SMAJ Series
Transient Voltage Suppressor
Features:
•
•
•
•
•
•
•
•
•
•
For surface mounted application.
Low profile package.
Built-in strain relief.
Glass passivated junction.
Excellent clamping capability.
Fast response time : Typically less than 1.0 ps from 0 volts to 8 volts min.
Typical I
R
less than 1 µA above 10 V.
High temperature soldering guaranteed : 260°C / 10 s at terminals.
Plastic material used carried underwriters laboratory flammability classification 94V-0.
400 watts peak pulse power capability with a 10 / 1,000 µs waveform (300 W above 78 V).
SMA/DO-214AC
Dimensions : Inches (Millimetres)
Mechanical Data
Case
Terminals
Polarity
Packaging
:
:
:
:
Moulded plastic.
Pure tin plated, lead free.
Indicated by cathode band.
12 mm tape per EIA std RS-481.
Marking Diagram
XX
G
Y
M
= Specific device code
= Green compound
= Year
= Work month
Maximum Ratings and Electrical Characteristics
Ratings at 25°C ambient temperature unless otherwise specified.
Type Number
Peak Power Dissipation at T
A
= 25°C, T
p
= 1 ms (Note 1)
Steady State Power Dissipation
Peak Forward Surge Current, 8.3 ms Single Half
Sine-wave Superimposed on Rated Load
(JEDEC method) (Note 2, 3)
Maximum Instantaneous Forward Voltage at 25 A for
Unidirectional Only
Operating and Storage Temperature Range
Symbol
P
PK
P
D
I
FSM
Value
Minimum 400
Watts
1
40
Amps
Unit
V
F
T
J
, T
STG
3.5
-55 to +150
Volts
°C
Note 1: Non-repetitive current pulse per Fig. 3 and derated above T
A
= 25°C per fig. 2.
Note 2: Mounted on 5 × 5 mm (0.013 mm thick) copper pads to each terminal.
Note 3: 8.3 ms single half sine-wave or equivalent square wave, duty cycle = 4 pulses per minute maximum.
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Page <1>
26/05/11 V1.1
SMAJ Series
Transient Voltage Suppressor
Devices for bipolar applications
1. For bidirectional use C or CA suffix for types SMAJ5.0 through types SMAJ188.
2. Electrical characteristics apply in both directions.
Ratings and Characteristic Curves
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Page <2>
26/05/11 V1.1
SMAJ Series
Transient Voltage Suppressor
Ratings and Characteristic Curves
Electrical Characteristics (T
A
= 25°C unless otherwise noted)
Device
Marking
Code
Working
Peak
Reverse
Voltage
V
WM
5
Breakdown Voltage
VBR (V)
at I
T
Min.
6.4
Max.
7.3
7
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
1
10
Test
Current
I
T
(mA)
Maximum
Clamping
Voltage at
I
PPM
Vc (V)
(Note 5)
9.6
9.2
11.4
10.3
12.3
11.2
13.3
12
14.3
12.9
15
13.6
15.9
14.4
16.9
15.4
18.8
17
Maximum
Maximum
Reverse
Peak Pulse
Leakage at
Surge Current
V
WM
I
PPM
(A)
ID (µA)
(Note 5)
41.7
43.5
35.1
38.8
32.5
35.7
30.1
33.3
28
31
26.7
29.4
25.2
27.8
23.7
26
21.3
23.5
5
500
800
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
SMAJ9.0A
SMAJ10
SMAJ10A
AD
AE
AF
AG
AH
AK
AL
AM
AN
AP
AQ
AR
AS
AT
AU
AV
AW
AX
6
6.67
6.5
7.22
7
7.78
200
7.5
8.33
100
8
8.89
50
8.5
9.44
10
9
10
10
11.1
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Page <3>
26/05/11 V1.1
SMAJ Series
Transient Voltage Suppressor
Electrical Characteristics (T
A
= 25°C unless otherwise noted)
Working
Peak
Reverse
Voltage
V
WM
Breakdown Voltage
VBR (V)
at I
T
Maximum
Clamping
Voltage at
I
PPM
Vc (V)
(Note 5)
20.1
18.2
22
19.9
23.8
21.5
25.8
23.2
26.9
24.4
28.8
26
30.5
27.6
32.2
29.2
1
35.8
32.4
39.4
35.5
43
38.9
46.6
42.1
50
45.4
53.5
48.4
59
53.3
Maximum
Maximum
Reverse
Peak Pulse
Leakage at
Surge Current
V
WM
I
PPM
(A)
ID (µA)
(Note 5)
19.9
22
18.2
20.1
16.8
18.6
15.5
17.2
14.9
16.4
13.9
15.4
13.1
14.5
12.4
13.7
11.2
12.3
10.2
11.3
9.3
10.3
8.6
9.5
8
8.8
7.5
8.3
6.8
7.5
5
Device
Device
Marking
Code
Test
Current
I
T
(mA)
Min.
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
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
11
12.2
Max.
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
34.4
40.7
36.8
44.9
40.6
12
13.3
13
14.4
14
15.6
15
16.7
16
17.8
17
18.9
18
20
20
22.2
22
24.4
24
26.7
26
28.9
28
31.1
30
33.3
33
36.7
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Page <4>
26/05/11 V1.1
SMAJ Series
Transient Voltage Suppressor
Electrical Characteristics (T
A
= 25°C unless otherwise noted)
Device
Marking
Code
Working
Peak
Reverse
Voltage
V
WM
36
Breakdown Voltage
VBR (V)
at I
T
Min.
40
Max.
48.9
44.2
54.3
49.1
58.4
52.8
61.1
55.3
65.1
58.9
69.3
62.7
73.3
66.3
78.7
71.2
81.5
73.7
86.9
78.6
95.1
86
102
92.1
106
95.8
115
104
122
111
136
123
1
Test
Current
I
T
(mA)
Maximum
Clamping
Voltage at
I
PPM
Vc (V)
(Note 5)
64.3
58.1
71.4
64.5
76.7
69.4
80.3
72.7
85.5
77.4
91.1
82.4
96.3
87.1
103
93.6
107
96.8
114
103
125
113
134
121
139
126
151
137
160
146
179
162
Maximum
Maximum
Peak Pulse
Reverse
Surge Current Leakage at
I
PPM
(A)
V
WM
ID (µA)
(Note 5)
6.2
6.9
5.6
6.2
5.2
5.8
5
5.5
4.7
5.2
4.4
4.9
4.2
4.6
3.9
4.3
3.7
4.1
3.5
3.9
3.2
3.5
3
3.3
2.9
3.2
2
2.2
1.9
2.1
1.7
1.9
5
Device
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
CN
CP
CQ
CR
CS
CT
CU
CV
CW
CX
CY
CZ
RD
RE
RF
RG
RH
RK
RL
RM
RN
RP
RQ
RR
RS
RT
RU
RV
RW
RX
RY
RZ
40
44.4
43
47.8
45
50
48
53.3
51
56.7
54
60
58
64.4
60
66.7
64
71.1
70
77.8
75
83.3
78
86.7
85
94.4
90
100
100
111
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Page <5>
26/05/11 V1.1
