DESD34VS2SO
Document number: DS37635 Rev. 1 - 2
1 of 5
www.diodes.com
August 2015
© Diodes Incorporated
DESD34VS2SO
ADVANCE INFO R MA T I O N
ADVANCED I NF ORMATION
34V CAN BUS ESD PROTECTION DIODE
Product Summary
VBR (min)
IPP (max)
36V
7A
Description
This new generation TVS is designed to protect sensitive electronics
from the damage due to ESD. The combination of small size and high
ESD surge capability makes it ideal to protect LIN and CAN
Transceiver from ESD, EMI and other Harmful Transient Voltage
Events.
Applications
Industrial Control Network
Automotive Networks
Features
350 W Peak Power Dissipation per Line (8/20µs Waveform)
Provides ESD Protection per IEC 61000-4-2 Standard:
Air ±30kV, Contact ±30kV
2 Channels of ESD Protection
High Surge Capability
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Qualified to AEC-Q101 Standards for High Reliability
PPAP Capable (Note 4)
Mechanical Data
Case: SOT23
Case Material: Molded Plastic, “Green” Molding Compound.
UL Flammability Classification Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminals: Matte Tin Finish Annealed over Alloy 42 Leadframe
(Lead Free Plating). Solderable per MIL-STD-202, Method 208
Weight: 0.009 grams (Approximate)
Ordering Information (Note 5)
Product
Compliance
Marking
Reel Size (inches)
Tape Width (mm)
Quantity per Reel
DESD34VS2SO-7
AEC-Q101
A34
7
8
3,000/Tape & Reel
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. Automotive products are AEC-Q10x qualified and are PPAP capable. Automotive, AEC-Q10x and standard products are electrically and thermally
the same, except where specified. For more information, please refer to http://www.diodes.com/quality/product_compliance_definitions/.
5. For packaging details, go to our website at http://www.diodes.com/products/packages.html.
Marking Information
Date Code Key
Year
2014
2015
2016
2017
2018
2019
2020
Code
B
C
D
E
F
G
H
Month
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Code
1
2
3
4
5
6
7
8
9
O
N
D
Device Schematic
Bottom View
SOT23
A34 = Product Type Marking Code
YM = Date Code Marking
Y = Year (ex: B = 2014)
M = Month (ex: 9 = September)
A16
YM
A34
DESD34VS2SO
Document number: DS37635 Rev. 1 - 2
2 of 5
www.diodes.com
August 2015
© Diodes Incorporated
DESD34VS2SO
ADVANC E INF O R M A TI O N
ADVANC ED I N F OR M ATIO N
Maximum Ratings (@TA = +25°C, unless otherwise specified.)
Characteristic
Symbol
Value
Unit
Conditions
Peak Pulse Power Dissipation
PPP
350
W
8/20µs, per Figure 1
Peak Pulse Current
IPP
7
A
8/20µs, per Figure 1
ESD Protection – Contact Discharge
VESD_Contact
±30
kV
IEC 61000-4-2 Standard
ESD Protection – Air Discharge
VESD_Air
±30
kV
IEC 61000-4-2 Standard
Thermal Characteristics
Characteristic
Symbol
Value
Unit
Package Power Dissipation (Note 6)
PD
300
mW
Thermal Resistance, Junction to Ambient (Note 6)
RJA
417
°C/W
Operating and Storage Temperature Range
TJ, TSTG
-65 to +150
°C
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
Characteristic
Symbol
Min
Typ
Max
Unit
Test Conditions
Reverse Standoff Voltage
VRWM
—
—
34
V
—
Channel Leakage Current (Note 7)
IRM
—
—
5
µA
VRWM = 34V
Clamping Voltage, Positive Transients
VCL
—
—
43
V
IPP = 1A, tp = 8/20μS, Figure 1
—
—
57
IPP = 7A, tp = 8/20μS, Figure 1
Breakdown Voltage
VBR
36
—
—
V
IR = 1mA
Channel Input Capacitance
CT
—
100
—
pF
VR = 0V, f = 1MHz
Notes: 6. Device mounted on FR-4 PCB pad layout (2oz copper) as shown on Diodes, Inc. suggested pad layout AP02001, which can be found on our website at
http://www.diodes.com.
7. Short duration pulse test used to minimize self-heating effect.
0125 175
150
50
100
0
T , AMBIENT TEMPERATURE ( C)
Figure 1 Power Derating Curve
A°
P , POWER DISSIPATION (mW)
D
25 100
50 75 150
200
Note 5
250
300
350
400
0
50
25 50 75 100 125 150
PEAK PULSE DERATING % OF
PEAK POWER OR CURRENT
T , AMBIENT TEMPERATURE (°C)
Figure 2 Pulse Derating Curve
A
0
100
25
75
175 200
DESD34VS2SO
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© Diodes Incorporated
DESD34VS2SO
ADVANC E INF O R M A TI O N
ADVANC ED I N F OR M ATIO N
0t, TIME ( s)
Figure 3 Typical 8 x 20µs Pulse Waveform
20 40 60
100
50
0
I , PEAK PULSE CURRENT (%I )
P ppP
0
20
40
60
80
100
120
0 5 10 15 20 25 30 35 40
Figure 4 Typical Junction Capacitance
V , REVERSE VOLTAGE (V)
R
C , JUNCTION CAPACITANCE (pF)
J
f = 1MHz
V , INSTANTANEOUS FORWARD VOLTAGE (mV)
Figure 5 Typical Forward Characteristics
F
I , INSTANTANEOUS FORWARD CURRENT (mA)
F
T = 25°C
A
T = 85°C
A
T = 125°C
A
T = 150°C
A
T = -55°C
A
0.001
0.01
0.1
1
10
100
1000
100 300 500 700 900 1100
1
10
100
0510 15 20 25 30 35
I , LEAKAGE CURRENT (nA)
R
V , REVERSE VOLTAGE (V)
R
Figure 6 Typical Reverse Characteristics
T = 25°C
A
T = 85°C
A
T = 125°C
A
T = 150°C
A
DESD34VS2SO
Document number: DS37635 Rev. 1 - 2
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August 2015
© Diodes Incorporated
DESD34VS2SO
ADVANC E INF O R M A TI O N
ADVANC ED I N F OR M ATIO N
Package Outline Dimensions
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version.
J
K1 K
L1
GAUGE PLANE
0.25
H
L
M
All 7°
A
CB
D
G
F
a
Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.
SOT23
Dim
Min
Max
Typ
A
0.37
0.51
0.40
B
1.20
1.40
1.30
C
2.30
2.50
2.40
D
0.89
1.03
0.915
F
0.45
0.60
0.535
G
1.78
2.05
1.83
H
2.80
3.00
2.90
J
0.013
0.10
0.05
K
0.890
1.00
0.975
K1
0.903
1.10
1.025
L
0.45
0.61
0.55
L1
0.25
0.55
0.40
M
0.085
0.150
0.110
a
8°
All Dimensions in mm
Dimensions
Value (in mm)
Z
2.9
X
0.8
Y
0.9
C
2.0
E
1.35
XE
Y
C
Z
DESD34VS2SO
Document number: DS37635 Rev. 1 - 2
5 of 5
www.diodes.com
August 2015
© Diodes Incorporated
DESD34VS2SO
ADVANC E INF O R M A TI O N
ADVANC ED I N F OR M ATIO N
IMPORTANT NOTICE
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
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without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
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final and determinative format released by Diodes Incorporated.
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written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
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1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
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failure of the life support device or to affect its safety or effectiveness.
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representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
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