiconductor
SMAJ5.0 thru SMAJ188CA
Note:
(1) Mounted on minimum recommended pad layout
RATINGS AND CHARACTERISTICS CURVES
(TA = 25 °C unless otherwise noted)
THERMAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)
PARAMETER SYMBOL VALUE UNIT
Typical thermal resistance, junction to ambient (1) R
θJA 120 °C/W
Typical thermal resistance, junction to lead RθJL 30 °C/W
ORDERING INFORMATION
PREFERRED P/N UNIT WEIGHT (g) PREFERRED PACKAGE CODE BASE QUANTITY DELIVERY MODE
SMAJ5.0A-E3/61 0.064 61 1800 7" Diameter Plastic Tape & Reel
SMAJ5.0A-E3/5A 0.064 5A 7500 13" Diameter Plastic Tape & Reel
Figure 1. Peak Pulse Power Rating Curve
Figure 2. Pulse Power or Current versus Initial Junction Temperature
0.1
1
10
100
SMAJ5.0
--
SMAJ78
SMAJ85--
SMAJ188
P
PPM
, Peak Pulse Power (kW)
td - Pulse Width (s)
0.2 x 0.2" (0.5 x 0.5 mm)
Copper Pad Areas
Non-repetitive Pulse
Waveform shown in Fig. 3
TA = 25 °C
0.1 µs 1.0 µs 10 µs 100 µs 1.0 ms 10 ms
0 255075100
100
75
50
25
0
125 150 175 200
TJ - Initial Temperature (°C)
Peak Pulse Power (PPP) or Current (IPP)
Derating in Percentage, %
Figure 3. Pulse Waveform
Figure 4. Typical Junction Capacitance
0
50
100
1
5
0
td
0 1.0 2.0 3.0 4.0
IPPM - Peak Pulse Current, % IRSM
t - Time (ms)
tr = 10 µsec
Peak Value
I
PPM
Half Value -
I
PPM
I
PP
2
10/1000 µsec Waveform
as defined by R.E.A.
T
j
= 25 °C
Pulse Width (td)
is defined as the point
where the peak current
decays to 50 % of I
PPM
10
100
1000
10000
101 100 200
Uni-Directional
Bi-Directional
T
j
= 25 °C
f = 1.0 MHz
V
sig
= 50 mVp-p
Measured at
Stand-off
Voltage V
WM
C
J
, Junction Capacitance (pF)
V
WM
- Reverse Stand-off Voltage (V)
Vishay General Semiconductor
SMAJ5.0 thru SMAJ188CA
Document Number 88390
12-Sep-06
www.vishay.com
5
PACKAGE OUTLINE DIMENSIONS in inches (millimeters)
Figure 5. Typical Transient Thermal Impedance
1
10
100
1000
0.001 0.01 0.1 1.0 10 100 1000
tp - Pulse Duration (s)
Transient Thermal Impedance (°C/W)
Figure 6. Maximum Non-Repetitive Forward Surge Current
Uni-Directional Only
101 5 50 100
10
50
100
200
Number of Cycles at 60 Hz
Peak Forward Surge Current (A)
T
j
= T
j
max.
8.3 ms Single Half Sine-Wave
0.157 (3.99)
0.177 (4.50)
0.006 (0.152)
0.012 (0.305)
0.030 (0.76)
0.060 (1.52) 0.008 (0.203)
0.194 (4.93)
0.208 (5.28)
0.100 (2.54)
0.110 (2.79)
0.078 (1.98)
0.090 (2.29)
0.049 (1.25)
0.065 (1.65)
Cathode Band
0 (0)
DO-214AC (SMA)
0.074 MAX.
(1.88 MAX.)
0.208
(5.28) REF
0.066 MIN.
(1.68 MIN.)
0.060 MIN.
(1.52 MIN.)
Mounting Pad Layout
Legal Disclaimer Notice
Vishay
Document Number: 91000 www.vishay.com
Revision: 08-Apr-05 1
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
