SMBJ SERIES
Surface Mount Transient Voltage Suppressor
Voltage Range
5.0 to 170 Volts
600 Watts Peak Power
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
.082(2.08)
.076(1.93)
SMB/DO-214AA
.147(3.73)
.137(3.48)
.187(4.75)
.167(4.25)
.012(.31)
.006(.15)
.103(2.61)
.078(1.99)
.012(.31)
.006(.15)
.056(1.41)
.035(0.90)
.208(5.28)
.200(5.08)
.008(.20)
.004(.10)
Mechanical Data
Case: Molded plastic
Terminals: Solder plated
Polarity: Indicated by cathode bandexcept bipolar
Standard packaging: 12mm tape (EIA STD RS-481)
Weight: 0.093gram
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25℃ambient temperature unless otherwise specified.
Type Number
P
eak
P
ower
D
issipation at
T
A
=25 C, Tp=1ms(
N
ote
O
Symbol
P
PK
Pd
I
FSM
V
F
R
θ
JL
R
θ
JA
T
J
, T
STG
Value
Minimum 600
3
100
3.5 / 5.0
10
55
-65 to + 150
O
Units
Watts
Watts
Amps
Volts
℃/W
O
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) - Unidirectional Only
Maximum Instantaneous Forward Voltage at
50.0A for Unidirectional Only (Note 4)
Typical Thermal Resistance (Note 5)
Operating and Storage Temperature Range
C
Notes: 1
.
Non-repetitive Current Pulse Per Fig. 3 and Derated above T
A
=25 C Per Fig. 2.
2. Mounted on 0.4 x 0.4" (10 x 10mm) 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” (7.0mm 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.
- 602 -
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 COPPER PAD AREAS
2
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- PULSE WAVEFORM
150
FIG.4- MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
PEAK FORWARD SURGE CURRENT. (A)
200
8.3ms Single Half Sine Wave
JEDEC Method
UNIDIRECTIONAL ONLY
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
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
Tj=25
0
C
f=1.0MHz
Vsig=50mVp-p
MEASURED AT
ZERO BIAS
1000
Cj, JUNCTION CAPACITANCE, pF
100
VR MEASURED AT
STAND-OFF
VOLTAGE,V
WM
10
1
2
10
20
100
200
VWM, REVERSE STAND-OFF VOLTAGE. (V)
- 603 -
ELECTRICAL CHARACTERISTICS (TA=25
O
C unless otherwise noted)
Device
Device
Marking code
KD
KE
KF
KG
KH
KK
KL
KM
KN
KP
KQ
KR
KS
KT
KU
KV
KW
KX
KY
KZ
LD
LE
LF
LG
LH
LK
LL
LM
LN
LP
LQ
LR
LS
LT
LU
LV
LW
LX
LY
LZ
MD
ME
MF
MG
MH
MK
ML
MM
MN
MP
MQ
MR
MS
MT
MU
MV
MW
MX
MY
MZ
ND
NE
NF
NG
NH
NK
NL
NM
NN
NP
NQ
NR
NS
NT
NU
NV
NW
NX
NY
NZ
PD
PE
PF
PG
PH
PK
PL
PM
PN
PP
PQ
PR
Breakdown Voltage
VBR
(Volts) (Note 1)
Min
Max
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
47.8
47.8
50.0
50.0
53.3
53.3
56.7
56.7
60.0
60.0
64.4
64.4
66.7
66.7
71.1
71.1
77.8
77.8
83.3
83.3
86.7
86.7
94.4
94.4
100
100
111
111
122
122
133
133
144
144
167
167
178
178
189
189
7.30
7.00
8.15
7.37
8.82
7.98
9.51
8.60
10.3
9.21
10.9
9.83
11.5
10.4
12.2
11.1
13.6
12.3
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
38.0
34.4
40.7
36.8
44.9
40.6
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
86.0
102
92.1
106
95.8
115
104
122
111
136
123
149
135
163
147
176
159
204
185
218
197
231
209
Test Current
@IT(mA)
10
10
10
10
10
10
10
10
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
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
(Volts)
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
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
Maximum
Maximum
Maximum
Reverse Leakage Peak Surge
Clamping
at Vwm
Current IPPM Voltage at IPPM
ID (uA)
(Note 2)(Amps)
VC(Volts)
800.0
800.0
800.0
800.0
500.0
500.0
200.0
200.0
100.0
100.0
50.0
50.0
20.0
20.0
10.0
10.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
65
68
55
61
51
56
47
52
44
48
42
46
39
43
37
40
33
37
31
34
28
31
26
29
24.4
27
23.1
25.1
21.8
24.2
20.0
22.8
19.5
21.5
17.6
19.4
15.0
17.7
14.6
16.0
13.5
14.9
12.6
13.8
11.7
13.0
10.6
11.8
9.8
10.8
8.8
9.7
8.2
9.0
7.8
8.6
7.3
8.1
6.9
7.6
6.5
7.2
6.1
6.7
5.8
6.5
5.5
6.1
5.0
5.5
4.7
5.2
4.5
5.0
4.1
4.6
3.9
4.3
3.5
3.8
3.2
3.5
2.9
3.2
2.7
3.0
2.3
2.5
2.2
2.4
2.0
2.2
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
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
196
177
214
193
231
209
268
243
287
259
304
275
SMBJ5.0
SMBJ5.0A
SMBJ6.0
SMBJ6.0A
SMBJ6.5
SMBJ6.5A
SMBJ7.0
SMBJ7.0A
SMBJ7.5
SMBJ7.5A
SMBJ8.0
SMBJ8.0A
SMBJ8.5
SMBJ8.5A
SMBJ9.0
SMBJ9.0A
SMBJ10
SMBJ10A
SMBJ11
SMBJ11A
SMBJ12
SMBJ12A
SMBJ13
SMBJ13A
SMBJ14
SMBJ14A
SMBJ15
SMBJ15A
SMBJ16
SMBJ16A
SMBJ17
SMBJ17A
SMBJ18
SMBJ18A
SMBJ20
SMBJ20A
SMBJ22
SMBJ22A
SMBJ24
SMBJ24A
SMBJ26
SMBJ26A
SMBJ28
SMBJ28A
SMBJ30
SMBJ30A
SMBJ33
SMBJ33A
SMBJ36
SMBJ36A
SMBJ40
SMBJ40A
SMBJ43
SMBJ43A
SMBJ45
SMBJ45A
SMBJ48
SMBJ48A
SMBJ51
SMBJ51A
SMBJ54
SMBJ54A
SMBJ58
SMBJ58A
SMBJ60
SMBJ60A
SMBJ64
SMBJ64A
SMBJ70
SMBJ70A
SMBJ75
SMBJ75A
SMBJ78
SMBJ78A
SMBJ85
SMBJ85A
SMBJ90
SMBJ90A
SMBJ100
SMBJ100A
SMBJ110
SMBJ110A
SMBJ120
SMBJ120A
SMBJ130
SMBJ130A
SMBJ150
SMBJ150A
SMBJ160
SMBJ160A
SMBJ170
SMBJ170A
Note:
Notes:
1. VBR measured after IT applied for 300us, IT=square wave pulse or equivatent.
2. Surge current waveform per Figure 3 and derate per Figure 2.
3. All terms and symbols are consistant with ANSI/IEEE C62.35.
4. For bidirectional use C or CA suffix for types SMBJ5.0 thorugh types SMBJ170.
5. For bipolar types having VWM of 10 volts(SMBJ8.0C) and under the ID limit is doubled.
- 604 -
TVS APPLICATION NOTES:
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.
- 605 -
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