SMBJ SERIES
600 Watts Surface Mount
Transient Voltage Suppressor
SMB/DO-214AA
Features
For surface mounted application
Low profile package
Built-in strain relief
Glass passivated junction
Excellent clamping capability
Fast response time: Typically less than 1.0ps
from 0 volt to BV min.
Typical I
R
less than 1μA above 10V
High temperature soldering guaranteed:
260
o
C / 10 seconds at terminals
Plastic material used carries Underwriters
Laboratory Flammability Classification 94V-0
600 watts peak pulse power capability with a 10
x 1000 us waveform by 0.01% duty cycle
Dimensions in inches and (millimeters)
Mechanical Data
Case: Molded plastic
Terminals: Pure tin plated lead free,
Polarity: Indicated by cathode band except
bipolar
Weight: 0.093gram
Maximum Ratings and Electrical Characteristics
Rating at 25
o
C ambient temperature unless otherwise specified.
Type Number
P
eak
P
ower
D
issipation at
T
A
=25 C, Tp=1ms (
N
ote 1)
o
Steady State Power Dissipation
Peak Forward Surge Current, 8.3 ms Single Half
Sine-wave Superimposed on Rated Load
(JEDEC method) (Note 2, 3) - Unidirectional Only
Maximum Instantaneous Forward Voltage at 50.0A for
Unidirectional Only (Note 4)
Typical Thermal Resistance (Note 5)
Symbol
P
PK
Pd
I
FSM
V
F
R
θJC
R
θJA
T
J
, T
STG
Value
Minimum 600
3
100
3.5 / 5.0
10
55
-65 to + 150
Units
Watts
Watts
Amps
Volts
o
C/W
o
Operating and Storage Temperature Range
C
o
1. Non-repetitive Current Pulse Per Fig. 3 and Derated above T
A
=25 C Per Fig. 2.
Notes:
2. Mounted on 5.0mm
2
(.013 mm Thick) Copper Pads to Each Terminal.
3. 8.3ms Single Half Sine-wave or Equivalent Square Wave, Duty Cycle=4 pulses Per Minute Maximum.
4. V
F
=3.5V on SMBJ5.0 thru SMBJ90 Devices and V
F
=5.0V on SMBJ100 thru SMBJ170 Devices.
5. Measured on P.C.B. with 0.27 x 0.27” (7.0 x 7.0mm) Copper Pad Areas
.
Devices for Bipolar Applications
1. For Bidrectional Use C or CA Suffix for Types SMBJ5.0 through Types SMBJ170.
2. Electrical Characteristics Apply in Both Directions.
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SMBJ SERIES
600 Watts Surface Mount
Transient Voltage Suppressor
RATINGS AND CHARACTERISTIC CURVES (SMBJ SERIES)
FIG.1- PEAK PULSE POWER RATING CURVE
NON-REPETITIVE
PULSE WAVEFORM
SHOWN in FIG. 3
T
A
=25
0
C
FIG.2- PULSE DERATING CURVE
PEAK PULSE POWER (Pppm) or CURRENT (lpp)
DERATING IN PERCENTAGE, %
100
100
Pppm, PEAK PULSE POWER, KW
75
10
50
1
25
0.2" sq 5.0mm
2
COPPER PAD AREAS
0.1
0.1 s
1.0 s
10 s
100 s
1.0ms
10ms
0
0
25
50
75
100
125
O
150
175
200
td. PULSE WIDTH, sec.
TA, AMBIENT TEMPERATURE. C
FIG.3- CLAMPING POWER PULSE WAVEFORM
150
FIG.4- MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
200
PEAK FORWARD SURGE CURRENT. (A)
lppm, PEAK PULSE CURRENT % IRSM
PULSE WIDTH (td) is DEFINED
tr=10 sec. AS THE POINT WHERE THE PEAK
CURRENT DECAYS to 50% of lppm
100
100
8.3ms Single Half Sine Wave
JEDEC Method
UNIDIRECTIONAL ONLY
PEAK VALUE
lppm
HALF VALUE- lpp
2
50
10/1000 sec. WAVEFORM
AS DEFINED BY R.E.A.
0
0
td
10
1.0
2.0
t, TIME, ms
3.0
4.0
1
10
NUMBER OF CYCLES AT 60Hz
100
FIG.5- TYPICAL JUNCTION CAPACITANCE
6000
VR=0
1000
Cj, JUNCTION CAPACITANCE, pF
Tj=25
0
C
f=1.0MHz
Vsig=50mVp-p
VR-RATED
STAND-OFF
VOLTAGE
100
10
1
2
10
20
100
200
VWM, REVERSE STAND-OFF VOLTAGE. (V)
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SMBJ SERIES
600 Watts Surface Mount
Transient Voltage Suppressor
Part
Number
(Uni)
Part
Number
(Bi)
Device Marking
Code
Reverse
Stand off
Voltage
V
R
(Volts)
5.0
6.0
6.5
7.0
7.5
8.0
8.5
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
20.0
22.0
24.0
26.0
28.0
30.0
33.0
36.0
40.0
43.0
45.0
48.0
51.0
54.0
58.0
60.0
64.0
70.0
75.0
78.0
85.0
90.0
100.0
110.0
120.0
130.0
150.0
160.0
170.0
180.0
200.0
220.0
250.0
300.0
350.0
400.0
440.0
Breakdown
Voltage
V
BR
(Volts) @
I
T
MIN
MAX
6.40
7.00
6.67
7.37
7.22
7.98
7.78
8.60
8.33
9.21
8.89
9.83
9.44
10.40
10.00
11.10
11.10
12.30
12.20
13.50
13.30
14.70
14.40
15.90
15.60
17.20
16.70
18.50
17.80
19.70
18.90
20.90
20.00
22.10
22.20
24.50
24.40
26.90
26.70
29.50
28.90
31.90
31.10
34.40
33.30
36.80
36.70
40.60
40.00
44.20
44.40
49.10
47.80
52.80
50.00
55.30
53.30
58.90
56.70
62.70
60.00
66.30
64.40
71.20
66.70
73.70
71.10
78.60
77.80
86.00
83.30
92.10
86.70
95.80
94.40
104.00
100.00 111.00
111.00 123.00
122.00 135.00
133.00 147.00
144.00 159.00
167.00 185.00
178.00 197.00
189.00 209.00
201.00 222.00
224.00 247.00
246.00 272.00
279.00 309.00
335.00 371.00
391.00 432.00
447.00 494.00
492.00 543.00
Test
Current
I
T
(mA)
Maximum
Clamping
Voltage
V
C
@
I
PP
(Volts)
9.2
10.3
11.2
12.0
12.9
13.6
14.4
15.4
17.0
18.2
19.9
21.5
23.2
24.4
26.0
27.6
29.2
32.4
35.5
38.9
42.1
45.4
48.4
53.3
58.1
64.5
69.4
72.7
77.4
82.4
87.1
93.6
96.8
103.0
113.0
121.0
126.0
137.0
146.0
162.0
177.0
193.0
209.0
243.0
259.0
275.0
292.0
324.0
356.0
405.0
486.0
567.0
648.0
713.0
Maximum
Peak Pulse
Current
I
PP
(A)
65.3
58.3
53.6
50.0
46.6
44.2
41.7
39.0
35.3
33.0
30.2
28.0
25.9
24.6
23.1
21.8
20.6
18.6
16.9
15.5
14.3
13.3
12.4
11.3
10.4
9.3
8.7
8.3
7.8
7.3
6.9
6.5
6.2
5.9
5.3
5.0
4.8
4.4
4.1
3.7
3.4
3.1
2.9
2.5
2.3
2.2
2.1
1.9
1.7
1.5
1.3
1.1
0.9
0.9
Maximum
Reverse
Leakage
I
R
@ V
R
(µA)
800
800
500
200
100
50
20
10
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
UNI
SMBJ5.0A
SMBJ6.0A
SMBJ6.5A
SMBJ7.0A
SMBJ7.5A
SMBJ8.0A
SMBJ8.5A
SMBJ9.0A
SMBJ10A
SMBJ11A
SMBJ12A
SMBJ13A
SMBJ14A
SMBJ15A
SMBJ16A
SMBJ17A
SMBJ18A
SMBJ20A
SMBJ22A
SMBJ24A
SMBJ26A
SMBJ28A
SMBJ30A
SMBJ33A
SMBJ36A
SMBJ40A
SMBJ43A
SMBJ45A
SMBJ48A
SMBJ51A
SMBJ54A
SMBJ58A
SMBJ60A
SMBJ64A
SMBJ70A
SMBJ75A
SMBJ78A
SMBJ85A
SMBJ90A
SMBJ100A
SMBJ110A
SMBJ120A
SMBJ130A
SMBJ150A
SMBJ160A
SMBJ170A
SMBJ180A
SMBJ200A
SMBJ220A
SMBJ250A
SMBJ300A
SMBJ350A
SMBJ400A
SMBJ440A
SMBJ5.0CA
SMBJ6.0CA
SMBJ6.5CA
SMBJ7.0CA
SMBJ7.5CA
SMBJ8.0CA
SMBJ8.5CA
SMBJ9.0CA
SMBJ10CA
SMBJ11CA
SMBJ12CA
SMBJ13CA
SMBJ14CA
SMBJ15CA
SMBJ16CA
SMBJ17CA
SMBJ18CA
SMBJ20CA
SMBJ22CA
SMBJ24CA
SMBJ26CA
SMBJ28CA
SMBJ30CA
SMBJ33CA
SMBJ36CA
SMBJ40CA
SMBJ43CA
SMBJ45CA
SMBJ48CA
SMBJ51CA
SMBJ54CA
SMBJ58CA
SMBJ60CA
SMBJ64CA
SMBJ70CA
SMBJ75CA
SMBJ78CA
SMBJ85CA
SMBJ90CA
SMBJ100CA
SMBJ110CA
SMBJ120CA
SMBJ130CA
SMBJ150CA
SMBJ160CA
SMBJ170CA
SMBJ180CA
SMBJ200CA
SMBJ220CA
SMBJ250CA
SMBJ300CA
SMBJ350CA
SMBJ400CA
SMBJ440CA
KE
KG
KK
KM
KP
KR
KT
KV
KX
KZ
LE
LG
LK
LM
LP
LR
LT
LV
LX
LZ
ME
MG
MK
MM
MP
MR
MT
MV
MX
MZ
NE
NG
NK
NM
NP
NR
NT
NV
NX
NZ
PE
PG
PK
PM
PP
PR
PT
PV
PX
PZ
QE
QG
QK
QM
BI
AE
AG
AK
AM
AP
AR
AT
AV
AX
AZ
BE
BG
BK
BM
BP
BR
BT
BV
BX
BZ
CE
CG
CK
CM
CP
CR
CT
CV
CX
CZ
DE
DG
DK
DM
DP
DR
DT
DV
DX
DZ
EE
EG
EK
EM
EP
ER
ET
EV
EX
EZ
FE
FG
FK
FM
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
1
1
1
1
1
1
For bidirectional type having Vrwm of 10 volts and less, the IR limit is double.
For parts without A , the VBR is + 10%
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SMBJ SERIES
TVS APPLICATION NOTES:
600 Watts Surface Mount
Transient Voltage Suppressor
Transient Voltage Suppressors may be used at various points in a circuit to provide various degrees of
protection. The following is a typical linear power supply with transient voltage suppressor units placed at
different points. All provide protection of the load.
FIGURE 1
Transient Voltage Suppressors 1 provides maximum protection. However, the system will probably require
replacement of the line fuse(F) since it provides a dominant portion of the series impedance when a surge is
encountered.
However, we do not recommend to use the TVS diode here, unless we can know the electric circuit
impedance and the magnitude of surge rushed into the circuit. Otherwise the TVS diode is easy to be
destroyed by voltage surge.
Transient Voltage Suppressor 2 provides execllent protection of circuitry excluding the transformer(T).
However, since the transformer is a large part of the series impedance, the chance of the line fuse opening
during the surge condition is reduced.
Transient Voltage Suppressor 3 provides the load with complete protection. It uses a unidirectional
Transient Voltage Suppressor, which is a cost advantage. The series impedance now includes the line fuse,
transformer, and bridge rectifier(B) so failure of the line fuse is further reduced. If only Transient Voltage
Suppressor 3 is in use, then the bridge rectifier is unprotected and would require a higher voltage and current
rating to prevent failure by transients.
Any combination of these three, or any one of these applications, will prevent damage to the load. This would
require varying trade-offs in power supply protection versus maintenance(changing the time fuse).
An additional method is to utilize the Transient Voltage Suppressor units as a controlled avalanche bridge.
This reduces the parts count and incorporates the protection within the bridge rectifier.
FIGURE 2
RECOMMENDED PAD SIZES
The pad dimensions should be 0.010"(0.25mm) longer than the contact size, in the lead axis.
This allows a solder fillet to form, see figure below. Contact factory for soldering methods.
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