Data Sheet - Littelfuse

TVS Diodes
Surface Mount – 200W > SMF Series
RoHS
Pb e3
Description
Uni-directional
The SMF series is designed specifically to protect sensitive
electronic equipment from voltage transients induced by
lightning and other transient voltage events.
SMF package is 50% smaller in footprint when compare
to SMA package and deliverying one of the low height
profiles (1.1mm) in the industry.
Agency Approvals
AGENCY
Features
•Compatible with industrial standard
package SOD-123F
• For surface mounted
applications to optimize
board space
• Low profile: maximum
height of 1.1mm.
• 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
30kV(Air), 30kV (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)
• Low inductance, excellent
clamping capability
AGENCY FILE NUMBER
E230531
Maximum Ratings and Thermal Characteristics
(TA=25OC unless otherwise noted)
Parameter
Symbol
Value
Unit
Peak Pulse Power Dissipation at
TA=25ºC by 10/1000µs (Note 1)
PPPM
200
W
Thermal Resistance Junction- toAmbient
RTHJ-A
220
°C/W
Thermal Resistance Junction- toLead
RTHJ-L
100
°C/W
Operating and Storage Temperature
Range
TJ,TSTG
-55 to 150
°C
Notes:
1. Non-repetitive current pulse, per Fig. 4 and derated above TA=25ºC per Fig. 3.
Functional Diagram
Bi-directional
Cathode
Anode
Applications
Uni-directional
SMF Series
• 200W peak pulsepower
capability at 10/1000µs
waveform, repetition rate
(duty cycle): 0.01%
• Fast response time:
typically less than 1.0ns
from 0 Volts to VBR min
• High temperature
soldering: 260°C/40
seconds at terminals
• Glass passivated junction
• Built-in strain relief
• Plastic package has
underwriters laboratory
flammability 94V-O
• Meet MSL level1, per
J-STD-020, LF maximun
peak of 260°C
• Matte tin lead–free plated
• Halogen-free and RoHS
compliant
• 2nd level interconnect is
Pb-free per IPC/JEDEC
J-STD-609A.01
SMF devices are ideal for the protection of I/O interfaces,
VCC bus and other vulnerable circuit used in cellular phones,
portable devices, business machines, power supplies and
other consumer applications.
14
©2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 10/09/14
HF RoHS SMF Series
SMF Series
TVS Diodes
Surface Mount – 200W > SMF Series
Electrical Characteristics (T =25°C unless otherwise noted)
A
Part
Number
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
SMF20A
SMF22A
SMF24A
SMF26A
SMF28A
SMF30A
SMF33A
SMF36A
SMF40A
SMF43A
SMF45A
SMF48A
SMF51A
SMF54A
SMF58A
SMF60A
SMF64A
SMF70A
SMF75A
SMF78A
SMF85A
Marking
Code
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
RG
RK
RM
RP
RR
RT
RV
Breakdown
Voltage VBR
(Volts) @ IT
MIN
MAX
Test
Current
IT
(mA)
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
20.0 0
22.20
24.40
26.70
28.90
31.10
33.30
36.70
40.0 0
44.40
47.80
50.00
53.30
56.70
60.00
64.40
66.70
71.10
77.80
83.30
86.70
94.40
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
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
104.00
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
Maximum
Reverse Stand
Reverse
off Voltage
Leakage @ VR
VR (V)
IR (µA)
5.0
6.0
6.5
7.0
7.5
8.0
8.5
9.0
10
11
12
13
14
15
16
17
18
20
22
24
26
28
30
33
36
40
43
45
48
51
54
58
60
64
70
75
78
85
400
400
250
100
50
25
10
5
2.5
2.5
2.5
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
Maximum
Peak Pulse
Current Ipp
(A)
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
1.8
1.7
1.5
1.4
1.4
1.3
Maximum
Clamping
Voltage @Ipp
VC (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
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
Agency
Approval
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Notes:
1. VBR measured after IT applied for 300µs, IT = sequare wave pulse or equivalent.
2. Surge current waveform per 10/1000µs exponential wave and derated per Fig.2.
3. All terms and symbols are consistent with ANSI/IEEE C62.35.
SMF Series
15
©2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 10/09/14
TVS Diodes
Surface Mount – 200W > SMF Series
I-V Curve Characteristics
Uni-directional
Vc VBR VR
V
IR VF
IT
Ipp
PPPM
VR
VBR
VC
IR
VF
Peak Pulse Power Dissipation -- Max power dissipation
Stand-off Voltage -- Maximum voltage that can be applied to the TVS without operation
Breakdown Voltage -- Maximum voltage that flows though the TVS at a specified test current (IT)
Clamping Voltage -- Peak voltage measured across the suppressor at a specified Ippm (peak impulse current)
Reverse Leakage Current -- Current measured at VR
Forward Voltage Drop for Uni-directional
Ratings and Characteristic Curves (T =25°C unless otherwise noted)
A
Figure 1 - TVS Transients Clamping Waveform
Figure 2 - Peak Pulse Power Rating Curve
Voltage Transients
PPPM-Peak Pulse Power (kW)
10
Voltage or Current
Voltage Across TVS
Current Through TVS
1
0.1
0.000001
0.00001
0.0001
0.001
td-Pulse Width (sec.)
Time
continues on next page.
SMF Series
16
©2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 10/09/14
TVS Diodes
Surface Mount – 200W > SMF Series
Ratings and Characteristic Curves (T =25°C unless otherwise noted) (Continued)
A
Figure 3 - Pulse Derating Curve
Figure 4 - Pulse Waveform - 10/1000µS
150
IPPM- Peak Pulse Current, % IRSM
Peak Pulse Power (PPP) or Current (IPP)
Derating in Percentage %
100
80
60
40
20
0
0
25
50
75
100
125
150
tr=10µsec
Half Value
IPPM IPPM
( )
2
50
TA-Ambient temperature (ºC)
10/1000µsec. Waveform
as defined by R.E.A
td
0
1.0
2.0
3.0
4.0
t-Time (ms)
Figure 5 - Steady State Power Dissipation
Derating Curve
Figure 6 - Forward Voltage
0.9
Vf - Typical forward dropped voltage
1.50
PM(AV), Steady State Power Dissipation (W)
Peak Value
IPPM
100
0
175
TJ=25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of IPPM
1.25
1.00
0.75
0.50
0.25
25
50
75
100 125
TL - Tab temperature (ºC)
150
0.7
0.6
0.5
0.4
0
-55
0
0
0.8
175
10
75
140
Temperature (ºC)
Figure 7 - Cj vs. Working Peak Reverse Voltage
10000
1000
Cj (pf)
[email protected]=0v
100
10
1
[email protected]%Vr
10
100
Vbr - Reverse breakdown voltage
SMF Series
17
©2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 10/09/14
TVS Diodes
Surface Mount – 200W > SMF Series
Soldering Parameters
Pre Heat
Lead–free assembly
- Temperature Min (Ts(min))
150°C
- Temperature Max (Ts(max))
200°C
- Time (min to max) (ts)
60 – 180 secs
Average ramp up rate (Liquidus Temp (TL)
to peak
3°C/second max
TS(max) to TL - Ramp-up Rate
3°C/second max
Reflow
- Temperature (TL) (Liquidus)
217°C
- Time (min to max) (ts)
60 – 150 seconds
Peak Temperature (TP)
260+0/-5 °C
Time within 5°C of actual peak
Temperature (tp)
20 – 40 seconds
Ramp-down Rate
6°C/second max
Time 25°C to peak Temperature (TP)
8 minutes Max.
Do not exceed
260°C
Ramp-up
TL
SOD-123F plastic over glass passivated
junction
Polarity
Color band denotes cathode except bipolar
Terminal
Matte tin-plated leads, solderable per
JESD22-B102
Critical Zone
TL to TP
tL
Ts(max)
Ramp-down
Ts(min)
ts
Preheat
25˚C
t 25˚C to Peak
Time (t)
Environmental Specifications
Physical Specifications
Case
tp
TP
Temperature (T)
Reflow Condition
High Temp. Storage
JESD22-A103
HTRB
JESD22-A108
Temperature Cycling
JESD22-A104
MSL
JEDEC-J-STD-020, Level 1
H3TRB
JESD22-A101
RSH
JESD22-B106
Dimensions - SOD-123F Package
C
Millimeters
Inches
Min
Max
Min
Max
A
2.50
2.90
0.0984
0.1142
B
3.40
3.90
0.1339
0.1535
C
0.70
1.20
0.0275
0.0472
E
B
A
E
Dimensions
D
1.50
2.00
0.0591
0.0787
F
E
0.35
0.90
0.0138
0.0354
F
0.05
0.26
0.0020
0.0102
G
0.00
0.10
0.0000
0.0039
H
0.95
1.10
0.0374
0.0433
G
H
D
Mounting Pad Layout
1.6 (0.062)
1.3 (0.051)
1.4 (0.055)
SMF Series
18
©2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 10/09/14
TVS Diodes
Surface Mount – 200W > SMF Series
Part Numbering System
Part Marking System
SMF xx A
LF
5% VBR VOLTAGE TOLERANCE
Cathode Band
XX
YM
VR VOLTAGE
SERIES
Marking Code
Trace Code Marking
Y:Year Code
M: Month Code
Packaging Options
Part number
Component
Package
Quantity
Packaging Option
Packaging
Specification
SMFXXX
SOD-123F
3000
Tape & Reel – 8mm tape/7” reel
EIA RS-481
SMFXXX-T13
SOD-123F
10000
Tape & Reel – 8mm tape/13” reel
EIA RS-481
Tape and Reel Specification
0.157
(4.0)
Cathode
0.31
(8.0)
0.157
(4.0)
Optional
7” 7.0 (178)
13” 13.0 (330)
0.80 (20.2)
Arbor Hole Dia.
0.33
(8.5)
SMF Series
0.059 DIA
(1.5)
Cover tape
Dimensions are in inches
(and millimeters).
Direction of Feed
19
©2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 10/09/14