Surface Mount Transient Voltage Suppressors (TVS)
SMF Series
Description
The SMF series is designed specifically to protect sensitive electronic
equipment from voltage transients induced by lightning and other transient
voltage events.
5.0 To 190 V
200W
Uni-directional
Bi-directional
Features
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
Compatible with industrial standard package SOD-123
For surface mounted applications in order to optimize board space
Low leakage
Uni and Bidirectional unit
Glass passivated junction
Low inductance
Excellent clamping capability
200W Peak power capability at 10
×
1000µs waveform Repetition rate
(duty cycle):0.01%
Fast response time: typically less than 1.0ps from 0 Volts to V
BR
min
High Temperature soldering: 260°C/40 seconds at terminals
Typical maximum temperature coefficient
ΔV
BR
= 0.1%
×
V
BR
@25°C×
ΔT
Plastic package has Underwriters Laboratory Flammability 94V-0
Matte tin lead–free Plated
Halogen free and RoHS compliant
Typical failure mode is short from over-specified voltage or current
Whisker test is conducted based on JEDEC JESD201A per its table
4a and 4c
IEC-61000-4-2 ESD 15kV(Air), 8kV (Contact)
ESD protection of data lines in accordance with IEC 61000-4-2
(IEC801-2)
EFT protection of data lines in accordance with IEC 61000-4-4
(IEC801-4)
Functional Diagram
Bi-directional
Cathode
Uni-direction
Anode
Applications
TVS devices are ideal for the protection of I/O interfaces, V
CC
bus and other vulnerable circuits used in Telecom, Computer,
Industrial and Consumer electronic applications.
Maximum Ratings
(T
A
=25℃ unless otherwise noted)
Parameter
Symbol
P
PPM
P
PPM
I
PP
P
M(AV)
I
FSM
V
F
T
J
, T
STG
Value
200
1000
See Next Table
0.4
20
3.5
-55 to +150
Unit
Watts
Watts
Amps
Watt
Amps
Voltage
°C
Peak Pulse Power Dissipation with a 10/1000µs waveform (Fig.1)(Note
1), (Note 2)
Peak Pulse Power Dissipation with a 8/20µs waveform (Fig.1)(Note 1),
(Note 2)
Peak Pulse Current with a 10/1000µs waveform.(Note1,Fig.3)
Power Dissipation on Infinite Heat Sink at T
L
=75°C
Peak Forward Surge Current, 8.3ms Single Half Sine Wave (Note 3)
Maximum Instantaneous Forward Voltage at 25A for Unidirectional Only
(Note 4)
Operating junction and Storage Temperature Range.
Notes:
1. Non-repetitive current pulse, per Fig. 3 and derated above T
A
= 25°C per Fig. 2.
2. Mounted on 5.0mm x 5.0mm (0.03mm thick) Copper Pads to each terminal.
3. 8.3ms single half sine-wave, or equivalent square wave, Duty cycle = 4 pulses per minutes maximum.
4. V
F
< 3.5V for V
BR
< 200V and V
F
< 6.5V for V
BR
> 201V.
UN Semiconductor Co., Ltd.
Revision
October 18, 2013
www.unsemi.com.tw
1/6
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
Surface Mount Transient Voltage Suppressors (TVS)
SMF Series
5.0 To 190 V
200W
Electrical Characteristics
Part Number
Uni
SMF5.0A
SMF6.0A
SMF6.5A
SMF7.0A
SMF7.5A
SMF8.0A
SMF8.5A
SMF9.0A
SMF10A
SMF11A
SMF12A
SMF13A
SMF14A
SMF15A
SMF16A
SMF17A
SMF18A
SMF19A
SMF20A
SMF22A
SMF24A
SMF26A
SMF28A
SMF30A
SMF33A
SMF36A
SMF40A
SMF43A
SMF45A
SMF48A
SMF51A
SMF54A
SMF58A
SMF60A
SMF64A
SMF70A
SMF75A
SMF78A
SMF80A
SMF85A
SMF90A
SMF100A
SMF110A
SMF120A
SMF130A
SMF140A
SMF150A
SMF160A
SMF170A
SMF180A
SMF190A
Note:
Bi
SMF5.0CA
SMF6.0CA
SMF6.5CA
SMF7.0CA
SMF7.5CA
SMF8.0CA
SMF8.5CA
SMF9.0CA
SMF10CA
SMF11CA
SMF12CA
SMF13CA
SMF14CA
SMF15CA
SMF16CA
SMF17CA
SMF18CA
SMF19CA
SMF20CA
SMF22CA
SMF24CA
SMF26CA
SMF28CA
SMF30CA
SMF33CA
SMF36CA
SMF40CA
SMF43CA
SMF45CA
SMF48CA
SMF51CA
SMF54CA
SMF58CA
SMF60CA
SMF64CA
SMF70CA
SMF75CA
SMF78CA
SMF80CA
SMF85CA
SMF90CA
SMF100CA
SMF110CA
SMF120CA
SMF130CA
SMF140CA
SMF150CA
SMF160CA
SMF170CA
SMF180CA
SMF190CA
(T
A
=25°C unless otherwise noted)
Marking
Uni
FE
FG
FK
FM
FP
FR
FT
FV
FX
FZ
HE
HG
HK
HM
HP
HR
HT
HB
HV
HX
HZ
JE
JG
JK
JM
JP
JR
JT
JV
JX
JZ
XE
XG
XK
XM
XP
XR
XT
XB
XV
XX
XZ
TE
TG
TK
TB
TM
TP
TR
TT
TV
Bi
KE
KG
KK
KM
KP
KR
KT
KV
KX
KZ
LE
LG
LK
LM
LP
LR
LT
LB
LV
LX
LZ
ME
MG
MK
MM
MP
MR
MT
MV
MX
MZ
NE
NG
NK
NM
NP
NR
NT
NB
NV
NX
NZ
PE
PG
PK
PB
PM
PP
PR
PT
PV
Reverse
Stand-Off
Voltage
V
RWM
(V)
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
19.0
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
80.0
85.0
90.0
100.0
110.0
120.0
130.0
140.0
150.0
160.0
170.0
180.0
190.0
Breakdown
Voltage V
BR
(V)
@I
T
MIN
6.40
6.67
7.22
7.78
8.33
8.89
9.44
10.00
11.10
12.20
13.30
14.40
15.60
16.70
17.80
18.90
20.00
21.10
22.20
24.40
26.70
28.90
31.10
33.30
36.70
40.00
44.40
47.80
50.00
53.30
56.70
60.00
64.40
66.70
71.10
77.80
83.30
86.70
88.80
94.40
100.00
111.00
122.00
133.00
144.00
155.00
167.00
178.00
189.00
200.00
211.00
MAX
7.00
7.37
7.98
8.60
9.21
9.83
10.40
11.10
12.30
13.50
14.70
15.90
17.20
18.50
19.70
20.90
22.10
23.30
24.50
26.90
29.50
31.90
34.40
36.80
40.60
44.20
49.10
52.80
55.30
58.90
62.70
66.30
71.20
73.70
78.60
86.00
92.10
95.80
97.60
104.00
111.00
123.00
135.00
147.00
159.00
171.00
185.00
197.00
209.00
220.00
232.00
Test
Current
I
T
(mA)
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
Maximum
Clamping
Voltage
V
C
@I
PP
(V)
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
30.6
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
129.0
137.0
146.0
162.0
177.0
193.0
209.0
224.0
243.0
259.0
275.0
292.0
308.0
Maximum
Peak
Pulse
Current
I
PP
(A)
21.74
19.42
17.86
16.67
15.50
14.71
13.89
12.99
11.76
10.99
10.05
9.30
8.62
8.20
7.69
7.25
6.85
6.54
6.17
5.63
5.14
4.75
4.41
4.13
3.75
3.44
3.10
2.88
2.75
2.58
2.43
2.30
2.14
2.07
1.94
1.77
1.65
1.59
1.55
1.46
1.37
1.23
1.13
1.04
0.96
0.89
0.82
0.77
0.73
0.69
0.69
Maximum
Reverse
Leakage I
R
@V
RWM
(μA)
400
400
250
100
50
25
10
5
2.5
2.5
2.5
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
1
1
1
1
1. Suffix 'A ' denotes 5% tolerance device. Without 'A' denotes 10% tolerance device
2. Add suffix 'C 'or ' CA ' after part number to specify Bi-directional devices
3. For Bi-Directional devices having V
R
of 10 volts and under, the I
R
limit is double
UN Semiconductor Co., Ltd.
Revision
October 18, 2013
www.unsemi.com.tw
2/6
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
Surface Mount Transient Voltage Suppressors (TVS)
SMF Series
5.0 To 190 V
200W
Ratings and Characteristic Curves (T
A
=25°C unless otherwise noted)
Figure 1 - Peak Pulse Power Rating Curve
10
Figure 2 - Pulse Derating Curve
Peak Pulse Power (P
PP
) or Current (I
PP
)
Derating in Percentage %
100
P
PPM
- Peak Pulse Power (kW)
80
60
1
40
20
0.1
0.1
1
10
100
t
d
- Pulse Width (μs)
1000
10000
0
0
25
50
75
100
125
T
A
-Ambient temperature(°C)
150
175
Figure 3 - Pulse Waveform
150
Figure 4 - Typical Junction Capacitance
100000
C
J
–
Junction Capacitance (pF)
I
PPM
- Peak Pulse Current, % I
RSM
t
r
=10µsec
Peak Value
IPPM
100
T
J
=25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of I
PPM
Bi-directional
@zero bins
10000
1000
Uni-directional @V
RWM
Uni-directional
@zero bins
Half Value
I
PPM
(I
PPM
/2)
50
10/1000µsec. Waveform
as defined by R.E.A
100
10
1
0
0
t
c
1.0
2.0
t - Time (ms)
3.0
4.0
Tj=25°C
f=1.0MHz
Vsig=50mVp-p
Bi-directional @V
RWM
1.0
10.0
100.0
V
BR
-Reverse Breakdown Voltage (V)
1000.0
Figure 5 - Steady State Power Derating Curve
P
M(AV)
, Steady State Power Dissipation (W)
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
25
50
75
100
125
150
T
L
- Lead Temperature(°C)
175
200
Figure 6 - Maximum Non-Repetitive Surge Current
30
I
FSM
-Peak Forward Surge Current
(A)
T
J
=T
J
max.
8.3 ms Single Half Sine-Wave
20
10
0
1
10
Number of Cycles at 60Hz
100
UN Semiconductor Co., Ltd.
Revision
October 18, 2013
www.unsemi.com.tw
3/6
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
Surface Mount Transient Voltage Suppressors (TVS)
SMF Series
5.0 To 190 V
200W
I-V Curve Characteristics
Physical Specifications
Case
Polarity
Terminal
SOD-123 Molded Plastic over glass
passivated junction
Color band denotes cathode except
Bipolar
Matte Tin-plated leads, Solderable per
JESD22-B102D
Environmental Specifications
Temperature Cycle
Pressure Cooker
High Temp. Storage
HTRB
Thermal Shock
JESD22-A104
JESD22-A102
JESD22-A103
JESD22-A108
JESD22-A106
Soldering Parameters
Reflow Condition
T
P
Ramp-up
Critical Zone
T
L
to T
P
Lead–free assembly
150°C
200°C
60 -180 Seconds
3°C/second max
3°C/second max
217°C
60 -150 Seconds
260 +0/-5°C
of
actual
peak
20 -40 Seconds
6°C/second max
8 minutes Max
280°C
-Temperature Min (T
s(min)
)
Pre Heat
-Temperature Max (T
s(max)
)
- Time (min to max) (t
s
)
T
L
T
S(max)
Temperature
Ramp-down
T
S(min)
Preheat
Average ramp up rate ( Liquidus Temp T
L
)
to peak
T
S(max)
to TL - Ramp-up Rate
- Temperature (T
L
) (Liquidus)
Time to peak temperature
(t 25℃ to peak)
25
Time
Reflow
- Time (min to max) (t
s
)
Peak Temperature (T
P
)
Time within 5°C
Temperature (t
p
)
Ramp-down Rate
Time 25°C to peak Temperature (T
P
)
Do not exceed
UN Semiconductor Co., Ltd.
Revision
October 18, 2013
www.unsemi.com.tw
4/6
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
Surface Mount Transient Voltage Suppressors (TVS)
SMF Series
Dimensions
SOD-123
Cathode Band
5.0 To 190 V
200W
Inches
Dimensions
Min
A
B
C
D
E
F
G
0.031
0.1
0.055
0.140
0.037
0.01
-
Max
0.044
0.112
0.071
0.152
0.053
-
0.008
Millimeters
Min
0.77
2.51
1.38
3.51
0.93
0.25
-
Max
1.09
2.81
1.78
3.82
1.33
-
0.20
Part Numbering
SMF
×××
CA
5% V
BR
VOLTAGE TOLERANCE
BI-DIRECTIONAL
V
R
VOLTAGE
SERIES
Packaging
Part Number
SMFXXXXX
Component
Package
SOD-123
Quantity
3000
Packaging Option
Tape & Reel -12mm/7″tape
Packaging
Specification
EIA STD RS-481
UN Semiconductor Co., Ltd.
Revision
October 18, 2013
www.unsemi.com.tw
5/6
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
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