BAS40W /-04 /-05 /-06
SURFACE MOUNT SCHOTTKY BARRIER DIODE
Features
• Low Forward Voltage Drop
• Fast Switching
• Ultra-Small Surface Mount Package
• PN Junction Guard Ring for Transient and ESD Protection
• Lead Free/RoHS Compliant (Note 3)
• "Green" Device (Note 4 and 5)
Mechanical Data
• Case: SOT-323
• Case Material: Molded Plastic, "Green" Molding Compound,
Note 4. UL Flammability Classification Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020D
• Terminals: Solderable per MIL-STD-202, Method 208
• Lead Free Plating (Matte Tin Finish annealed over Alloy 42
leadframe).
• Polarity: See Diagrams Below
• Marking Information: See Page 2
• Ordering Information: See Page 2
• Weight: 0.006 grams (approximate)
Top View BAS40W BAS40W-04 BAS40W-05 BAS40W-06
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 40 V
RMS Reverse Voltage VR(RMS) 28 V
Forward Continuous Current (Note 1) IFM 200 mA
Non-Repetitive Peak Forward Surge Current @ t = 1.0s IFSM 600 mA
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 1) PD 200 mW
Thermal Resistance Junction to Ambient Air (Note 1) RθJA 625 °C/W
Operating Temperature Range TJ -55 to +125 °C
Storage Temperature Range TSTG -65 to +150 °C
Electrical Characteristics @TA = 25°C unless otherwise specified
Characteristic Symbol Min Max Unit Test Condition
Reverse Breakdown Voltage (Note 2) V(BR)R 40 ⎯ V IR = 10μA
Forward Voltage VF ⎯ 380
1000 mV
mV IF = 1.0mA, tp < 300μs
IF = 40mA, tp < 300μs
Leakage Current (Note 2) IR ⎯ 200 nA VR = 30V
Total Capacitance CT ⎯ 5.0 pF VR = 0, f = 1.0MHz
Reverse Recovery Time trr ⎯ 5.0 ns IF = IR = 10mA,
Irr = 0.1 x IR, RL = 100Ω
Notes: 1. Device mounted on FR4 PC board with recom m ended pad layout, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
2. Short duration pulse test used to minimize self-heating effect.
3. No purposefully added lead.
4. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
5. Product manufactured with Date Code 0627 (week 27, 2006) and newer are built with Green Molding Compound. Product manufactured prior to Date
Code 0627 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
BAS40W /-04 /-05 /-06
Document number: DS30114 Rev. 14 - 2 1 of 3
www.diodes.com July 2008
© Diodes Incorporated
BAS40W /-04 /-05 /-06
0.1
1
10
100
1,000
10,000
010 20 30 40
V , INSTANTANEOUS REVERSE VOLTAGE (V)
Fig. 2 Typical Reverse Characteristics
R
I , INS
T
AN
T
ANE
O
U
S
R
EVE
R
SE
C
U
R
R
EN
T
(nA)
R
0.01
0.1
1
0.001
0.000101.0
0.6 0.8
0.40.2
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 VOLT AGE (V)
Fig. 1 Typical Forward C haracte r is ti cs
F
0120 200
250
200
150
50
40 80 160
100
0
T , AMBIENT TEMPERA TURE ( C)
Fig. 4 Power Derating Curve, Total Package
A
°
P
,
P
O
WE
R
DISSI
P
A
T
I
O
N (mW)
D
0
1
3
2
010 20 40
30
C
,
T
O
T
AL
C
A
P
A
C
I
T
A
N
C
E (p
F
)
T
V , DC REVERSE VOL TAGE (V)
Fig . 3 Tot al Capacitance vs . R everse Vol t age
R
Ordering Information (Notes 5 & 6)
Part Number Case Packaging
BAS40W-7-F SOT-323 3000/Tape & Reel
BAS40W-04-7-F SOT-323 3000/Tape & Reel
BAS40W-05-7-F SOT-323 3000/Tape & Reel
BAS40W-06-7-F SOT-323 3000/Tape & Reel
Notes: 6. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Marking Information xxx = Product Type Marking Code
K43 = BAS40W
K44 = BAS40W-04
K45 = BAS40W-05
K46 = BAS40W-06
YM = Date Code Marking
Y = Year (ex: N = 2002)
M = Month (ex: 9 = September)
xxx
YM
Date Code Key
BAS40W /-04 /-05 /-06
Document number: DS30114 Rev. 14 - 2 2 of 3
www.diodes.com July 2008
© Diodes Incorporated
Year 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Code L M N P R S T U V W X Y Z A B C
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
BAS40W /-04 /-05 /-06
Document number: DS30114 Rev. 14 - 2 3 of 3
www.diodes.com July 2008
© Diodes Incorporated
BAS40W /-04 /-05 /-06
Package Outline Dimensions
Suggested Pad Layout
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product
described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products 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 our website,
harmless against all damages. LIFE SUPPORT
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written
approval of the President of Diodes Incorporated.
A
M
JL
DF
BC
H
K
G
TOP VIEW
SOT-323
Dim Min Max Typ
A 0.25 0.40 0.30
B 1.15 1.35 1.30
C 2.00 2.20 2.10
D - - 0.65
F 0.30 0.40 0.425
G 1.20 1.40 1.30
H 1.80 2.20 2.15
J 0.0 0.10 0.05
K 0.90 1.00 1.00
L 0.25 0.40 0.30
M 0.10 0.18 0.11
α 0° 8° -
All Dimensions in mm
X E
Y
C
Z
Dimensions Value (in mm)
Z 2.8
X 0.7
Y 0.9
C 1.9
E 1.0
