One-line Bi-directional TVS Diode
AOZ8231
General Description
The AOZ8231 is a one-line bi-directional transient
voltage suppressor diode designed to protect voltage
sensitive electronics from high transient conditions and
ESD.
This device incorporates one TVS diode in an ultra-small
SOD923 package. It may be used to meet the ESD
immunity requirements of IEC 61000-4-2, Level 4
(±15kV air, ±8kV contact discharge).
The AOZ8231 comes in an RoHS compliant SOD923
package and is rated over a -40°C to +85°C ambient
temperature range.
The ultra-small 1.0 x 0.6 x 0.4mm SOD923 package
makes it ideal for applications where PCB space is a
premium. The small size and high ESD protection
makes it ideal for protecting voltage sensitive electronics
from high transient conditions and ESD.
Features
●
ESD protection for high-speed data lines:
–
Exceeds: IEC 61000-4-2 (ESD) ±24kV (air),
±24kV (contact)
–
Human Body Model (HBM) ±30kV
–
IEC 61000-4-5 (Lightning) ±5A (8/20µS)
–
IEC 61000-4-4 (EFT) ±40A
●
●
●
●
●
Small package saves board space
Low insertion loss
Low clamping voltage
Low operating voltage: 5.0V
Pb-free device
Applications
●
●
●
●
●
●
Portable handheld devices
Keypads, data lines, buttons
Notebook computers
Digital Cameras
Portable GPS
MP3 players
Typical Application
Pin Configuration
Signal Line
Bidirection Protection of Single Line
Rev. 1.9 October 2008
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Page 1 of 6
AOZ8231
Ordering Information
Part Number
AOZ8231NI-05L
Ambient Temperature Range
-40°C to +85°C
Package
SOD923
Environmental
RoHS Compliant
Green Product
•
All AOS products are offered in packages with Pb-free plating and compliant to RoHS standards.
•
Parts marked as Green Products (with “L” suffix) use reduced levels of Halogens, and are also RoHS compliant.
Please visit
www.aosmd.com/web/quality/rohs_compliant.jsp
for additional information.
Absolute Maximum Ratings
Exceeding the Absolute Maximum ratings may damage the device.
Parameter
VP – VN
Peak Pulse Current (I
PP
), t
P
= 8/20µs
Storage Temperature (T
S
)
ESD Rating per IEC61000-4-2, Contact
(1)
ESD Rating per IEC61000-4-2, Air
(1)
ESD Rating per Human Body Model
(2)
Notes:
1. IEC 61000-4-2 discharge with C
Discharge
= 150pF, R
Discharge
= 330Ω.
2. Human Body Discharge per MIL-STD-883, Method 3015 C
Discharge
= 100pF, R
Discharge
= 1.5kΩ.
Rating
5V
5A
-65°C to +150°C
±24kV
±24kV
±30kV
Maximum Operating Ratings
Parameter
Junction Temperature (T
J
)
Rating
-40°C to +85°C
Electrical Characteristics
T
A
= 25°C unless otherwise specified.
Symbol
I
PP
V
CL
V
RWM
I
R
V
BR
Parameter
Maximum Reverse Peak Pulse Current
Clamping Voltage @ I
PP
Working Peak Reverse Voltage
Maximum Reverse Leakage Current @ V
RWM
Breakdown Voltage @ I
T
Symbol
I
T
I
F
V
F
P
pk
C
J
Test Current
Parameter
Forward Current
Forward Voltage @ I
F
Peak Power Dissipation
Max. Capacitance @ V
R
= 0 and f = 1MHz
Electrical Characteristics
T
A
= 25°C unless otherwise noted, V
F
= 0.9V Max. @ I
F
= 10mA for all types
Device
AOZ8231NI-05L
Device
Marking
HG
V
RWM
(V)
Max.
5.0
V
BR
(V)
Min.
6.0
I
R
(µA)
Max.
0.1
V
F
(V)
Typ.
1.0
V
CL
Max.
I
PP
= 1A
12.00
I
PP
= 5A
14.00
I
PP
= 12A
18.00
C
J
(pF)
Typ.
12
Rev. 1.9 October 2008
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Page 2 of 6
AOZ8231
Typical Performance Characteristics
Clamping Voltage vs. Peak Pulse Current
20
Clamping Voltage, V
CL
(V)
I/O – Gnd Insertion Loss (S21) vs. Frequency
(Vp = 3.3V)
5
0
Insertion Loss (dB)
(tperiod = 100ns, tr = 1ns)
18
16
14
12
10
8
-5
-10
-15
-20
-25
0
2
4
6
8
10
12
1
10
100
Frequency (MHz)
1000
10000
Peak Pulse Current, I
PP
(A)
Capacitance vs. Reverse Bias
13
12
Capacitance (pF)
11
10
9
8
7
6
0
1
2
3
4
5
Reverse Bias (Volts)
Rev. 1.9 October 2008
www.aosmd.com
Page 3 of 6
AOZ8231
Package Dimensions, SOD923
E1
Cathode Mark
b
D
L
B
E
A
aaa
C A B
TOP VIEW
BOTTOM VIEW
View ‘C’
A
C
Seating
Plane
c
A1
SIDE VIEW
VIEW ‘C’
RECOMMENDED LAND PATTERN
0.90
Dimensions in millimeters
Symbols
A
A1
b
c
D
E
Min.
—
0.00
0.15
0.07
0.55
0.75
0.95
0.15
Nom.
—
—
0.20
0.12
0.60
0.80
1.00
0.20
0.08
Max.
0.41
0.05
0.25
0.14
0.65
0.85
1.05
0.25
Dimensions in inches
Symbols
A
A1
b
c
D
E
E1
L
aaa
Min.
—
0.00
0.006
0.003
0.022
0.030
0.037
0.006
Nom.
—
—
0.008
0.005
0.024
0.031
0.039
0.008
0.003
Max.
0.016
0.002
0.010
0.006
0.026
0.033
0.041
0.010
0.40
UNIT: mm
0.30
E1
L
aaa
Notes:
1. All dimensions are in millimeters.
2. Dimensions are inclusive of plating.
3. Controlling dimension is millimeter, converted inch dimensions are not necessarily exact.
4. The cathode mark is optional.
5. Package body sizes exclude mold flash and gate burrs. Mold flash at the non-lead sides should be less than 3 mils each.
Rev. 1.9 October 2008
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Page 4 of 6
AOZ8231
Tape and Reel Dimensions, SOD923
Tape
P1
P2
D0
D1
E1
B - B’
Section
K0
Max 5°
E2
E
B0
P0
A0
Max 5°
A - A’
Section
UNIT: mm
Feeding Direction
Package
SOD923
A0
B0
K0
D0
D1
E
8.0
±0.2
E1
1.75
±0.1
E2
P0
P1
4.0
±0.1
P2
T
0.70 1.12 0.48 ø1.50 ø0.5
±0.05 ±0.05 ±0.05 ±0.1 ±0.05
3.5
2.0
±0.05 ±0.05
2.0 0.229
±0.05 ±0.02
Reel
2xR6
60°
30°
W1
S1
S
2xR5
1.1
+0.1
-0
M
ø26.15
-0
+0.1
K
N
K1
E
H
H1
W
Back View
UNIT: mm
Arbor Hole
Detail A
Barcode
Label
Section: B - B’
Front View
Tape Size
8mm
Reel Size
ø180
M
ø177.7
±0.5
N
ø54.4
±0.5
W
8.8
±0.5
W1
1.15
+0.2 / -0.0
H
ø13.2
±0.3
H1
ø15.8
K
10.4
K1
11.7
S
S1
E
2.8
±0.1
2.3 4.9
±0.1 ±0.1
Leader/Trailer and Orientation
Cathode
Trailer Tape
300mm min.
Rev. 1.9 October 2008
Components Tape
Orientation in Pocket
Leader Tape
500mm min.
Page 5 of 6
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