SMAJ5.0 thru 188CA
Vishay Semiconductors
formerly General Semiconductor
Document Number 88390 www.vishay.com
17-Feb-04 1
Surface Mount TRANSZORB®
Transient Voltage Suppressors
Stand-off Voltage 5.0 to 188V
Peak Pulse Power 400W
Devices for Bidirectional Applications
For bi-directional devices, use suffix C or CA (e.g. SMAJ10C, SMAJ10CA). Electrical characteristics apply in both directions.
Maximum Ratings & Thermal Characteristics Ratings at 25°C ambient temperature unless otherwise specified.
Parameter Symbol Value Unit
Peak pulse power dissipation with PPPM 400 W
a 10/1000µs waveform(1,2) (see fig. 1)
Peak pulse current with a waveform(1) IPPM See Next Table A
Peak forward surge current 8.3ms single half sine-wave IFSM 40 A
uni-directional only(2)
Typical thermal resistance, junction to ambient(3) RθJA 120 °C/W
Typical thermal resistance, junction to lead RθJL 30 °C/W
Operating junction and storage temperature range TJ, TSTG –55 to +150 °C
Notes: (1) Non-repetitive current pulse, per Fig. 3 and derated above TA= 25°C per Fig. 2. Rating is 300W above 78V
(2) Mounted on 0.2 x 0.2" (5.0 x 5.0mm) copper pads to each terminal
(3) Mounted on minimum recommended pad layout
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) MAX.
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
Dimensions in inches
and (millimeters)
DO-214AC (SMA)
Features
• Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
• 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 IEC 1000-4-4 (IEC801-4)
• Low profile package with built-in strain relief for
surface mounted applications
• Glass passivated junction
• Low incremental surge resistance, excellent clamping
capability
• 400W peak pulse power capability with a 10/1000µs
waveform, repetition rate (duty cycle): 0.01% (300W
above 78V)
• Very fast response time
• High temperature soldering guaranteed:
250°C/10 seconds at terminals
Mechanical Data
Case: JEDEC DO-214AC molded plastic over
passivated chip
Terminals: Solder plated, solderable per MIL-STD-750,
Method 2026
Polarity: For uni-directional types the band denotes the
cathode, which is positive with respect to the anode
under normal TVS operation
Mounting Position: Any Weight: 0.002 oz., 0.064 g
Packaging Codes – Options (Antistatic):
51 – 1K per Bulk box, 20K/carton
61 – 1.8K per 7" plastic Reel (12mm tape), 36K/carton
5A – 7.5K per 13" plastic Reel (12mm tape), 75K/carton
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
Extended
Voltage Range
SMAJ5.0 thru 188CA
Vishay Semiconductors
formerly General Semiconductor
www.vishay.com Document Number 88390
217-Feb-04
Electrical Characteristics Ratings at 25°C ambient temperature unless otherwise specified. VF= 3.5V at IF= 25A (uni-directional only)
Device Breakdown Voltage Maximum Maximum Maximum
Device Type Marking V(BR) at IT(1) Test Stand-off
Reverse Leakage Peak Pulse Surge
Clamping
Code (V) Current Voltage at VWM Current IPPM Voltage at IPPM
UNI BI Min Max IT(mA) VWM (V) ID (µA) (3) (A)(2) VC(V)
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
Notes: (1) Pulse test: tp ≤50ms
(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 7.25V.
SMAJ5.0 thru 188CA
Vishay Semiconductors
formerly General Semiconductor
Document Number 88390 www.vishay.com
17-Feb-04 3
Electrical Characteristics Ratings at 25°C ambient temperature unless otherwise specified. VF= 3.5V at IF= 25A (uni-directional only)
Device Breakdown Voltage Maximum Maximum Maximum
Device Type Marking V(BR) at IT(1) Test Stand-off
Reverse Leakage Peak Pulse Surge
Clamping
Code (V) Current Voltage at VWM Current IPPM Voltage at IPPM
UNI BI Min Max IT(mA) VWM (V) ID (µA) (3) (A)(2) VC(V)
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
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 SG 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 SK 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 SM 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 0.9 344
SMAJ188A SS VS 209 231 1.0 188 1.0 0.91 328
Notes: (1) Pulse test: tp ≤50ms
(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
SMAJ5.0 thru 188CA
Vishay Semiconductors
formerly General Semiconductor
www.vishay.com Document Number 88390
417-Feb-04
Ratings and
Characteristic Curves (TA= 25°C unless otherwise noted)
0
25
50
75
100
07525 50 100 125 150 175 200
Peak Pulse Power (PPP) or Current (IPPM)
Derating in Percentage, %
TA — Ambient Temperature (°C)
1 5 10 50 100
tp — Pulse Duration (sec)
Fig. 2 – Pulse Derating Curve
PPPM — Peak Pulse Power (kW)
Fig. 1 – Peak Pulse Power Rating Curve
0.1
1
10
100
0.1µs1.0µs 10µs
td — Pulse Width (sec.)
100µs 1.0ms 10ms
0.2 x 0.2" (5.0 x 5.0mm)
Copper Pad Areas
0.2 x 0.2" (5.0 x 5.0mm)
Copper Pad Areas
Transient Thermal Impedance (°C/W)
Fig. 5 – Typical Transient Thermal
Impedance
Non-repetitive Pulse
Waveform shown in Fig. 3
TA = 25°C
Fig. 6 - Maximum Non-Repetitive Forward
Surge Current Uni-Directional Only
IFSM — Peak Forward Surge Current (A)
Number of Cycles at 60 Hz
CJ — Junction Capacitance (pF)
10
100
1,000
10,000
101 100 200
VWM — Reverse Stand-off Voltage (V)
TJ = 25°C
f = 1.0MHz
Vsig = 50mVp-p
Measured at
Stand-Off
Voltage, VWM
Uni-Directional
Bi-Directional
10
50
100
200 TJ = TJ max.
8.3ms Single Half Sine-Wave
(JEDEC Method)
Fig. 4 – Typical Junction Capacitance
1
10
100
1000
0.001 0.01 0.1 1 10 100 1000
0
50
100
150
IPPM — Peak Pulse Current, % IRSM
Fig. 3 – Pulse Waveform
TJ = 25°C
Pulse Width (td)
is defined as the point
where the peak current
decays to 50% of IPPM
tr = 10µsec.
Peak Value
IPPM
Half Value — IPP
IPPM 2
td
10/1000µsec. Waveform
as defined by R.E.A.
01.0 2.0 3.0 4.0
t — Time (ms)
SMAJ5.0 --
SMAJ78
SMAJ85 --
SMAJ188
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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
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