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BAT41 Series
Low capacitance small signal Schottky diodes
Main product characteristics
IF VRRM C (typ) Tj (max) 200 mA 100 V 3 pF 150 C
BAT41ZFILM (Single)
SOD-123
Features and benefits

BAT41JFILM (Single)
SOD-323
Low leakage current losses Negligible switching losses Low forward and reverse recovery times Extremely fast switching Surface mount device Low capacitance diode
BAT41KFILM (Single)
SOD-523
Description
The BAT41 series uses 100 V Schottky barrier diodes packaged in SOD-123, SOD-323, SOD523, SOT-323, or SOT-666. This series is specially suited for switching mode with low IR losses
BAT41WFILM (Single) BAT41CWFILM (Common cathode) BAT41AWFILM (Common anode)
SOT-323
Order codes
Part Number BAT41ZFILM BAT41WFILM BAT41SWFILM BAT41CWFILM BAT41AWFILM BAT41JFILM BAT41KFILM BAT41-09P6FILM BAT41-07P6FILM Marking Z41 B41 S41 C41 A41 41 41 Q1 P1
BAT41SWFILM (Series)
BAT41-07P6FILM (2 parallel diodes)
SOT-666
BAT41-09P6FILM (2 opposite diodes)
Configurations in top view
August 2006
Rev 1
1/12
www.st.com
Characteristics
BAT41 Series
1
Table 1.
Symbol VRRM IF IFSM Tstg Tj
Characteristics
Absolute ratings (limiting values at Tj = 25 C, unless otherwise specified)
Parameter Repetitive peak reverse voltage Continuous forward current Surge non repetitive forward current Storage temperature range Maximum operating junction temperature tp = 10 ms Sinusoidal Value 100 200 1 -65 to +150 150 Unit V mA A C C
Table 2.
Symbol
Thermal parameters
Parameter SOD-123 Value 500 550 600 C/W Unit
Rth(j-a)
Junction to
ambient(1)
SOT-323, SOD-323 SOD-523, SOT-666
1. Epoxy printed circuit board with recommended pad layout
Table 3.
Symbol IR(1) VF(2)
Static electrical characteristics
Parameter Reverse leakage current Test conditions Tj = 25 C Tj = 100 C Forward voltage drop Tj = 25 C VR = 50 V IF = 1 mA IF = 200 mA 400 Min. Typ Max. 0.1 A 20 450 mV 1000 Unit
1. Pulse test: tp = 5 ms, < 2 % 2. Pulse test: tp = 380 s, < 2 %
Table 4.
Symbol C
Dynamic characteristics
Parameter Diode capacitance Test conditions VR = 1 V, F = 1 MHz Min. Typ 3 Max. 10 Unit pF
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BAT41 Series
Characteristics
Figure 1.
P(W)
0.22 0.20 0.18 0.16 0.14 0.12 0.10 0.08 0.06
Average forward power dissipation Figure 2. versus average forward current
IF(AV)(A)
0.22
Average forward current versus ambient temperature ( = 1)
= 0.05
= 0.1
= 0.2
= 0.5
0.20 0.18
=1
0.16 0.14 0.12 0.10 0.08
T
0.04 0.02 0.00 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16
0.06
T
0.04 0.02
IF(AV)(A)
=tp/T
0.18 0.20 0.22
tp
0.00 0.24 0
=tp/T
25
tp
50
Tamb(C)
75 100 125 150
Figure 3.
Reverse leakage current versus reverse applied voltage (typical values)
Figure 4.
Reverse leakage current versus junction temperature (typical values)
IR(A)
1.E+03
Tj=150C
IR(A)
1.E+03
VR=50V
1.E+02
Tj=125C
1.E+02
1.E+01 1.E+01
Tj=100C
1.E+00 1.E+00
Tj=75C
Tj=50C
1.E-01
1.E-01
Tj=25C
1.E-02
1.E-02 0 20 40
VR(V)
60 80 100
Tj(C)
1.E-03 0 25 50 75 100 125 150
Figure 5.
Junction capacitance versus reverse applied voltage (typical values)
F=1MHz VOSC=30mVRMS Tj=25C
Figure 6.
Forward voltage drop versus forward current (typical values)
C(pF)
10.0 1.E+00
IFM(A)
1.E-01
Tj=75C
1.0
1.E-02
Tj=-40C
1.E-03
VR(V)
0.1 1.0 10.0 100.0 1.E-04 0.0 0.1 0.2 0.3 0.4 0.5
VFM(V)
0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3
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Characteristics
BAT41 Series
Figure 7.
Forward voltage drop versus forward current (typical values)
Figure 8.
Variation of thermal impedance junction to ambient versus pulse duration (printed circuit board, epoxy FR4, eCU=35 m, SOT323-6L)
IFM(A)
1.E+00
1000
Zth(j-a)(C/W)
SOT323-6L
1.E-01
Tj=100C
Tj=125C
1.E-02
Tj=25C
100
Single pulse
1.E-03
VFM(V)
1.E-04 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2
10 1.E-02 1.E-01
tp(s)
1.E+00 1.E+01 1.E+02
Figure 9.
Relative variation of thermal impedance junction to ambient versus pulse duration (alumine substrate, SOT-23) (printed circuit board, epoxy FR4, eCU=35 m, SOD-323)
Figure 10. Relative variation of thermal impedance junction to ambient versus pulse duration (printed circuit board, epoxy FR4, eCU=35 m, SOT-666 and SOD-523)
Zth(j-a)/Rth(j-a)
1.00
Zth(j-a)/Rth(j-a)
1.00
SOT-23 Alumine substrate 10 x 8 x 0.5 mm
SOD-523 Epoxy FR4 eCU = 35 m SOD-323 Epoxy FR4 SCU = 2.25 mm2 eCU = 35 m
Single pulse
0.10
0.10
Single pulse
SOT-666 Epoxy FR4 eCU = 35 m
tp(s)
0.01 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 0.01 1.E-03 1.E-02
tp(s)
1.E-01 1.E+00 1.E+01
Figure 11. Thermal resistance junction to ambient versus copper surface under each lead (printed circuit board, epoxy FR4, eCU=35 m, SOD-323)
Rth(j-a)(C/W)
600
550
500
450
400
350
SCU(mm)
300 0 5 10 15 20 25 30 35 40 45 50
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BAT41 Series
Ordering information scheme
2
Ordering information scheme
BAT41
Signal Schottky diodes VRRM = 100 V Configuration No letter = Single diode A = Common anode C = Common cathode S = Series diodes 07 = Parallel diodes 09 = Opposite diodes Package J = SOD-323 W = SOT-323 K = SOD-523 P6 = SOT-666 Z = SOD-123 Packing FILM = Tape and reel
xx
xx FILM
5/12
Package information
BAT41 Series
3
Package information
Epoxy meets UL94, V0 Table 5. SOD-123 dimensions
Dimensions Ref.
H A2 A1 b E
Millimeters Min. Max. 1.45 0 0.85 0.1 1.35 0
Inches Min. Max. 0.057 0.004 0.053
A A1
D
A
A2 b
0.033
0.55 Typ. 0.15 Typ. 2.55 1.4 0.25 3.55 3.95 2.85 1.7
0.022 Typ. 0.039 Typ. 0.1 0.055 0.01 0.14 0.156 0.112 0.067
c
c D E
G
G H
Figure 12. SOD-123 footprint (dimensions in mm)
4.45
0.65
0.97
2.51
0.97
6/12
BAT41 Series Table 6. SOD-323 dimensions
Package information
Dimensions
H b E A1
Ref.
Millimeters Min. Max. 1.17 0 0.25 0.1 1.52 1.11 2.3 0.1 0.1 0.1 0.44 0.25 1.8 1.45 2.7 0.46 0.41 0
Inches Min. Max. 0.046 0.004 0.017 0.01 0.071 0.057 0.106 0.02 0.016
A A1
D A
b c
0.01 0.004 0.06 0.044 0.09 0.004 0.004
c
Q1
D E H
L
L Q1
Figure 13. SOD-323 footprint (dimensions in mm)
3.20
0.54
1.06
1.08
1.06
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Package information Table 7. SOD-523 dimensions
BAT41 Series
Dimensions
E 0.15 M C A B E1 B
Ref.
Millimeters Min. Typ. 0.60 1.60 1.20 0.80 Max. 0.70 1.70 1.30 0.90 0.35 0.20 0.20 0.25 0.20 Min.
Inches Typ. Max.
2xb
D
A E
0.50 1.50 1.10 0.70 0.25 0.07 0.15 0.10
0.020 0.024 0.028 0.059 0.063 0.067 0.043 0.047 0.051 0.028 0.031 0.035 0.010 0.003 0.014 0.008
0.20 M C A B A R0.1 8
E1 D
A
SEATING PLANE
c C L 7
b c
L1
L L1
0.006 0.008 0.010 0.004 0.008
Figure 14. SOD-523 footprint (dimensions in mm)
0.7 0.3 2
8/12
BAT41 Series Table 8. SOT-323 dimensions
Package information
Dimensions Ref.
A E
Millimeters Min. Typ. Max. 1.1 0.1 0.4 0.26 2.0 1.25 0.65 1.8 0.1 0 2.1 0.2 2.4 0.3 30 0.071 0.004 0 2.2 1.35 Min. 0.031 0.0 0.010 0.004 0.071 0.045
Inches Typ. Max. 0.043 0.004 0.016 0.010 0.079 0.049 0.026 0.083 0.008 0.094 0.012 30 0.086 0.053
A
e b
D
0.8 0.0 0.25 0.1 1.8 1.15
A1 b c
A1
D E
c H
e
L
H L q
Figure 15. SOT-323 footprint (dimensions in mm)
0.95
1.0
2.9
0.8
0.50
9/12
Package information Table 9. SOT-666 dimensions
BAT41 Series
Dimensions
b1 L1
Ref.
Millimeters Min. Typ. Max. Min.
Inches Typ. Max. 0.024 0.007 0.013
L3 b
A A3 b
D E1
0.45 0.08 0.17 0.19 1.50 1.50 1.10 0.50 0.19 0.10 0.10 0.27
0.60 0.018 0.18 0.003 0.34 0.007
b1 D
0.34 0.007 0.011 0.013 1.70 0.059 1.70 0.059 1.30 0.043 0.020 0.007 0.30 0.004 0.004 0.012 0.067 0.067 0.051
A
E
L2 E A3
E1 e L1 L2
e
L3
Figure 16. SOT-666 footprint (dimensions in mm)
0.50
0.62
2.60
0.99
0.30
In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
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BAT41 Series
Ordering information
4
Ordering information
Part Number BAT41ZFILM BAT41WFILM BAT41SWFILM BAT41CWFILM BAT41AWFILM BAT41JFILM BAT41KFILM BAT41-09P6FILM BAT41-07P6FILM Marking Z41 B41 S41 C41 A41 41 41 Q1 P1 Package SOD-123 Single SOT-323 Single SOT-323 Series SOT-323 Common cathode SOT-323 Common anode SOD-323 Single SOD-523 Single SOT-666 Opposite SOT-666 Parallel Weight 10 mg 6 mg 6 mg 6 mg 6 mg 5 mg 1.4 mg 2.9 mg 2.9 mg Base qty 3000 3000 3000 3000 3000 3000 3000 3000 3000 Delivery mode Tape and reel Tape and reel Tape and reel Tape and reel Tape and reel Tape and reel Tape and reel Tape and reel Tape and reel
5
Revision history
Date 08-Aug-2006 Revision 1 Initial release. Description of Changes
11/12
BAT41 Series
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