SMF5.0AT1 Series,
SZSMF5.0AT1 Series
200 W Transient
Voltage Suppressor
SOD-123 Flat Lead Package
The SMF5.0A Series is designed to protect voltage sensitive
components from high voltage, high energy transients. Excellent
clamping capability, high surge capability, low zener impedance and
fast response time. Because of its small size, it is ideal for use in
cellular phones, portable devices, business machines, power supplies
and many other industrial/consumer applications.
Features
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PLASTIC SURFACE MOUNT
ZENER OVERVOLTAGE
TRANSIENT SUPPRESSOR
5
−
58 VOLTS
200 WATT PEAK POWER
Stand−off Voltage: 5
−
58 Volts
Peak Power
−
200 Watts @ 1 ms (SMF5.0A
−
SMF58A)
Low Leakage
Response Time is Typically < 1 ns
ESD Rating of Class 3 (> 16 kV) per Human Body Model
ESD Rating of Level 4 (8 kV Contact Discharge) per IEC61000−4−2
EFT (Electrical Fast Transients) Rating of 40 A per IEC61000−4−4
Low Profile
−
Maximum Height of 1.0 mm
Small Footprint
−
Footprint Area of 8.45 mm
2
Supplied in 8 mm Tape and Reel
−
3,000 Units per Reel
Cathode Indicated by Polarity Band
Lead Orientation in Tape: Cathode Lead to Sprocket Holes
AEC−Q101 Qualified and PPAP Capable
SZ Prefix for Automotive and Other Applications Requiring Unique
Site and Control Change Requirements
Pb−Free Packages are Available*
Mechanical Characteristics:
CASE:
Void-free, transfer-molded, thermosetting plastic
SOD−123FL
CASE 498
PLASTIC
1
1: CATHODE
2: ANODE
2
MARKING DIAGRAM
xx M
G
G
1
CATHODE
xx
M
G
2
ANODE
= Device Code (Refer to page 3)
= Date Code
= Pb−Free Package
Epoxy Meets UL 94 V−0
LEAD FINISH:
100% Matte Sn (Tin)
MOUNTING POSITION:
Any
QUALIFIED MAX REFLOW TEMPERATURE:
260C
(Note: Microdot may be in either location)
ORDERING INFORMATION
Device
SMFxxxAT1G
SZSMFxxxAT3G
Package
SOD−123FL
(Pb−Free)
SOD−123FL
(Pb−Free)
Shipping
†
3,000 /
Tape & Reel
3,000 /
Tape & Reel
Device Meets MSL 1 Requirements
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
DEVICE MARKING INFORMATION
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
Semiconductor Components Industries, LLC, 2012
See specific marking information in the device marking
column of the Electrical Characteristics table on page 3 of
this data sheet.
January, 2012
−
Rev. 4
1
Publication Order Number:
SMF5.0AT1/D
SMF5.0AT1 Series, SZSMF5.0AT1 Series
MAXIMUM RATINGS
Rating
Maximum P
pk
Dissipation (PW−10/1000
ms)
(Note 1) SMF5.0A
−
SMF58A
Maximum P
pk
Dissipation @ T
A
= 25C, (PW−8/20
ms)
(Note 2)
DC Power Dissipation
@ T
A
= 25C (Note 3)
Derate above 25C
Thermal Resistance, Junction−to−Ambient (Note 3)
Thermal Resistance, Junction−to−Lead (Note 3)
Operating and Storage Temperature Range
Symbol
P
pk
P
pk
P
D
R
qJA
R
qJcathode
T
J
, T
stg
Value
200
1000
385
4.0
325
26
−55
to +150
Unit
W
W
mW
mW/C
C/W
C/W
C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. Non−repetitive current pulse at T
A
= 25C, per waveform of Figure 2.
2. Non−repetitive current pulse at T
A
= 25C, per waveform of Figure 3.
3. Mounted with recommended minimum pad size, DC board FR−4.
ELECTRICAL CHARACTERISTICS
(T
A
= 25C unless
otherwise noted, V
F
= 3.5 V Max. @ I
F
(Note 4) = 12 A)
Symbol
I
PP
V
C
V
RWM
I
R
V
BR
I
T
I
F
V
F
Parameter
Maximum Reverse Peak Pulse Current
Clamping Voltage @ I
PP
Working Peak Reverse Voltage
Maximum Reverse Leakage Current @ V
RWM
Breakdown Voltage @ I
T
Test Current
Forward Current
Forward Voltage @ I
F
V
C
V
BR
V
RWM
I
F
I
I
R
V
F
I
T
V
I
PP
4. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms,
duty cycle = 4 pulses per minute maximum.
Uni−Directional TVS
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2
SMF5.0AT1 Series, SZSMF5.0AT1 Series
ELECTRICAL CHARACTERISTICS
(T
L
= 30C unless otherwise noted, V
F
= 1.25 Volts @ 200 mA)
V
RWM
(V)
Device*
SMF5.0A, G
SMF6.0A, G
SMF6.5A, G
SMF7.0A, G
SMF7.5A, G
SMF8.0A, G
SMF8.5A, G
SMF9.0A, G
SMF10A, G
SMF11A, G
SMF12A, G
SMF13A, G
SZ/SMF14A, G
SMF15A, G
SMF16A, G
SMF17A, G
SMF18A, G
SZ/SMF20A, G
SMF22A, G
SMF24A, G
SMF26A, G
SMF28A, G
SMF30A, G
SZ/SMF33A, G
SMF36A, G
SMF40A, G
SMF43A, G
SMF45A, G
SMF48A, G
SMF51A, G
SMF54A, G
SMF58A, G
Marking
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
(Note 5)
5
6
6.5
7
7.5
8
8.5
9
10
11
12
13
14
15
16
17
18
20
22
24
26
28
30
33
36
40
43
45
48
51
54
58
V
BR
@ I
T
(V)
(Note 6)
Min
6.4
6.67
7.22
7.78
8.33
8.89
9.44
10
11.1
12.2
13.3
14.4
15.6
16.7
17.8
18.9
20
22.2
24.4
26.7
28.9
31.1
33.3
36.7
40
44.4
47.8
50
53.3
56.7
60
64.4
Nom
6.7
7.02
7.6
8.2
8.77
9.36
9.92
10.55
11.7
12.85
14
15.15
16.4
17.6
18.75
19.9
21
23.35
25.6
28.1
30.4
32.8
35.1
38.7
42.1
46.8
50.3
52.65
56.1
59.7
63.15
67.8
Max
7
7.37
7.98
8.6
9.21
9.83
10.4
11.1
12.3
13.5
14.7
15.9
17.2
18.5
19.7
20.9
22.1
24.5
26.9
29.5
31.9
34.4
36.8
40.6
44.2
49.1
52.8
55.3
58.9
62.7
66.3
71.2
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
I
R
@ V
RWM
(mA)
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
V
C(Max)
(V)
9.2
10.3
11.2
12
12.9
13.6
14.4
15.4
17
18.2
19.9
21.5
23.2
24.4
26
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
I
PP(Max)
(A)
(Note 7)
21.7
19.4
17.9
16.7
15.5
14.7
13.9
13.0
11.8
11.0
10.1
9.3
8.6
8.2
7.7
7.2
6.8
6.2
5.6
5.1
4.8
4.4
4.1
3.8
3.4
3.1
2.9
2.8
2.6
2.4
2.3
2.1
5. A transient suppressor is normally selected according to the Working Peak Reverse Voltage (V
RWM
) which should be equal to or greater
than the DC or continuous peak operating voltage level.
6. V
BR
measured at pulse test current I
T
at ambient temperature of 25C.
7. Surge current waveform per Figure 2 and derate per Figure 3.
*The “G’’ suffix indicates Pb−Free package available.
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3
SMF5.0AT1 Series, SZSMF5.0AT1 Series
TYPICAL PROTECTION CIRCUIT
Z
in
V
in
LOAD
V
L
10,000
P
P
, PEAK POWER (WATTS)
VALUE (%)
1000
100
PULSE WIDTH (t
P
) IS DEFINED
AS THAT POINT WHERE THE PEAK
t
r
CURRENT DECAYS TO 50%
OF I
RSM
.
t
r
10
ms
PEAK VALUE
−
I
RSM
100
50
t
P
I
HALF VALUE
−
RSM
2
10
1.0
10
100
t
P
, PULSE WIDTH (ms)
1000
10,000
0
0
1
2
3
4
t, TIME (ms)
Figure 1. Pulse Rating Curve
Figure 2. 10 X 1000
ms
Pulse Waveform
100
% OF PEAK PULSE CURRENT
90
80
70
60
50
40
30
20
10
0
0
t
r
PEAK VALUE I
RSM
@ 8
ms
PULSE WIDTH (t
P
) IS DEFINED
AS THAT POINT WHERE THE
PEAK CURRENT DECAY = 8
ms
HALF VALUE I
RSM
/2 @ 20
ms
PEAK PULSE DERATING IN % OF
PEAK POWER OR CURRENT @ T
A
= 25C
160
140
120
100
80
60
40
20
0
0
25
50
75
100
125
150
t
P
20
40
t, TIME (ms)
60
80
T
A
, AMBIENT TEMPERATURE (C)
Figure 3. 8 X 20
ms
Pulse Waveform
Figure 4. Pulse Derating Curve
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4
SMF5.0AT1 Series, SZSMF5.0AT1 Series
P D , MAXIMUM POWER DISSIPATION (mW
1
0.7
0.5
DERATING FACTOR
0.3
0.2
0.1
0.07
0.05
0.03
0.02
0.01
10
ms
0.1 0.2
0.5
1
2
5
10
20
50 100
PULSE WIDTH
10 ms
400
350
300
250
200
150
100
50
0
0
25
50
75
100
125
150
175
T, TEMPERATURE (C)
1 ms
100
ms
D, DUTY CYCLE (%)
Figure 5. Typical Derating Factor for Duty Cycle
Figure 6. Steady State Power Derating
V F, TYPICAL FORWARD VOLTAGE (VOLTS)
1.2
1.0
0.8
0.6
0.4
0.2
0
1000
C, CAPACITANCE (pF)
MEASURED @ ZERO BIAS
100
MEASURED @ 50% V
RWM
10
−55
25
85
150
1
1
10
100
1000
T, TEMPERATURE (C)
WORKING PEAK REVERSE VOLTAGE (VOLTS)
Figure 7. Forward Voltage
Figure 8. Capacitance versus Working Peak
Reverse Voltage
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5
Microcontroller MCU
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