SMAJ5.0 thru 188CA
Surface Mount TRANSZORB®
Transient Voltage Suppressors
Stand-off Voltage 5.0 to 188V
Peak Pulse Power 400W
DO-214AC (SMA)
Cathode Band
0.065 (1.65)
0.110 (2.79)
0.100 (2.54)
0.049 (1.25)
d
nde nge
Exte e Ra
ltag
Vo
Mounting Pad Layout
0.066 MIN.
(1.68 MIN.)
0.094 MAX.
(2.38 MAX.)
0.177 (4.50)
Dimensions in inches
and (millimeters)
0.157 (3.99)
0.012 (0.305)
0.006 (0.152)
0.052 MIN.
(1.32 MIN.)
0.220
(5.58) REF
0.090 (2.29)
0.078 (1.98)
Features
0.060 (1.52)
0.008 (0.203) MAX.
0.030 (0.76)
0.208 (5.28)
0.194 (4.93)
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: 0.002oz., 0.064g
Packaging codes/options:
5A/7.5K per 13” Reel (12mm Tape), 90K/box
11/1.8K per 7” Reel (12mm tape), 36K/box
• Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
• 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 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
Devices for Bidirectional Applications
For bi-directional devices, use suffix CA (e.g. SMAJ10CA). Electrical characteristics apply in both directions.
Maximum Ratings & Thermal Characteristics
Parameter
Ratings at 25°C ambient temperature unless otherwise specified.
Symbol
Value
Unit
Peak pulse power dissipation with
a 10/1000µs waveform(1,2) (see fig. 1)
PPPM
400
W
Peak pulse current with a 10/1000µs waveform(1)
IPPM
See Next Table
A
Peak forward surge current 8.3ms single half sine-wave
superimposed on rated load (JEDEC Method)
uni-directional only(2)
IFSM
40
A
Typical thermal resistance, junction to ambient(3)
RθJA
120
°C/W
Typical thermal resistance, junction to lead
RθJL
30
°C/W
TJ, TSTG
–55 to +150
°C
Operating junction and storage temperature range
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
10/4/00
SMAJ5.0 thru 188CA
Surface Mount TRANSZORB®
Transient Voltage Suppressors
Electrical Characteristics
Device Type
SMAJ33
SMAJ33A
SMAJ36
SMAJ36A
SMAJ40
SMAJ40A
SMAJ43
SMAJ43A
SMAJ45
SMAJ45A
SMAJ48
SMAJ48A
SMAJ51
SMAJ51A
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
SMAJ188
SMAJ188A
Device
Marking
Code
UNI
BI
CL
YL
CM
YM
CN
YN
CP
YP
CQ
YQ
CR
YR
CS
YS
CT
YT
CU
YU
CV
YV
CW
YW
CX
YX
CY
YY
CZ
YZ
RD
ZD
RE
ZE
RF
ZF
RG
ZG
RH
ZH
RK
ZK
RL
ZL
RM
ZM
RN
ZN
RP
ZP
RQ
ZQ
RR
ZR
RS
ZS
RT
ZT
RU
ZU
RV
ZV
RW
ZW
RX
ZX
RY
ZY
RZ
ZZ
VD
VD
SE
VE
SF
VF
VG
VG
SH
VH
VK
VK
SL
VL
VM
VM
SN
VN
SP
VP
SQ
VQ
SR
VR
ST
VT
SS
VS
Ratings at 25°C ambient temperature unless otherwise specified. VF = 3.5V at IF = 25A (uni-directional only)
Breakdown
Voltage
V(BR) (V)(1)
Min
Max
36.7
44.9
36.7
40.6
40.0
48.9
40.0
44.2
44.4
54.3
44.4
49.1
47.8
58.4
47.8
52.8
50.0
61.1
50.0
55.3
53.3
65.1
53.3
58.9
56.7
69.3
56.7
62.7
60.0
73.3
60.0
66.3
64.4
78.7
64.4
71.2
66.7
81.5
66.7
73.7
71.1
86.9
71.1
78.6
77.8
95.1
77.8
86.0
83.3
102
83.3
92.1
86.7
106
86.7
95.8
94.4
115
94.4
104
100
122
100
111
111
136
111
123
122
149
122
135
133
163
133
147
144
176
144
159
167
204
167
185
178
218
178
197
189
231
189
209
209
255
209
231
Test
Current
at 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
1.0
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
Stand-off
Voltage
VWM (V)
33
33
36
36
40
40
43
43
45
45
48
48
51
51
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
188
188
Maximum
Maximum
Maximum
Reverse Leakage Peak Pulse Surge
Clamping
at VWM
Current IPPM
Voltage at IPPM
(3)
(2)(5)
ID (µA)
(A)
VC (V)
1.0
5.1
59.0
1.0
5.6
53.3
1.0
4.7
64.3
1.0
5.2
58.1
1.0
4.2
71.4
1.0
4.7
64.5
1.0
3.9
76.7
1.0
4.3
69.4
1.0
3.7
80.3
1.0
4.1
72.7
1.0
3.5
85.5
1.0
3.9
77.4
1.0
3.3
91.1
1.0
3.6
82.4
1.0
3.1
96.3
1.0
3.4
87.1
1.0
2.9
103
1.0
3.2
93.6
1.0
2.8
107
1.0
3.1
96.8
1.0
2.6
114
1.0
2.9
103
1.0
2.4
125
1.0
2.7
113
1.0
2.2
134
1.0
2.5
121
1.0
2.2
139
1.0
2.4
126
1.0
2.0
151
1.0
2.2
137
1.0
1.9
160
1.0
2.1
146
1.0
1.7
179
1.0
1.9
162
1.0
1.5
196
1.0
1.7
177
1.0
1.4
214
1.0
1.6
193
1.0
1.3
231
1.0
1.4
209
1.0
1.1
268
1.0
1.2
243
1.0
1.0
287
1.0
1.2
259
1.0
0.99
304
1.0
1.09
275
1.0
0.9
344
1.0
0.91
328
Notes: (1) V(BR) measured after IT applied for 300µs 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) All terms and symbols are consistent with ANSI/IEEE C62.35
(5) SMAJ78A and below can withstand higher currents (to 400W), but Vc must be increased by 5% (IPP = 400W/VC)
