SMAJ5.0 thru SMAJ170CA, e3
SURFACE MOUNT 500 Watt
Transient Voltage Suppressor
SCOTTSDALE DIVISION
DESCRIPTION
This SMAJ5.0-170A series of surface mount 500 W Transient Voltage
Suppressors (TVSs) protects a variety of voltage-sensitive components from
destruction or degradation. The package outline is similar to the DO-214AC or
DO-214BA. It is also available in a unidirectional configuration or as bidirectional
with a C or CA suffix part number as well as RoHS Compliant with an “e3”suffix.
Their response time is virtually instantaneous. As a result, they can be used for
protection from ESD or EFT per IEC61000-4-2 and IEC61000-4-4, or for
inductive switching environments and induced RF protection. They can also
protect from secondary lightning effects per IEC61000-4-5 and class levels
defined herein. Microsemi also offers numerous other TVS products to meet
higher and lower power demands and special applications.
IMPORTANT:
For the most current data, consult
MICROSEMI’s
website:
http://www.microsemi.com
PACKAGE
WWW .
Microsemi
.C
OM
DO-214AC or BA
(SMAJ)
FEATURES
•
•
•
Selections for 5.0 to 170 volts standoff voltages (V
WM
)
Suppresses transients up to 500 watts @ 10/1000 µs (see
Figure 1) with fast response
Optional 100%
screening for avionics grade
is available
by adding MA prefix to part number for added 100%
temperature cycle -55
o
C to +125
o
C (10X) as well as surge
(3X) and 24 hours HTRB with post test V
Z
& I
R
(in the
operating direction for unidirectional or both directions for
bidirectional)
Options for screening in accordance with MIL-PRF-19500
for JANTX are available by adding MX prefix to the part
number.
Axial-lead equivalent packages for thru-hole mounting
available as P5KE6.8 to P5KE170CA (consult factory for
other surface mount options)
Moisture classification is Level 1 with no dry pack required
per IPC/JEDEC J-STD-020B
RoHS Compliant devices available by adding an “e3” suffix
•
•
•
•
•
•
APPLICATIONS / BENEFITS
Economical surface mount
Available in Unidirectional or as Bidirectional
construction with a C or CA suffix
Protects sensitive components such as IC’s,
2
CMOS, Bipolar, BiCMOS, ECL, DTL, T L, etc.
Protection from switching transients & induced RF
Compliant to IEC61000-4-2 and IEC61000-4-4 for
ESD and EFT protection respectively
Secondary lightning protection per IEC61000-4-5
with 42 Ohms source impedance:
Class 1: SMAJ5.0 to SMAJ100A or CA
Class 2: SMAJ5.0 to SMAJ51A or CA
Class 3: SMAJ5.0 to SMAJ24A or CA
Class 4: SMAJ5.0 to SMAJ12A or CA
Secondary lightning protection per IEC61000-4-5
with 12 Ohms source impedance:
Class 1: SMAJ5.0 to SMAJ30A or CA
Class 2: SMAJ5.0 to SMAJ16A or CA
•
•
•
•
•
MAXIMUM RATINGS
•
•
•
•
•
Peak Pulse Power dissipation at 25 C: 500 watts at
10/1000
μs
(also see Fig 1,2, and 3)
Impulse repetition rate (duty factor): 0.01%
t
clamping
(0 volts to
V
(BR)
min.): < 100 ps theoretical for
unidirectional and < 5 ns for bidirectional
Operating and Storage temperature: -65
º
C to +150
º
C
º
º
Thermal resistance: 15 C/W junction to lead or 80 C/W
junction to ambient when mounted on FR4 PC board (1oz
Cu) with recommended footprint (see last page)
Steady-State Power dissipation: 5 watts at T
L
= 75
o
C, or
1.56 watts at T
A
= 25
º
C when mounted on FR4 PC board
with recommended footprint
Forward Surge Current at 25ºC: 40 amps peak, 8.3 ms
half-sine wave. Maximum voltage of 3.50 V
(unidirectional only)
Solder temperatures: 260
º
C for 10 s (maximum)
º
MECHANICAL AND PACKAGING
•
•
CASE: Void-free transfer molded thermosetting
epoxy body meeting UL94V-0
TERMINALS: C-bend (modified J-bend) leads Tin-
Lead or RoHS compliant annealed matte-Tin plating
solderable per MIL-STD-750, method 2026
POLARITY: Cathode indicated by band. No
marking on bi-directional devices
MARKING: Part number without SMA prefix (e.g.
5.0, 5.0A, 5.0Ae3, 5.0CA, 36A, 36CA, 36CAe3, etc.)
TAPE & REEL option: Standard per EIA-481-1-A
with 12 mm tape, 750 per 7 inch reel or 2500 per 13
inch reel (add “TR” suffix to part number)
WEIGHT: 0.064 grams
See package dimension on last page
•
•
•
SMAJ5.0–170CA, e3
•
•
•
•
•
Copyright
©
2009
MSC0270A, REV L, 5-24-2009
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
SMAJ5.0 thru SMAJ170CA, e3
SURFACE MOUNT 500 Watt
Transient Voltage Suppressor
SCOTTSDALE DIVISION
WWW .
Microsemi
.C
OM
ELECTRICAL CHARACTERISTICS @ 5
o
C
TYPE
NUMBER
REVERSE
STANDOFF
VOLTAGE
V
WM
Volts
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
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
SMAJ36
SMAJ36A
SMAJ40
SMAJ40A
Copyright
©
2009
MSC0270A, REV L, 5-24-2009
5.0
5.0
6.0
6.0
6.5
6.5
7.0
7.0
7.5
7.5
8.0
8.0
8.5
8.5
9.0
9.0
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
20
20
22
22
24
24
26
26
28
28
30
30
33
33
36
36
40
40
MINIMUM
BREAKDOWN
VOLTAGE
V
BR
MIN @ I
(BR)
Volts
6.40
6.40
6.67
6.67
7.22
7.22
7.78
7.78
8.33
8.33
8.89
8.89
9.44
9.44
10.0
10.0
11.1
11.1
12.2
12.2
13.3
13.3
14.4
14.4
15.6
15.6
16.7
16.7
17.8
17.8
18.9
18.9
20.0
20.0
22.2
22.2
24.4
24.4
26.7
26.7
28.9
28.9
31.1
31.1
33.3
33.3
36.7
36.7
40.0
40.0
44.4
44.4
BREAKDOWN
CURRENT
I
(BR)
MAXIMUM
CLAMPING
VOLTAGE
@ I
PP
V
C
Volts
9.6
9.2
11.4
10.3
12.3
11.2
13.3
12.0
14.3
12.9
15.0
13.6
15.9
14.4
16.9
15.4
18.8
17.0
20.1
18.2
22.0
19.9
23.8
21.5
25.8
23.2
26.9
24.4
28.8
26.0
30.5
27.6
32.2
29.2
35.8
32.4
39.4
35.5
43.0
38.9
46.6
42.1
50.0
45.4
53.5
48.4
59.0
53.3
64.3
58.1
71.4
64.5
PEAK
PULSE
CURRENT
(See Fig. 2)
I
PP
Amps
52
54.3
43.9
48.5
40.7
44.7
37.8
41.7
35.0
38.8
33.3
36.7
31.4
34.7
29.5
32.6
26.6
29.4
24.9
27.4
22.7
25.1
21.0
23.2
19.4
21.5
18.8
20.6
17.6
19.2
16.4
18.1
15.5
17.2
13.9
15.4
12.7
14.1
11.6
12.8
10.7
11.9
9.9
11.0
9.3
10.3
8.5
9.4
9.8
8.6
7.0
7.8
MAXIMUM
STANDBY
CURRENT
@ V
WM
I
D
μA
800
800
800
800
500
500
200
200
100
100
50
50
10
10
5
5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Page 2
mA
10
10
10
10
10
10
10
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
SMAJ5.0–170CA, e3
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
SMAJ5.0 thru SMAJ170CA, e3
SURFACE MOUNT 500 Watt
Transient Voltage Suppressor
SCOTTSDALE DIVISION
TYPE
NUMBER
REVERSE
STANDOFF
VOLTAGE
V
WM
MINIMUM
BREAKDOWN
VOLTAGE
V
BR
MIN @ I
(BR)
BREAKDOWN
CURRENT
I
(BR)
MAXIMUM
CLAMPING
VOLTAGE
@ I
PP
V
C
PEAK
PULSE
CURRENT
(See Fig. 2)
I
PP
MAXIMUM
STANDBY
CURRENT
@ V
WM
I
D
WWW .
Microsemi
.C
OM
SMAJ5.0–170CA, e3
Volts
Volts
Amps
μA
mA
Volts
1
6.5
76.7
1
47.8
43
SMAJ43
1
7.2
69.4
1
47.8
43
SMAJ43A
1
6.2
80.3
1
50.0
45
SMAJ45
1
6.9
72.7
1
50.0
45
SMAJ45A
1
5.8
85.5
1
53.3
48
SMAJ48
1
6.5
77.4
1
53.3
48
SMAJ48A
1
5.5
91.1
1
56.7
51
SMAJ51
1
6.1
82.4
1
56.7
51
SMAJ51A
1
5.2
96.3
1
60.0
54
SMAJ54
1
5.7
87.1
1
60.0
54
SMAJ54A
1
4.9
103.0
1
64.4
58
SMAJ58
1
5.3
93.6
1
64.4
58
SMAJ58A
1
4.7
107.0
1
66.7
60
SMAJ60
1
5.2
96.8
1
66.7
60
SMAJ60A
1
4.4
114.0
1
71.1
64
SMAJ64
1
4.9
103.0
1
71.1
64
SMAJ64A
1
4.0
125
1
77.8
70
SMAJ70
1
4.4
113
1
77.8
70
SMAJ70A
1
3.7
134
1
83.3
75
SMAJ75
1
4.1
121
1
83.3
75
SMAJ75A
1
3.6
139
1
86.7
78
SMAJ78
1
4.0
126
1
86.7
78
SMAJ78A
1
3.3
151
1
94.4
85
SMAJ85
1
3.6
137
1
94.4
85
SMAJ85A
1
3.1
160
1
100
90
SMAJ90
1
3.4
146
1
100
90
SMAJ90A
1
2.8
179
1
111
100
SMAJ100
1
3.1
162
1
111
100
SMAJ100A
1
2.6
196
1
122
110
SMAJ110
1
2.8
177
1
122
110
SMAJ110A
1
2.3
214
1
133
120
SMAJ120
1
2.6
193
1
133
120
SMAJ120A
1
2.2
231
1
144
130
SMAJ130
1
2.4
209
1
144
130
SMAJ130A
1
1.9
268
1
167
150
SMAJ150
1
2.1
243
1
167
150
SMAJ150A
1
1.7
287
1
178
160
SMAJ160
1
1.9
259
1
178
160
SMAJ160A
1
1.6
304
1
189
170
SMAJ170
1
1.8
275
1
189
170
SMAJ170A
•
For Bidirectional device types indicate a C or CA suffix after the part number. (i.e.: SMAJ170CA or SMAJ170C). Bidirectional
capacitance is half that shown in figure 4 at zero volts.
•
Microsemi Corp’s SMA series (500 W) surface mountable packages are designed specifically for transient voltage suppression. The
wide leads assure a large surface contact for good heat dissipation, and a low resistance path for surge current flow to ground. These
high speed transient voltage suppressors can be used to effectively protect sensitive components such as integrated circuits and MOS
devices.
Symbol
V
WM
P
PP
V
(BR)
I
D
SYMBOLS & DEFINITIONS
Definition
Symbol
Working Peak (Standoff) Voltage
Peak Pulse Power
Breakdown Voltage
Standby Current
I
PP
V
C
Definition
I
(BR)
Peak Pulse Current
Clamping Voltage
Breakdown Current for V
(BR)
Copyright
©
2009
MSC0270A, REV L, 5-24-2009
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
SMAJ5.0 thru SMAJ170CA, e3
SURFACE MOUNT 500 Watt
Transient Voltage Suppressor
SCOTTSDALE DIVISION
GRAPHS
WWW .
Microsemi
.C
OM
tw Microseconds
FIGURE 1
Peak Pulse Power (P
PP
) – Kilowatts
versus
Pulse Width (tw) - Microseconds
C – Capacitance - Picofarads
Peak Pulse Power (
P
PP
) or continuous
o
Power in Percent of 25 C Rating
SMAJ5.0–170CA, e3
FIGURE 2
Pulse Waveform for Exponential Surge
Lead or Ambient Temperature C
o
FIGURE 3
Derating Curve
V
(BR)
- Breakdown Voltage – Volts
FIGURE 4
Typical Capacitance vs. Breakdown Voltage
Copyright
©
2009
MSC0270A, REV L, 5-24-2009
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 4
SMAJ5.0 thru SMAJ170CA, e3
SURFACE MOUNT 500 Watt
Transient Voltage Suppressor
SCOTTSDALE DIVISION
PACKAGE DIMENSIONS & PAD LAYOUT
PAD LAYOUT
DIM
A
B
C
D
E
F
G
INCHES
MIN
MAX
.067
. 089
.160
.180
.100
.110
.194
.216
.078
.120
.030
.060
-
.02
MM
MIN
1.70
3.99
2.57
4.93
1.98
.76
-
MAX
2.26
4.50
2.79
5.48
3.05
1.52
.51
NOTE
WWW .
Microsemi
.C
OM
1
A
B
C
INCHES
.245
.075
.094
mm
6.22
1.90
2.39
NOTE 1: THIS MAXIMUM DIMENSION IS LARGER THAN THE
STANDARD JEDEC CALL OUT. STANDARD JEDEC
IS .105 INCHES OR 2.66 MM.
SMAJ5.0–170CA, e3
Copyright
©
2009
MSC0270A, REV L, 5-24-2009
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 5
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