August 2001- Ed: 2B
1/4
BAR42FILM
BAR43/A/C/SFILM
SMALL SIGNAL SCHOTTKY DIODES
Symbol
Parameter
Value
Unit
V
RRM
Repetitive peak reverse voltage
30
V
I
F
Continuous forward current
100
mA
I
FSM
Surge non repetitive forward current
tp=10ms sinusoidal
750
mA
P
tot
Power dissipation (note 1)
T
amb
= 25
C
250
mW
T
stg
Maximum storage temperature range
- 65 to +150
C
Tj
Maximum operating junction temperature *
150
C
T
L
Maximum temperature for soldering during 10s
260
C
Note 1: for double diodes, Ptot is the total power dissipation of both diodes.
ABSOLUTE RATINGS (limiting values)
SOT-23
(Plastic)
* :
dPtot
dTj
Rth j
a
<
-
1
(
)
thermal runaway condition for a diode on its own heatsink
Symbol
Test conditions
Value
Unit
R
th(j-a)
Junction-ambient *
500
C/W
* Mounted on epoxy board with recommended pad layout.
THERMAL RESISTANCE
General purpose metal to silicon diodes featuring
very low turn-on voltage and fast switching.
DESCRIPTION
K
N.C.
A
A
K1
K2
K
A1
A2
A1
K2
K1
A2
BAR42FILM
BAR43FILM
BAR43AFILM
BAR43SFILM
BAR43CFILM
BAR42FILM BAR43/A/C/SFILM
2/4
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
V
BR
Tj = 25
C
I
R
= 100
A
30
V
V
F
*
Tj = 25
C
BAR 42FILM
I
F
= 10 mA
0.35
0.4
V
I
F
= 50 mA
0.5
0.65
BAR 43FILM
I
F
= 2 mA
0.26
0.33
I
F
= 15 mA
0.45
All
I
F
= 100 mA
1
I
R
**
Tj = 25
C
V
R
= 25V
500
nA
Tj = 100
C
100
A
STATIC CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
C
Tj = 25
C
V
R
= 1V
F = 1MHz
7
pF
trr
Tj = 25
C
I
F
= 10 mA
I
R
= 10 mA
I
rr
= 1mA
R
L
= 100
5
ns
*
Tj = 25
C
R
L
= 50 K
C
L
= 300 pF
F = 45Mhz
V
i
= 2V
for BAR 43
80
%
DYNAMIC CHARACTERISTICS
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50
0.00E+0
2.00E-3
4.00E-3
6.00E-3
8.00E-3
1.00E-2
1.20E-2
1.40E-2
1.60E-2
1.80E-2
2.00E-2
VFM(V)
IFM(A)
Tj=100
C
Tj=50
C
Tj=25
C
Fig. 1-1: Forward voltage drop versus forward
current (typical values, low level).
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1
1E-3
1E-2
1E-1
5E-1
VFM(V)
IFM(A)
Tj=100
C
Tj=50
C
Tj=25
C
Fig. 1-2: Forward voltage drop versus forward
current (typical values, high level).
Pulse test: * tp = 380
s,
< 2%
** tp = 5 ms,
<2%
* Detection effeciency
BAR42FILM BAR43/A/C/SFILM
3/4
0
5
10
15
20
25
30
1E-2
1E-1
1E+0
1E+1
1E+2
VR(V)
IR(
A)
Tj=50
C
Tj=25
C
Tj=100
C
Fig. 2: Reverse leakage current versus reverse
voltage applied (typical values).
0
25
50
75
100
125
150
1E-2
1E-1
1E+0
1E+1
1E+2
1E+3
1E+4
Tj(
C)
IR(
A)
VR=30V
Fig. 3: Reverse leakage current versus junction
temperature.
1
2
5
10
20
30
1
2
5
10
VR(V)
C(pF)
F=1MHz
Tj=25
C
Fig. 4: Junction capacitance versus reverse
voltage applied (typical values).
1E-3
1E-2
1E-1
1E+0
1E+1
1E+2
0.01
0.10
1.00
tp(s)
Zth(j-a)/Rth(j-a)
T
=tp/T
tp
Single pulse
= 0.1
= 0.2
= 0.5
Fig. 5: Relative variation of thermal impedance
junction to ambient versus pulse duration (epoxy
FR4 with recommendedpad layout, e(Cu)=35
m).
0
5
10
15
20
25
30
35
40
45
50
150
200
250
300
350
S(Cu) (mm )
Rth(j-a) (
C/W)
P=0.25W
Fig. 6: Thermal resistance junction to ambient
versus copper surface under each lead (Epoxy
printed circuit board FR4, copper thickness:
35
m).
BAR42FILM BAR43/A/C/SFILM
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PACKAGE MECHANICAL DATA
SOT-23 (Plastic)
B
E
S
e
e1
A
D
c
L
H
A1
REF.
DIMENSIONS
Millimeters
Inches
Min.
Max.
Min.
Max.
A
0.89
1.4
0.035
0.055
A1
0
0.1
0
0.004
B
0.3
0.51
0.012
0.02
c
0.085
0.18
0.003
0.007
D
2.75
3.04
0.108
0.12
e
0.85
1.05
0.033
0.041
e1
1.7
2.1
0.067
0.083
E
1.2
1.6
0.047
0.063
H
2.1
2.75
0.083
0.108
L
0.6 typ.
0.024 typ.
S
0.35
0.65
0.014
0.026
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of
use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to
change without notice. This publication supersedes and replaces all information previously supplied.
STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written
approval of STMicroelectronics.
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2001 STMicroelectronics - Printed in Italy - All rights reserved.
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0.9
0.035
0.9
0.035
1.9
0.075
mm
inch
2.35
0.92
1.1
0.043
1.1
0.043
1.45
0.037
0.9
0.035
FOOT PRINT DIMENSIONS
Ordering type
Marking
Package
Weight
Base qty
Delivery mode
BAR42FILM
D94
SOT-23
0.01g
3000
Tape & reel
BAR43FILM
D95
SOT-23
0.01g
3000
Tape & reel
BAR43AFILM
DB1
SOT-23
0.01g
3000
Tape & reel
BAR43CFILM
DB2
SOT-23
0.01g
3000
Tape & reel
BAR43SFILM
DA5
SOT-23
0.01g
3000
Tape & reel
Epoxy meets UL94,V0
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