®
TVS Diode Arrays
(SPA
®
Diodes)
General Purpose ESD Protection - AQxx Series
SD Series
AQxx Series 450W Discrete Unidirectional TVS Diode
Description
RoHS
Pb
GREEN
The unidirectional AQxx series is designed to replace
multilayer varistors (MLVs) in electronic equipment for low
speed and DC applications. It will protect any sensitive
equipment from damage due to electrostatic discharge
(ESD) and other transient events.
The AQxx series can safely absorb repetitive ESD strikes
at ±30kV (contact discharge, IEC 61000-4-2) without
performance degradation and safely dissipate 30A (AQ05)
of 8/20μs induced surge current (IEC 61000-4-5) with very
low clamping voltages.
Pinout and Functional Block Diagram
Features
• ESD, IEC 61000-4-2,
±30kV contact, ±30kV air
• Low leakage current
• Small SOD323 package
fits 0805 footprints
• AEC-Q101 qualified
• Moisture Sensitivity
Level(MSL -1)
• Halogen free, lead free
and RoHS compliant
1
• EFT, IEC 61000-4-4, 40A
(5/50ns)
• Lightning, IEC 61000-
4-5 2nd edition, 30A
(t
P
=8/20μs, AQ05)
• Low clamping voltage
2
Applications
• Switches / Buttons
• Test Equipment /
Instrumentation
• Point-of-Sale Terminals
• Medical Equipment
• Notebooks / Desktops /
Servers
• Computer Peripherals
• CAN Bus protection
• Automotive applications
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.
©2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revision: 09/21/17
®
TVS Diode Arrays
(SPA
®
Diodes)
General Purpose ESD Protection - AQxx Series
SD Series
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
450
-40 to 150
-55 to 150
Units
W
°C
°C
AQ05 Electrical Characteristics
(T
OP
=25ºC)
Parameter
Reverse Standoff Voltage
Reverse Voltage Drop
Leakage Current
Clamp Voltage
1
Dynamic Resistance
2
Peak Pulse Current
ESD Withstand Voltage
1
Diode Capacitance
1
Symbol
V
RWM
V
R
I
LEAK
V
C
R
DYN
I
pp
V
ESD
C
D
Test Conditions
I
R
≤1μA
I
R
=1mA
V
R
=5V
I
PP
=1A, t
p
=8/20µs, Fwd
I
PP
=10A, t
P
=8/20μs, Fwd
TLP tp=100ns, I/O to Ground
,
t
p
=8/20µs
IEC 61000-4-2 (Contact Discharge)
IEC 61000-4-2 (Air Discharge)
Reverse Bias=0V, f=1MHz
±30
±30
350
0.22
30.0
6.0
1.0
9.8
13.0
Min
Typ
Max
5.0
Units
V
V
μA
V
V
Ω
A
kV
kV
pF
AQ12 Electrical Characteristics
(T
OP
=25ºC)
Parameter
Reverse Standoff Voltage
Reverse Voltage Drop
Leakage Current
Clamp Voltage
1
Dynamic Resistance
2
Peak Pulse Current
ESD Withstand Voltage
1
Diode Capacitance
1
Symbol
V
RWM
V
R
I
LEAK
V
C
R
DYN
I
pp
V
ESD
C
D-GND
Test Conditions
I
R
≤1μA
I
R
=1mA
V
R
=12V
I
PP
=1A, t
p
=8/20µs, Fwd
I
PP
=10A, t
P
=8/20μs, Fwd
TLP tp=100ns, I/O to Ground
,
t
p
=8/20µs
IEC 61000-4-2 (Contact Discharge)
IEC 61000-4-2 (Air Discharge)
Reverse Bias=0V, f=1MHz
±30
±30
150
0.29
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
©2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revision: 09/21/17
®
TVS Diode Arrays
(SPA
®
Diodes)
General Purpose ESD Protection - AQxx Series
SD Series
AQ15 Electrical Characteristics
(T
OP
=25ºC)
Parameter
Reverse Standoff Voltage
Reverse Voltage Drop
Leakage Current
Clamp Voltage
1
Dynamic Resistance
2
Peak Pulse Current
ESD Withstand Voltage
1
Diode Capacitance
1
Symbol
V
RWM
V
R
I
LEAK
V
C
R
DYN
I
pp
V
ESD
C
I/O-GND
Test Conditions
I
R
≤1μA
I
R
=1mA
V
R
=15V
I
PP
=1A, t
p
=8/20µs,
Fwd
I
PP
=10A, t
p
=8/20µs,
Fwd
TLP tp=100ns, I/O to Ground
,
t
p
=8/20µs
IEC 61000-4-2 (Contact Discharge)
IEC 61000-4-2 (Air Discharge)
Reverse Bias=0V, f=1MHz
±30
±30
100
0.34
12.0
16.7
1.0
24.0
30.0
Min
Typ
Max
15.0
Units
V
V
μA
V
V
Ω
A
kV
kV
pF
AQ24 Electrical Characteristics
(T
OP
=25ºC)
Parameter
Reverse Standoff Voltage
Reverse Voltage Drop
Leakage Current
Clamp Voltage
1
Dynamic Resistance
2
Peak Pulse Current
ESD Withstand Voltage
1
Diode Capacitance
1
Symbol
V
RWM
V
R
I
LEAK
V
C
R
DYN
I
pp
V
ESD
C
I/O-GND
Test Conditions
I
R
≤1μA
I
R
=1mA
V
R
=24V
I
PP
=1A, t
p
=8/20µs,
Fwd
I
PP
=5A, t
p
=8/20µs,
Fwd
TLP tp=100ns, I/O to Ground
,
t
p
=8/20µs
IEC 61000-4-2 (Contact Discharge)
IEC 61000-4-2 (Air Discharge)
Reverse Bias=0V, f=1MHz
±30
±30
65
0.49
7
.0
26.7
1.0
34.0
42.0
Min
Typ
Max
24.0
Units
V
V
μA
V
V
Ω
A
kV
kV
pF
AQ36 Electrical Characteristics
(T
OP
=25ºC)
Parameter
Reverse Standoff Voltage
Reverse Voltage Drop
Leakage Current
Clamp Voltage
1
Dynamic Resistance
2
Peak Pulse Current
ESD Withstand Voltage
1
Diode Capacitance
1
Note:
1. Parameter is guaranteed by design and/or component characterization.
2.Transmission Line Pulse (TLP) with 100ns width, 2ns rise time, and average window t1=70ns to t2= 90ns
Symbol
V
RWM
V
R
I
LEAK
V
C
R
DYN
I
pp
V
ESD
C
I/O-GND
Test Conditions
I
R
≤1μA
I
R
=1mA
V
R
=36V
I
PP
=1A, t
p
=8/20µs,
Fwd
I
PP
=5A, t
p
=8/20µs,
Fwd
TLP tp=100ns, I/O to Ground
,
t
p
=8/20µs
IEC 61000-4-2 (Contact Discharge)
IEC 61000-4-2 (Air Discharge)
Reverse Bias=0V, f=1MHz
Min
40.0
Typ
Max
36.0
1.0
50.0
62.0
Units
V
V
μA
V
V
Ω
A
kV
kV
0.61
5.0
±30
±30
50
pF
©2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revision: 09/21/17
®
TVS Diode Arrays
(SPA
®
Diodes)
General Purpose ESD Protection - AQxx Series
SD Series
Non-Repetitive Peak Pulse Power vs. Pulse Time
10
pk (kW)
Capacitance vs. Bias
300
270
240
Capacitance (pF)
Peak Pulse Power - P
1
210
180
150
120
90
60
30
0
AQ12
AQ15
AQ24
SD24C
AQ36
SD36C
AQ05
0.1
0.01
0.1
1
Pulse Duration - t p (µs)
10
100
1000
0
3
6
9
12 15 18 21 24 27 30 33 36
Bias Voltage (V)
Power Derating Curve
110
100
90
% of Rated Power I
PP
8/20μs Pulse Waveform
110%
100%
90%
80%
80
60
50
40
30
20
10
0
0
25
50
75
100
125
150
Percent of I
PP
70
70%
60%
50%
40%
30%
20%
10%
0%
0.0
5.0
10.0
15.0
20.0
25.0
30.0
Ambient Temperature - T
A
C)
(
o
Time ( s)
AQ05 Transmission Line Pulsing(TLP) Plot
22
20
18
16
AQ12 Transmission Line Pulsing(TLP) Plot
22
20
18
16
TLP Current (A)
TLP Current (A)
14
12
10
8
6
4
2
0
0
2
4
6
8
10
12
14
14
12
10
8
6
4
2
0
0
2
4
6
8
10
12
14
16
18
20
22
TLP Voltage (V)
TLP Voltage (V)
©2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revision: 09/21/17
®
TVS Diode Arrays
(SPA
®
Diodes)
General Purpose ESD Protection - AQxx Series
SD Series
AQ15 Transmission Line Pulsing(TLP) Plot
22
20
18
16
AQ24 Transmission Line Pulsing(TLP) Plot
22
20
18
16
TLP Current (A)
TLP Current (A)
14
12
10
8
6
4
2
0
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
14
12
10
8
6
4
2
0
0
5
10
15
20
25
30
35
40
TLP Voltage (V)
TLP Voltage (V)
AQ36 Transmission Line Pulsing(TLP) Plot
22
20
18
16
Product Characteristics
Lead Plating
Lead Material
Lead Coplanarity
Substrate material
Body Material
Flammability
Matte Tin
Copper Alloy
0.0004 inches (0.102mm)
Silicon
Molded Epoxy
UL Recognized epoxy meeting
flammability rating V-0.
TLP Current (A)
14
12
10
8
6
4
2
0
0
5
10
15
20
25
30
35
40
45
50
55
60
TLP Voltage (V)
Notes :
1. All dimensions are in millimeters
2. Dimensions include solder plating.
3. Dimensions are exclusive of mold flash & metal burr.
4. Blo is facing up for mold and facing down for trim/form, i.e. reverse trim/form.
5. Package surface matte finish VDI 11-13.
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
150°C
Temperature
T
P
T
L
T
S(max)
Preheat
Ramp-up
t
P
Critical Zone
T
L
to T
P
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
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
©2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revision: 09/21/17
Time
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