Page 1
Features
• Very Low Forward Voltage Drop
• Guard Ring Die Construction for Transient Protection
• Ideally Suited for Automated Assembly
• Low Power Loss, High Efficiency
• Surge Overload Rating to 70A Peak
• Lead Free Finish, RoHS Compliant (Note 1)
• Green Molding Compound (No Halogen and Antimony)
(Note 2)
Top View
Green
B340LA/B
3.0A LOW VF SCHOTTKY BARRIER RECTIFIER
Mechanical Data
• Case: SMA/SMB
• Case Material: Molded Plastic. UL Flammability Classification
Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020
• Terminals: Lead Free Plating (Matte Tin Finish). Solderable per
MIL-STD-202, Method 208
• Polarity: Cathode Band or Cathode Notch
• Weight: SMA 0.064 grams (approximate)
SMB 0.093 grams (approximate)
Bottom View
Ordering Information (Note 3)
Part Number Case Packaging
B340LA-13-F SMA 5000/Tape & Reel
B340LB-13-F SMB 3000/Tape & Reel
Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied, see EU Directive 2002/95/EC Annex Notes
2. Product manufactured with Data Code 0924 (week 24, 2009) and newer are built with Green Molding Compound.
3. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Marking Information
YWW
B340Lx
B340LA = Product type marking code, ex: B340LA (SMA package)
B340LB = Product type marking code, ex: B340LB (SMB package)
= Manufacturers’ code marking
YWW = Date code marking
Y = Last digit of year (ex: 2 for 2002)
WW = Week code (01 – 53)
B340LA/B
Document number: DS30240 Rev. 10 - 2
1 of 4
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September 2010
© Diodes Incorporated
Page 2
(BR)
θ
NST
N
T
NEO
US F
O
R
R
C
URR
N
T
TANT
O
U
R
R
CUR
RENT
Maximum Ratings @T
= 25°C unless otherwise specified
A
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitance load, derate current by 20%.
Characteristic Symbol Value Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
V
V
DC Blocking Voltage
Average Rectified Output Current (Note 4) TT = 90°C IO
Non-Repetitive Peak Forward Surge Current, single sine-wave
superimposed on rated load, 60Hz
I
Thermal Characteristics
Characteristic Symbol Value Unit
Operating and Storage Temperature Range
Electrical Characteristics @T
= 25°C unless otherwise specified
A
Characteristic Symbol Min Typ Max Unit Conditions
Reverse Breakdown Voltage (Note 5)
Forward Voltage Drop
Leakage Current (Note 5)
Total Capacitance
Thermal Resistance, Junction to Terminal
Notes: 4. When mounted on alumina substrate, 180° half sine wave.
5. Short duration pulse test used to minimize self-heating effect.
100
(A)
E
D
10
WA
T = 125ºC
A
1.0
A
T = 25ºC
A
A
V
V
F
I
R
C
T
R
JT
T
J, TSTG
R
⎯
RRM
RWM
V
R
FSM
(mA)
SE
EVE
S
ANE
40
⎯
⎯
⎯
⎯
1,000
100
1.0
0.1
0.310
10
⎯ ⎯
0.350
0.450
⎯
⎯
⎯
⎯
180
25
T = 125ºC
A
T = 100ºC
A
T = 25ºC
A
B340LA/B
40 V
3.0 A
70 A
-55 to +125 °C
V
IR = 2.0mA
= 1.0A
I
F
V
I
= 3.0A
150 uA
1.0
2.0
⎯
°C/W
⎯
F
V
= 15V
R
= 20V
V
mA
pF
R
V
= 40V
R
f = 1MHz, VR = 4.0VDC
⎯
T = 100ºC
F
I, I
0.1
0
V , INSTANTANEOUS FORWARD VOLTAGE (V)
F
Fig. 1 Typical Forward Characteristics
A
0.2 0.4 0.6
0.8
1.0
I, INS
R
0.01
0
V , INSTANTANEOUS REVERSE VOLT AGE (V)
R
10
20 30
Fig. 2 Typical Reverse Characteristics
40
B340LA/B
Document number: DS30240 Rev. 10 - 2
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September 2010
© Diodes Incorporated
Page 3
C, TOT
CAPACIT
C
F
R
G
FORWAR
C
U
R
REN
T
P
FORWAR
URGE CUR
REN
T
1,000
)
E (p
AN
100
AL
T
10
0.1 1
100
(A)
10 100
V , DC REVERSE VOLTAGE (V)
R
Fig. 3 T otal Capacitance vs. Reverse Voltage
Single Half-Sine-Wave
3.0
(A)
2.5
2.0
D
1.5
E
1.0
A
0.5
F(AV),
I AVE
0
25 50 75 100 125 150
T , TERMINAL TEMPERATURE ( C)
T
Fig. 4 Forward Current Derating Curve
B340LA/B
°
80
60
D S
40
20
EAK
FSM
I,
0
110100
Fig. 5 Max Non-Repetitive Peak Forward Surge Current
NUMBER OF CYCLES AT 60 Hz
Package Outline Dimensions
A
J
B
C
D
H
G
E
T = 100°C
T
SMA
Dim Min Max
A 2.29 2.92
B 4.00 4.60
C 1.27 1.63
D 0.15 0.31
E 4.80 5.59
G 0.05 0.20
H 0.76 1.52
J 2.01 2.30
All Dimensions in mm
SMB
Dim Min Max
A 3.30 3.94
B 4.06 4.57
C 1.96 2.21
D 0.15 0.31
E 5.00 5.59
G 0.05 0.20
H 0.76 1.52
J 2.00 2.50
All Dimensions in mm
B340LA/B
Document number: DS30240 Rev. 10 - 2
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September 2010
© Diodes Incorporated
Page 4
B340LA/B
Suggested Pad Layout
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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
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website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
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hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
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.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
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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.
Copyright © 2010, Diodes Incorporated
www.diodes.com
SMA
Dimensions
Z 6.5
G 1.5
X 1.7
Y 2.5
C 4.0
IMPORTANT NOTICE
LIFE SUPPORT
Value (in mm)
SMB
Dimensions
Z 6.7
G 1.8
X 2.3
Y 2.5
C 4.3
Value (in mm)
B340LA/B
Document number: DS30240 Rev. 10 - 2
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September 2010
© Diodes Incorporated
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