B340LA/B
Document number: DS30240 Rev. 10 - 2 1 of 4
www.diodes.com September 2010
© Diodes Incorporated
B340LA/B
3.0A LOW VF SCHOTTKY BARRIER RECTIFIER
Features
• Very Low Forward Voltage Drop
• Guard Ring Die Construction for Transient Protect ion
• 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)
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)
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
Top View Bottom View
Green
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)
YWW
B340Lx
B340LA/B
Document number: DS30240 Rev. 10 - 2 2 of 4
www.diodes.com September 2010
© Diodes Incorporated
B340LA/B
Maximum Ratings @TA = 25°C unless otherwise specified
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
DC Blocking Voltage
VRRM
VRWM
VR 40 V
Average Rectified Output Current (Note 4) TT = 90°C IO 3.0 A
Non-Repetitive Peak Forward Surge Current, single sine-wave
superimposed on rated load, 60Hz IFSM 70 A
Thermal Characteristics
Characteristic Symbol Value Unit
Operating and Storage Temperature Range TJ, TSTG -55 to +125 °C
Electrical Characteristics @TA = 25°C unless otherwise specified
Characteristic Symbol Min Typ Max Unit Conditions
Reverse Breakdown Voltage (Note 5) V
(
BR
)
R 40 ⎯ ⎯ V IR = 2.0mA
Forward Voltage Drop VF ⎯
⎯ 0.310
⎯ 0.350
0.450 V IF = 1.0A
IF = 3.0A
Leakage Current (Note 5) IR
⎯
⎯150 uA
VR = 15V
VR = 20V
VR = 40V
⎯
⎯ 1.0
2.0 mA
Total Capacitance CT ⎯ 180 ⎯ pF f = 1MHz, VR = 4.0VDC
Thermal Resistance, Junction to Terminal R
θ
JT ⎯ 25 ⎯ °C/W ⎯
Notes: 4. When mounted on alumina substrate, 180° half sine wave.
5. Short duration pulse test used to minimize self-heating effect.
0.1
1.0
10
100
00.2 0.4 0.6 0.8 1.0
I, I
N
S
T
A
N
T
A
N
E
O
U
S
F
O
R
WA
R
D
C
U
R
R
E
N
T
(A)
F
V , INSTANTANEOUS FORW ARD VOLTAGE (V)
Fig. 1 Typical Forward Characteristics
F
T = 25ºC
A
T = 125ºC
A
T = 100ºC
A
10
020 30 40
I, INS
T
AN
T
ANE
O
U
S
R
EVE
R
SE
C
U
R
R
EN
T
(mA)
R
V , INSTANT ANEOUS REVERSE VOLT AGE (V)
Fig. 2 Typical Reverse Characteristics
R
T = 125ºC
A
T = 100ºC
A
T = 25ºC
A
100
10
1.0
0.1
0.01
1,000
B340LA/B
Document number: DS30240 Rev. 10 - 2 3 of 4
www.diodes.com September 2010
© Diodes Incorporated
B340LA/B
10
100
1,000
0.1 1 10 100
C
,
T
O
T
AL
C
A
P
A
C
I
T
AN
C
E (p
F
)
T
V , DC REVERSE VOLTAGE (V)
Fig. 3 Total Capacitance vs. Reverse Voltage
R
0
0.5
1.0
25 50 75 100 125 150
I AVE
R
A
G
E
F
O
R
WA
R
D
C
U
R
R
E
N
T
(A)
F(AV),
T , TERMINAL TEMPERATURE ( C)
Fig. 4 Forward Current Derating Curve
T
°
1.5
2.0
2.5
3.0
0
20
40
60
80
100
110100
I,
P
EAK
F
O
R
WA
R
D S
U
R
G
E
C
U
R
R
E
N
T
(A )
FSM
NUMBER OF CYCLES A T 6 0 Hz
Fig. 5 Max Non-Repetitive Peak Forward Surge Current
Single Half-Sine-Wave
T = 100°C
T
Package Outline Dimensions
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
A
B
C
D
G
H
E
J
B340LA/B
Document number: DS30240 Rev. 10 - 2 4 of 4
www.diodes.com September 2010
© Diodes Incorporated
B340LA/B
Suggested Pad Layout
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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trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
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website, harmless against all damages.
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Should Customers purchase or use Diodes Incorporated p roducts for any unintended or una uthorized application, Customers shall indemnify and
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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 p atents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
LIFE SUPPORT
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 pro ducts and an y
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
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
SMB
Dimensions Value (in mm)
Z 6.7
G 1.8
X 2.3
Y 2.5
C 4.3
SMA
Dimensions Value (in mm)
Z 6.5
G 1.5
X 1.7
Y 2.5
C 4.0
