SMCJ SERIES
Surface Mount Transient Voltage Suppressor
Voltage Range
5.0 to 170 Volts
1500 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
Fast response time:
BV min.
Typical I
R
less than 1 A above 10V
High temperature soldering guaranteed:
260°C / 10 seconds at terminals
Plastic material used carries Underwriters Laboratory
Flammability Classification 94V-0
1500 watts peak pulse power capability with a 10 X 1000 us
waveform by 0.01% duty cycle
.129(3.27)
.118(3.0)
SMC/DO-214AB
.245(6.22)
.220(5.59)
.280(7.11)
.260(6.60)
.012(.31)
.006(.15)
Mechanical Data
Case: Molded plastic
Terminals: Solder plated
Polarity: Indicated by cathode band
Standard packaging: 16mm tape (EIA STD RS-481)
Weight: 0.21gram
.103(2.62)
.079(2.00)
.060(1.52)
.030(0.76)
.320(8.13)
.305(7.75)
.008(.20)
.004(.10)
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25°C ambient temperature unless otherwise specified.
Type Number
P
eak
P
ower
D
issipation at
T
A
=25°C, Tp=1ms
(
N
ote 1)
Symbol
P
PK
I
FSM
V
F
T
J
, T
STG
Value
Minimum 1500
200
3.5 / 5.0
-55 to + 150
Units
Watts
Amps
Volts
°C
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
100.0A for Unidirectional Only (Note 4)
Operating and Storage Temperature Range
Notes: 1. Non-repetitive Current Pulse Per Fig. 3 and Derated above T
A
=25
O
C Per Fig. 2.
Notes:
2. Mounted on 8.0mm
2
(.013mm Thick) Copper Pads to Each Terminal.
Notes:
3. 8.3ms Single Half Sine-wave or Equivalent Square Wave, Duty Cycle=4 Pulses Per Minute
Notes: 3.
Maximum.
Notes:
4. V
F
=3.5V on SMCJ5.0 thru SMCJ90 Devices and V
F
=5.0V on SMCJ100 thru SMCJ170 Devices.
Devices for Bipolar Applications
Notes:
1. For Bidrectional Use C or CA Suffix for Types SMCJ5.0 through Types SMCJ170.
Notes:
2. Electrical Characteristics Apply in Both Directions.
- 368 -
REV.1 Oct.-2003
RATINGS AND CHARACTERISTIC CURVES (SMCJ SERIES)
FIG.1- PEAK PULSE POWER RATING CURVE
PEAK PULSE POWER (Pppm) or CURRENT (lpp)
DERATING IN PERCENTAGE, %
100
NON-REPETITIVE
PULSE WAVEFORM
SHOWN in FIG. 3
T
A
=25
0
C
FIG.2- PULSE DERATING CURVE
100
Pppm, PEAK PULSE POWER, KW
75
10
50
1.0
25
0.31X0.31" (8.0X8.0mm) 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- 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
BIDIRECTIONAL
10000
20,000
FIG.6- TYPICAL JUNCTION CAPACITANCE
Tj=25
0
C
f=1.0MHz
Vsig=50mVp-p
MEASURED AT
ZERO BIAS
Tj=25
0
C
f=1.0MHz
Vsig=50mVp-p
MEASURED AT
ZERO BIAS
Cj, JUNCTION CAPACITANCE, pF
1000
10,000
1,000
Cj, JUNCTION CAPACITANCE, pF
MEASURED AT
STAND-OFF
VOLTAGE,V
WM
100
VR MEASURED AT
STAND-OFF
VOLTAGE,V
WM
100
10
1
10
100
400
VWM, REVERSE STAND-OFF VOLTAGE. (V)
10
1
10
100
400
VWM, REVERSE STAND-OFF VOLTAGE. (V)
- 369 -
ELECTRICAL CHARACTERISTICS (TA=25
O
C unless otherwise noted)
Device Type
Modified
"J" Bend Lead
SMCJ5.0
SMCJ5.0A
SMCJ6.0
SMCJ6.0A
SMCJ6.5
SMCJ6.5A
SMCJ7.0
SMCJ7.0A
SMCJ7.5
SMCJ7.5A
SMCJ8.0
SMCJ8.0A
SMCJ8.5
SMCJ8.5A
SMCJ9.0
SMCJ9.0A
SMCJ10
SMCJ10A
SMCJ11
SMCJ11A
SMCJ12
SMCJ12A
SMCJ13
SMCJ13A
SMCJ14
SMCJ14A
SMCJ15
SMCJ15A
SMCJ16
SMCJ16A
SMCJ17
SMCJ17A
SMCJ18
SMCJ18A
SMCJ20
SMCJ20A
SMCJ22
SMCJ22A
SMCJ24
SMCJ24A
SMCJ26
SMCJ26A
SMCJ28
SMCJ28A
SMCJ30
SMCJ30A
SMCJ33
SMCJ33A
SMCJ36
SMCJ36A
SMCJ40
SMCJ40A
SMCJ43
SMCJ43A
Device
Marking
Code
GDD
GDE
GDF
GDG
GDH
GDK
GDL
GDM
GDN
GDP
GDQ
GDR
GDS
GDT
GDU
GDV
GDW
GDX
GDY
GDZ
GED
GEE
GEF
GEG
GEH
GEK
GEL
GEM
GEN
GEP
GEQ
GER
GES
GET
GEU
GEV
GEW
GEX
GEY
GEZ
GFD
GFE
GFF
GFG
GFH
GFK
GFL
GFM
GFN
GFP
GFQ
GFR
GFS
GFT
Breakdown
Voltage
V(BR) (Volts)
(Note 1)
(MIN / MAX)
Test
Current
at I
T
(mA)
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
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
V
WM
(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
10.0
10.0
11.0
11.0
12.0
12.0
13.0
13.0
14.0
14.0
15.0
15.0
16.0
16.0
17.0
17.0
18.0
18.0
20.0
20.0
22.0
22.0
24.0
24.0
26.0
26.0
28.0
28.0
30.0
30.0
33.0
33.0
36.0
36.0
40.0
40.0
43.0
43.0
Maximum
Reverse
Leakage
at V
WM
(Note 3) I
D
(uA)
Maximum
Peak Pulse
Surge
Current I
PPM
(Note 2) (Amps)
6.40 / 7.3
6.40 / 7.0
6.67 / 8.15
6.67 / 7.37
7.22 / 8.82
7.22 / 7.98
7.78 / 9.51
7.78 / 8.60
8.33 / 10.3
8.33 / 9.21
8.89 / 10.9
8.89 / 9.83
9.44 / 11.5
9.44 / 10.4
10.0 / 12.2
10.0 / 11.1
11.1 / 13.6
11.1 / 12.3
12.2 / 14.9
12.2 / 13.5
13.3 / 16.3
13.3 / 14.7
14.4 / 17.6
14.4 / 15.9
15.6 / 19.1
15.6 / 17.2
16.7 / 20.4
16.7 / 18.5
17.8 / 21.8
17.8 / 19.7
18.9 / 23.1
18.9 / 20.9
20.0 / 24.4
20.0 / 22.1
22.2 / 27.1
22.2 /24.5
24.4 / 29.8
24.4 / 26.9
26.7 / 32.6
26.7 / 29.5
28.9 / 35.3
28.9 / 31.9
31.1 / 38.0
31.1 / 34.4
33.3 / 40.7
33.3 / 36.8
36.7 / 44.9
36.7 / 40.6
40.0 / 48.9
40.0 / 44.2
44.4 / 54.3
44.4 / 49.1
47.8 / 58.4
47.8 / 52.8
1000
1000
1000
1000
500
500
200
200
100
100
50
50
20
20
10
10
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
164.0
171.0
138.0
152.0
128.0
140.0
118.0
131.0
110.0
122.0
105.0
115.0
99.0
109.0
93.0
102.0
83.0
92.0
78.0
86.0
71.0
79.0
66.0
73.0
61.0
67.0
58.0
64.0
54.0
60.0
51.0
57.0
48.0
53.0
43.0
48.0
39.0
44.0
36.0
40.0
33.0
37.0
31.0
34.0
29.0
32.0
26.0
29.0
24.0
27.0
22.0
24.0
20.0
22.0
Maximum
Clamping
Voltage at I
PPM
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
76.7
69.4
- 370 -
ELECTRICAL CHARACTERISTICS (TA=25 C unless otherwise noted)
Device Type
Modified
"J" Bend Lead
SMCJ45
SMCJ45A
SMCJ48
SMCJ48A
SMCJ51
SMCJ51A
SMCJ54
SMCJ54A
SMCJ58
SMCJ58A
SMCJ60
SMCJ60A
SMCJ64
SMCJ64A
SMCJ70
SMCJ70A
SMCJ75
SMCJ75A
MSJC78
SMCJ78A
SMCJ85
SMCJ85A
SMCJ90
SMCJ90A
SMCJ100
SMCJ100A
SMCJ110
SMCJ110A
SMCJ120
SMCJ120A
SMCJ130
SMCJ130A
SMCJ150
SMCJ150A
SMCJ160
SMCJ160A
SMCJ170
SMCJ170A
Device
Marking
Code
GFU
GFV
GFW
GFX
GFY
GFZ
GGD
GGE
GGF
GGG
GGH
GGK
GGL
GGM
GGN
GGP
GGQ
GGR
GGS
GGT
GGU
GGV
GGW
GGX
GGY
GGZ
GHD
GHE
GHF
GHG
GHH
GHK
GHL
GHM
GHN
GHP
GHQ
GHR
Breakdown
Voltage
V(
BR
) (Volts)
(Note 1)
(MIN / MAX)
O
Test
Current
at I
T
(mA)
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
V
WM
(Volts)
45.0
45.0
48.0
48.0
51.0
51.0
54.0
54.0
58.0
58.0
60.0
60.0
64.0
64.0
70.0
70.0
75.0
75.0
78.0
78.0
85.0
85.0
90.0
90.0
100.0
100.0
110.0
110.0
120.0
120.0
130.0
130.0
150.0
150.0
160.0
160.0
170.0
170.0
Maximum
Reverse
Leakage
at V
WM
(Note 3) I
D
(uA)
Maximum
Peak Pulse
Surge
Current I
PPM
(Note 2) (Amps)
50.0 / 61.1
50.0 / 55.3
53.3 / 65.1
53.3 / 58.9
56.7 / 69.3
56.7 / 62.7
60.0 / 73.3
60.0 / 66.3
64.4 / 78.7
64.4 / 71.2
66.7 / 81.5
66.7 / 73.7
71.1 / 86.9
71.1 / 78.6
77.8 / 95.1
77.8 / 86.0
83.3 / 102
83.3 / 92.1
86.7 / 106
86.7 / 95.8
94.4 / 115
94.4 / 104
100 / 122
100 / 111
111 / 136
111 / 123
122 / 149
122 / 135
133 / 163
133 / 147
144 / 176
144 / 159
167 / 204
167 / 185
178 / 218
178 / 197
189 / 231
189 / 209
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
19.0
21.0
18.0
20.0
17.0
19.0
16.0
18.0
15.0
16.0
14.0
16.0
13.8
15.0
12.6
13.9
11.7
13.0
11.3
12.5
10.4
11.5
9.8
10.7
8.8
9.7
8.0
8.9
7.3
8.1
6.8
7.5
5.8
6.4
5.4
6.0
5.1
5.7
Maximum
Clamping
Voltage at I
PPM
V
C
(Volts)
80.3
72.7
85.5
77.4
91.1
82.4
96.3
87.1
103.0
93.6
107.0
96.8
114.0
103.0
125.0
113.0
134.0
121.0
139.0
126.0
151.0
137.0
160.0
146.0
179.0
162.0
196.0
177.0
214.0
193.0
231.0
209.0
268.0
243.0
287.0
259.0
304.0
275.0
Notes:
1. V(
BR
) measured after I
T
applied for 300us, I
T
=Square wave pulse or equivalent.
2. Surge current waveform per Fig. 3 and derate per Figure 2.
3. For bidirectional types having V
WM
of 10 Volts and less, the I
D
limit is doubled
4. all terms and symbols are consistent with ANSI/IEEE C62.35
- 371 -
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.
- 372 -
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