PAGE . 1
December 14,2011-REV.06
BAS40WS
SURFACE MOUNT SCHOTTKY DIODES
VOLTAGE 40 Volts 0.2 Amperes
FEATURES
• Fast switching speed
• Surface mount package ideally suited for automatic insertion
Electrical identical standard JEDEC
• High conductor
• Lead free in comply with EU RoHS 2002/95/EC directives.
• Green molding compound as per IEC61249 Std. . (Halogen
Free)
MECHANICAL DATA
• Case: SOD-323, Plastic
• Terminals: Solderable per MIL-STD-750, Method 2026
• Approx. Weight: 0.00014 ounces, 0.0041 grams
• Marking: S40
• Polarity:Color band denotes cathode end
CURRENT
ABSOLUTE RATINGS (TA=25oC unless otherwise noted)
THERMAL CHARACTERISTICS (TA=25oC unless otherwise noted)
PARAMETER SYMBOL LIMITS UNITS
Reverse Voltage V
R
40 V
Peak Reverse Voltage V
RRM
40 V
Average Rectified Current at Temp=25
o
CI
F
0.2 A
Non-repetitive Peak Forward Surge Current at t=1ms I
FSM
4A
PARAMETER Symbol BAS40WS Units
Power Dissipation P
TOT
225 mW
Thermal Resistance , Junction to Ambient R
θJA
556
O
C/W
Operating Junction Temperature and Storage Temperature T
J
,T
STG
-55 to 150
O
C
12
C athode A nod
e
0.078(1.95)
0.068(1.75)
0.054(1.35)
0.045(1.15)
0.107(2.7)
0.090(2.3)
0.012(0.30)MIN.
0.006(0.15)
0.002(0.05)
0.014(0.35)
0.009(0.25) 0.038(0.95)
0.027(0.70)
PAGE . 2
December 14,2011-REV.06
BAS40WS
ELECTRICAL CHARACTERISTICS (TA=25oC unless otherwise noted)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNITS
Reverse Breakdown Voltage V
BR
I
R
=10μA40----V
Re ver s e Current I
R
V
R
=25
V
V
R
=40
V-- -- 1.0
10 μA
Forward Voltage V
F
I
F
=1.0mA
I
F
=10mA
I
F
=40mA -- -- 0.38
0.50
1.00 V
Total Ca pac itance C
T
V
R
=0V,
f=1.0MH
Z
-- -- 5.0 pF
FIG. 1-TYPICAL FORWARD CHARACTERISTIC FIG. 2-TYPICAL REVERSE CHARACTERISTICS
FIG. 4 FORWARD CURRENT DERATINGFIG. 3 TYPICAL JUNCTION CAPACITANCE
0
200
300
400
100
50 100 150 200
FORWARD CURRENT, mA
FORWARD VOLTAGE, Volts
REVERSE CURRENT, Au
REVERSE VOLTAGE, Volts
REVERSE VOLTAGE, Volts
AVERAGE FORWARD CURRENT, mA
JUNCTION CAPACITANCE, pF
AMBIENT TEMPERATURE( C)
O
0
0.1
1.0
10
100
0.4 0.6 0.8 1.0
T=25C
A
O
0
0
0.01
0.1
1.0
10
100
10 20 30 40
T=25C
J
O
T=75C
J
O
T =125 C
J
O
0
0
1.5
3.0
4.5
10 20 30 40
RATING AND CHARACTERISTIC CURVES
PAGE . 3
LEGAL STATEMENT
Copyright PanJit International, Inc 2012
The information presented in this document is believed to be accurate and reliable. The specifications and information herein
are subject to change without notice. Pan Jit makes no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose. Pan Jit products are not authorized for use in life support devices or systems. Pan Jit
does not convey any license under its patent rights or rights of others.
MOUNTING PAD LAYOUT
ORDER INFORMATION
• Packing information
T/R - 12K per 13" plastic Reel
T/R - 5K per 7" plastic Reel
BAS40WS
December 14,2011-REV.06
