TVS Diode Arrays
(SPA
®
Diodes)
General Purpose ESD Protection - SM05 through SM36
SM Series 400W TVS Diode Array
Description
RoHS
Pb
GREEN
The SM series TVS Diode Array is designed to protect
sensitive equipment from damage due to electrostatic
discharge (ESD), electrical fast transients (EFT), and
lightning induced surges.
Pinout and Functional Block Diagram
Features
• RoHS compliant and
lead-free
• ESD, IEC 61000-4-2,
±30kV contact, ±30kV air
• EFT, IEC 61000-4-4, 50A
(5/50ns)
• Working voltages: 5V,
12V, 15V, 24V and 36V
• Low clamping voltage
• Low leakage current
• AEC-Q101 qualified
(SOT23-3 package)
• Moisture Sensitivity Level
(MSL
-1)
(AEC-Q101 qualified)
1
3
2
• Lightning, IEC 61000-
4-5, 2nd Edition, 24A
(t
P
=8/20μs, SM05)
Applications
• Industrial Equipment
• Test and Medical
Equipment
• Legacy Ports
(RS-232, RS-485)
• Security and Alarm
System
• Automotive Electronics
Life Support Note:
Not Intended for Use in Life Support or Life Saving Applications
The products shown herein are not designed for use in life sustaining or life saving
applications unless otherwise expressly indicated.
• Point-of-Sale Terminals
• Motor Controls
Additional Information
RS-232 Application Example
RS-232 Port
Transceiver
Datasheet
Resources
Samples
RD
TD
RTS
CTS
DSR
DTR
IC
Case GND
(bidirec onal implementa on)
SM15 (x6)
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/23/18
5
SM Series
The SM series can absorb repetitive ESD strikes above the
maximum level specified in the IEC 61000-4-2 international
standard without performance degradation and safely
dissipate up to 24A of 8/20µs induced surge current (IEC-
61000-4-5, 2nd Edition) with very low clamping voltages.
TVS Diode Arrays
(SPA
®
Diodes)
General Purpose ESD Protection - SM05 through SM36
Absolute Maximum Ratings
Symbol
P
Pk
T
OP
T
STOR
Notes:
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the component. This is a stress only rating and
operation of the component at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Parameter
Peak Pulse Power (t
p
=8/20μs)
Operating Temperature
Storage Temperature
Value
400
-40 to 125
-55 to 150
Units
W
°C
°C
SM05 Electrical Characteristics
(T
OP
=25ºC)
Parameter
Reverse Standoff Voltage
Reverse Voltage Drop
Leakage Current
Clamp Voltage
1
Dynamic Resistance
2
Peak Pulse Current
(8/20µs)
1
ESD Withstand Voltage
1
Symbol
V
RWM
V
R
I
LEAK
V
C
R
DYN
Ipp
V
ESD
C
I/O-GND
C
I/O-I/O
Test Conditions
I
R
≤1μA
I
R
=1mA
V
R
=5V
I
PP
=1A, t
p
=8/20µs, Pin 1 or Pin 2 to Pin 3
I
PP
=10A, t
p
=8/20µs, Pin 1 or Pin 2 to Pin 3
TLP t
p
=100ns, I/O to GND
,
t
p
=8/20µs
IEC 61000-4-2 (Contact Discharge)
IEC 61000-4-2 (Air Discharge)
Reverse Bias=0V, f=1MHz
Reverse Bias=0V, f=1MHz
±30
±30
400
350
0.19
24.0
6.0
1.0
9.8
13.0
Min
Typ
Max
5.0
Units
V
V
μA
V
V
Ω
A
kV
kV
pF
pF
Diode Capacitance
1
SM12 Electrical Characteristics
(T
OP
=25ºC)
Parameter
Reverse Standoff Voltage
Reverse Voltage Drop
Leakage Current
Clamp Voltage
1
Dynamic Resistance
2
Peak Pulse Current
(8/20µs)
1
ESD Withstand Voltage
1
Symbol
V
RWM
V
R
I
LEAK
V
C
R
DYN
Ipp
V
ESD
C
I/O-GND
C
I/O-I/O
Test Conditions
I
R
≤1μA
I
R
=1mA
V
R
=12V
I
PP
=1A, t
p
=8/20µs, Pin 1 or Pin 2 to Pin 3
I
PP
=10A, t
p
=8/20µs, Pin 1 or Pin 2 to Pin 3
TLP t
p
=100ns, I/O to GND
,
t
p
=8/20µs
IEC 61000-4-2 (Contact Discharge)
IEC 61000-4-2 (Air Discharge)
Reverse Bias=0V, f=1MHz
Reverse Bias=0V, f=1MHz
±30
±30
150
120
0.25
17
.0
13.3
1.0
18.5
22.5
Min
Typ
Max
12.0
Units
V
V
μA
V
V
Ω
A
kV
kV
pF
pF
Diode Capacitance
1
6
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/23/18
TVS Diode Arrays
(SPA
®
Diodes)
General Purpose ESD Protection - SM05 through SM36
SM15 Electrical Characteristics
(T
OP
=25ºC)
Parameter
Reverse Standoff Voltage
Reverse Voltage Drop
Leakage Current
Clamp Voltage
1
Dynamic Resistance
2
Peak Pulse Current
(8/20µs)
1
ESD Withstand Voltage
1
Symbol
V
RWM
V
R
I
LEAK
V
C
R
DYN
Ipp
V
ESD
C
I/O-GND
C
I/O-I/O
Test Conditions
I
R
≤1μA
I
R
=1mA
V
R
=15V
I
PP
=1A, t
p
=8/20µs, Pin 1 or Pin 2 to Pin 3
I
PP
=10A, t
p
=8/20µs, Pin 1 or Pin 2 to Pin 3
TLP t
p
=100ns, I/O to GND
,
t
p
=8/20µs
IEC 61000-4-2 (Contact Discharge)
IEC 61000-4-2 (Air Discharge)
Reverse Bias=0V, f=1MHz
Reverse Bias=0V, f=1MHz
±30
±30
100
75
0.30
12.0
16.7
1.0
24.0
30.0
Min
Typ
Max
15.0
Units
V
V
μA
V
Ω
A
kV
kV
pF
pF
Diode Capacitance
1
SM24 Electrical Characteristics
(T
OP
=25ºC)
Parameter
Reverse Standoff Voltage
Reverse Voltage Drop
Leakage Current
Clamp Voltage
1
Dynamic Resistance
2
Peak Pulse Current
(8/20µs)
1
ESD Withstand Voltage
1
Symbol
V
RWM
V
R
I
LEAK
V
C
R
DYN
Ipp
V
ESD
C
I/O-GND
C
I/O-I/O
Test Conditions
I
R
≤1μA
I
R
=1mA
V
R
=24V
I
PP
=1A, t
p
=8/20µs, Pin 1 or Pin 2 to Pin 3
I
PP
=5A, t
p
=8/20µs, Pin 1 or Pin 2 to Pin 3
TLP t
p
=100ns, I/O to GND
,
t
p
=8/20µs
IEC 61000-4-2 (Contact Discharge)
IEC 61000-4-2 (Air Discharge)
Reverse Bias=0V, f=1MHz
Reverse Bias=0V, f=1MHz
±30
±30
65
50
0.50
7
.0
26.7
1.0
36.0
42.0
Min
Typ
Max
24.0
Units
V
V
μA
V
V
Ω
A
kV
kV
pF
pF
Diode Capacitance
1
SM36 Electrical Characteristics
(T
OP
=25ºC)
Parameter
Reverse Standoff Voltage
Reverse Voltage Drop
Leakage Current
Clamp Voltage
1
Dynamic Resistance
2
Peak Pulse Current
(8/20µs)
1
ESD Withstand Voltage
1
Symbol
V
RWM
V
R
I
LEAK
V
C
R
DYN
Ipp
V
ESD
C
I/O-GND
C
I/O-I/O
Test Conditions
I
R
≤1μA
I
R
=1mA
V
R
=36V
I
PP
=1A, t
p
=8/20µs, Pin 1 or Pin 2 to Pin 3
I
PP
=4A, t
p
=8/20µs, Pin 1 or Pin 2 to Pin 3
TLP t
p
=100ns, I/O to GND
,
t
p
=8/20µs
IEC 61000-4-2 (Contact Discharge)
IEC 61000-4-2 (Air Discharge)
Reverse Bias=0V, f=1MHz
Reverse Bias=0V, f=1MHz
±30
±30
50
40
0.65
5.0
40.0
1.0
52.0
62.0
Min
Typ
Max
36.0
Units
V
V
μA
V
V
Ω
A
kV
kV
pF
pF
Diode Capacitance
1
Note:
1
2
Parameter is guaranteed by design and/or component characterization.
Transmission Line Pulse (TLP) with 100ns width and 200ps rise time.
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/23/18
7
SM Series
V
TVS Diode Arrays
(SPA
®
Diodes)
General Purpose ESD Protection - SM05 through SM36
Non-Repetitive Peak Pulse Power vs. Pulse Time
10
pk (kW)
Power Derating Curve
110
100
90
% of Rated Power I
PP
80
70
60
50
40
30
20
10
0
Peak Pulse Power - P
1
0.1
0.01
0.1
1
Pulse Duration - t p (µs)
10
100
1000
0
25
50
75
100
125
150
Ambient Temperature - T
A
(
o
C)
Pulse Waveform
110%
100%
90%
80%
SM05 Transmission Line Pulsing(TLP) Plot
SM05
20
18
16
14
Percent of I
PP
TLP Current (A)
0.0
5.0
10.0
15.0
20.0
25.0
30.0
70%
60%
50%
40%
30%
20%
10%
0%
12
10
8
6
4
2
0
0
2
4
6
8
10
12
Time ( s)
TLP Voltage (V)
SM12 Transmission Line Pulsing(TLP) Plot
20
18
16
14
SM15 Transmission Line Pulsing(TLP) Plot
20
18
16
14
SM12
SM15
TLP Current (A)
12
10
8
6
4
2
0
0
5
10
15
20
25
TLP Current (A)
12
10
8
6
4
2
0
0
5
10
15
20
25
30
TLP Voltage (V)
TLP Voltage (V)
8
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/23/18
TVS Diode Arrays
(SPA
®
Diodes)
General Purpose ESD Protection - SM05 through SM36
SM24 Transmission Line Pulsing(TLP) Plot
20
18
16
14
SM36 Transmission Line Pulsing(TLP) Plot
20
18
16
14
SM24
SM36
TLP Current (A)
TLP Current (A)
12
10
8
6
4
2
0
0
5
10
15
20
25
30
35
40
12
10
8
6
4
2
0
0
5
10
15
20
25
30
35
40
45
50
55
TLP Voltage (V)
TLP Voltage (V)
Soldering Parameters
Reflow Condition
- Temperature Min (T
s(min)
)
Pre Heat
- Temperature Max (T
s(max)
)
- Time (min to max) (t
s
)
Average ramp up rate (Liquidus) Temp
(T
L
) to peak
T
S(max)
to T
L
- Ramp-up Rate
Reflow
- Temperature (T
L
) (Liquidus)
- Temperature (t
L
)
Pb – Free assembly
Temperature
T
P
T
L
T
S(max)
Preheat
Ramp-up
t
P
Critical Zone
T
L
to T
P
150°C
200°C
60 – 180 secs
3°C/second max
3°C/second max
217°C
60 – 150 seconds
260
+0/-5
°C
20 – 40 seconds
6°C/second max
8 minutes Max.
260°C
t
L
Ramp-do
Ramp-down
T
S(min)
t
S
time to peak temperature
25
Time
Peak Temperature (T
P
)
Time within 5°C of actual peak
Temperature (t
p
)
Ramp-down Rate
Time 25°C to peak Temperature (T
P
)
Do not exceed
Ordering Information
Part Number
SM05-02HTG
SM12-02HTG
SM15-02HTG
SM24-02HTG
SM36-02HTG
Package
SOT23-3
SOT23-3
SOT23-3
SOT23-3
SOT23-3
Marking
M05
M12
M15
M24
M36
Min. Order Qty.
3000
3000
3000
3000
3000
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/23/18
9
SM Series
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