SMAJ5.0 thru SMAJ170CA
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-214AB or
DO-214AC. It is also available in a unidirectional configuration or as bidirectional
with a C or CA suffix part number. 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-214AB or AC
(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)
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 JAN, JANTX, JANTXV, and JANS are
available by adding MQ, MX, MV, or MSP prefixes
respectively to part numbers.
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
•
•
•
•
•
•
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
º
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
Thermal resistance: 15
º
C/W junction to lead or 80
º
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)
•
•
MECHANICAL AND PACKAGING
CASE: Void-free transfer molded thermosetting
epoxy body meeting UL94V-0
TERMINALS: Gull-wing or C-bend (modified J-bend)
leads, Tin-Lead plated 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, 5.0CA, 36, 36A, 36CA, 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 thru SMAJ170CA
•
•
•
•
•
•
•
•
Copyright
2002
6-01-2004 REV E
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
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
2002
6-01-2004 REV E
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 thru SMAJ170CA
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
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 thru SMAJ170CA
Volts
Amps
Volts
µA
Volts
mA
SMAJ43
43
47.8
1
76.7
6.5
1
SMAJ43A
43
47.8
1
69.4
7.2
1
SMAJ45
45
50.0
1
80.3
6.2
1
SMAJ45A
45
50.0
1
72.7
6.9
1
SMAJ48
48
53.3
1
85.5
5.8
1
SMAJ48A
48
53.3
1
77.4
6.5
1
SMAJ51
51
56.7
1
91.1
5.5
1
SMAJ51A
51
56.7
1
82.4
6.1
1
SMAJ54
54
60.0
1
96.3
5.2
1
SMAJ54A
54
60.0
1
87.1
5.7
1
SMAJ58
58
64.4
1
103.0
4.9
1
SMAJ58A
58
64.4
1
93.6
5.3
1
SMAJ60
60
66.7
1
107.0
4.7
1
SMAJ60A
60
66.7
1
96.8
5.2
1
SMAJ64
64
71.1
1
114.0
4.4
1
SMAJ64A
64
71.1
1
103.0
4.9
1
SMAJ70
70
77.8
1
125
4.0
1
SMAJ70A
70
77.8
1
113
4.4
1
SMAJ75
75
83.3
1
134
3.7
1
SMAJ75A
75
83.3
1
121
4.1
1
SMAJ78
78
86.7
1
139
3.6
1
SMAJ78A
78
86.7
1
126
4.0
1
SMAJ85
85
94.4
1
151
3.3
1
SMAJ85A
85
94.4
1
137
3.6
1
SMAJ90
90
100
1
160
3.1
1
SMAJ90A
90
100
1
146
3.4
1
SMAJ100
100
111
1
179
2.8
1
SMAJ100A
100
111
1
162
3.1
1
SMAJ110
110
122
1
196
2.6
1
SMAJ110A
110
122
1
177
2.8
1
SMAJ120
120
133
1
214
2.3
1
SMAJ120A
120
133
1
193
2.6
1
SMAJ130
130
144
1
231
2.2
1
SMAJ130A
130
144
1
209
2.4
1
SMAJ150
150
167
1
268
1.9
1
SMAJ150A
150
167
1
243
2.1
1
SMAJ160
160
178
1
287
1.7
1
SMAJ160A
160
178
1
259
1.9
1
SMAJ170
170
189
1
304
1.6
1
SMAJ170A
170
189
1
275
1.8
1
•
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
2002
6-01-2004 REV E
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
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 thru SMAJ170CA
FIGURE 2
Pulse Waveform for Exponential Surge
T
L
Lead Temperature C
o
FIGURE 3
Derating Curve
V
(BR)
- Breakdown Voltage – Volts
FIGURE 4
Typical Capacitance vs. Breakdown Voltage
Copyright
2002
6-01-2004 REV E
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
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
.052
.103
.160
.180
.100
.110
.194
.216
.078
.115
.030
.060
-
.02
MM
MIN
1.32
3.99
2.57
4.93
1.98
.76
-
MAX
1.47
4.50
2.79
5.48
2.92
1.52
.51
NOTE
WWW .
Microsemi
.C
OM
1
A
B
C
INCHES
.245
.075
.103
mm
6.22
1.90
2.62
NOTE 1: THIS MAXIMUM DIMENSION IS LARGER THAN THE
STANDARD JEDEC CALL OUT. STANDARD JEDEC
IS .105 INCHES OR 2.66 MM.
SMAJ5.0 thru SMAJ170CA
Copyright
2002
6-01-2004 REV E
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 5
