BAT42WS / BAT43WS
Document number: DS30100 Rev. 14 - 2 1 of 4
www.diodes.com June 2012
© Diodes Incorporated
BAT42WS / BAT43WS
SURFACE MOUNT SCHOTTKY BARRIER DIODE
Features
• Low Forward Voltage Drop
• Fast Switching
• Ultra-Small Surface Mount Package
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Notes 3 & 4)
Mechanical Data
• Case: SOD323
• Case Material: Molded Plastic. UL Flammability Classification
Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020
• Leads: Matte Tin Finish annealed over Alloy 42 leadframe (Lead
Free Plating). Solderable per MIL-STD-202, Method 208
• Polarity: Cathode Band
• Weight: 0.004 grams (approximate)
Ordering Information (Note 5)
Part Number Case Packaging
BAT42WS-7-F SOD323 3000/Tape & Reel
BAT43WS-7-F SOD323 3000/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 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. Product manufactured with Date Code V9 (week 33, 2008) and newer are built with Green Molding Compound. Product manufactured prior to Date Code
V9 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
5. For packaging details, go to our website at http://www.diodes.com.
Marking Information
Top View
SOD323
xx = Product Type Marking Code,
S7 = BAT42WS
S8 = BAT42WS and BAT43WS
XX
BAT42WS / BAT43WS
Document number: DS30100 Rev. 14 - 2 2 of 4
www.diodes.com June 2012
© Diodes Incorporated
BAT42WS / BAT43WS
Maximum Ratings @TA = 25°C unless otherwise specified
Characteristic Symbol Value Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR 30 V
RMS Reverse Voltage VR
(
RMS
)
21 V
Forward Continuous Current (Note 6) IFM 200 mA
Repetitive Peak Forward Current (Note 6) @ t < 1.0s IFRM 500 mA
Non-Repetitive Peak Forward Surge Current @ t < 10ms IFSM 4.0 A
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 6) PD 200 mW
Thermal Resistance Junction to Ambient Air (Note 6) R
θ
JA 625 °C/W
Operating and Storage Temperature Range TJ, TSTG -55 to +125 °C
Electrical Characteristics @TA = 25°C unless otherwise specified
Characteristic Symbol Min Max Unit Test Condition
Reverse Breakdown Voltage (Note 7) V
(
BR
)
R 30 ⎯ V IR = 100μA
Forward Voltage Drop
Both Types
VF
⎯ 1.0
V
IF = 200mA
BAT42WS ⎯ 0.40 IF = 10mA
BAT42WS ⎯ 0.65 IF = 50mA
BAT43WS 0.26
0.33 IF = 2.0mA
BAT43WS ⎯ 0.45 IF = 15mA
Reverse Current (Note 7) IR ⎯ 500 nA
VR = 25V
⎯ 100 μA VR = 25V, TJ = 100°C
Total Capacitance CT ⎯ 10 pF
VR = 1.0, f = 1.0MHz
Reverse Recovery Time trr ⎯ 5.0 ns
IF = IR = 10mA,
Irr = 0.1 x IR, RL = 100Ω
Notes: 6. Part mounted on FR4 PC Board with recommended pad layout, which can be found on our website at http://www.diodes.com.
7. Short duration pulse test used to minimize self-heating effect.
BAT42WS / BAT43WS
Document number: DS30100 Rev. 14 - 2 3 of 4
www.diodes.com June 2012
© Diodes Incorporated
BAT42WS / BAT43WS
0.1
1.0
10
100
0200
400 600 800
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
(mA)
F
V , INSTANTANEOUS FORW ARD VOLTAGE (mV)
Fig. 1 Typical Forward Characteristics
F
T = -25ºC
A
T = 25ºC
A
T = 125ºC
A
T = 75ºC
A
10
020 30 40
V , INSTANTANEOUS REVERSE VOLTAGE (V)
Fig. 2 Typical Reverse Characteristics
R
T = 125ºC
A
T = 75ºC
A
T = 25ºC
A
100
10
1.0
0.1
0.01
1,000
I , INSTANTANEOUS REVERSE CURRENT (µA)
R
1.0
10
100
01510 25 30 35
20 40
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
5.0
T = 25C
J
°
f = 1MHz
00
20
40
25 50 75 100 125 150
I, AVE
R
A
G
E
R
E
C
T
I
F
IED
C
U
R
R
EN
T
(mA)
O
T , AMBIENT T EMPERATU RE ( C)
Fig. 4 Forward Current Derating Curve
A
°
60
80
100
T = 125C
J
°
Package Outline Dimensions
SOD323
Dim Min Max
A 0.25 0.35
B 1.20 1.40
C 2.30 2.70
H 1.60 1.80
J 0.00 0.10
K 1.0 1.1
L 0.20 0.40
M 0.10 0.15
α 0° 8°
All Dimensions in mm
K
L
MJ
C
H
BA
BAT42WS / BAT43WS
Document number: DS30100 Rev. 14 - 2 4 of 4
www.diodes.com June 2012
© Diodes Incorporated
BAT42WS / BAT43WS
Suggested Pad Layout
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
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).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
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 Cus tomer or user of this document or prod ucts 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.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated p roducts for any unintended or una uthorized application, Customers shall indemnify and
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 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 e xpress
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 © 2012, Diodes Incorporated
www.diodes.com
Dimensions Value (in mm)
Z 3.75
G 1.05
X 0.65
Y 1.35
C 2.40
Z
X
C
GY
