BAR42FILM
BAR43FILM
®
SMALL SIGNAL SCHOTTKY DIODE
Table 1: Main Product Characteristics
IF(AV)
0.1 A
VRRM
30 V
Tj
150°C
VF(max)
0.33 and 0.40 V
A
K1
K
A
Nc
K2
K
BAR42FILM
BAR43FILM
BAR43AFILM
A1
K
FEATURES AND BENEFITS
■
■
■
■
A2
Very small conduction losses
Negligible switching losses
Low forward voltage drop
Surface mount device
A
K1
K2
A
K
A1
A2
A1
K2
A2
A2
BAR43CFILM
A1
K2
K1
K1
BAR43ASFILM
SOT23-3L
DESCRIPTION
Table 2: Order Codes
Part Number
BAR42FILM
BAR43FILM
BAR43AFILM
BAR43CFILM
BAR43SFILM
Genral purpose metal to silicon diodes featuring
very low turn-on voltage and fast switching.
Marking
D94
D95
DB1
DB2
DA5
Table 3: Absolute Ratings (limiting values)
Symbol
Parameter
Value
Unit
VRRM
Repetitive peak reverse voltage
30
V
IF(AV)
Continuous forward current
0.1
A
IFSM
Surge non repetitive forward current
tp = 10ms sinusoidal
0.75
A
Ptot
Power dissipation (note 1)
Tamb = 25°C
250
mW
Tstg
Maximum storage temperature range
-65 to + 150
°C
Tj
Maximum operating junction temperature *
150
°C
TL
Maximum temperature for soldering during 10s
260
°C
Note 1: for double diodes, Ptot is the total dissipation of both diodes.
1
dPtot
* : --------------- > -------------------------- thermal runaway condition for a diode on its own heatsink
dTj
Rth ( j – a )
April 2005
REV. 3
1/5
BAR42FILM / BAR43FILM
Table 4: Thermal Resistance
Symbol
Rth(j-a)
Parameter
Junction to ambient (*)
Value
Unit
500
°C/W
(*) Mounted on epoxy board with recommended pad layout.
Table 5: Static Electrical Characteristics
Symbol
Parameter
Tests conditions
VBR
Breakdown voltage
IR *
Reverse leakage current
Tj = 25°C
IR = 100µA
Tj = 25°C
Tj = 100°C
Tj = 25°C
Forward voltage drop
Typ
Max.
V
ALL
500
nA
100
µA
IF = 10mA
0.35
0.40
IF = 50mA
0.50
0.65
IF = 2mA
BAR43
Unit
30
VR = VRRM
BAR42
VF **
Min.
0.26
0.33
IF = 15mA
0.45
IF = 100mA
1
V
* tp = 5 ms, δ < 2%
** tp = 380 µs, δ < 2%
Pulse test:
Table 6: Dynamic Characteristics (Tj = 25°C)
Symbol
Parameter
Tests conditions
VR = 1V
Min.
C
Junction capacitance
Tj = 25°C
trr
Reverse recovery time
IF = 10 mA IR = 10 mA
Tj = 25°C Irr = 1 mA RL = 100 Ω
η
Detection efficiency
CL = 300 pF F = 45 MHz
Tj = 25°C Vi = 2 V RL = 50 Ω
Figure 1: Forward voltage drop versus forward
current (typical values, low level)
Typ.
F = 1 MHz
Max.
7
Unit
pF
5
ns
80
%
Figure 2: Forward voltage drop versus forward
current (typical values, high level)
IFM(A)
IFM(A)
5E-1
2.00E-2
1.80E-2
1.60E-2
Tj=100°C
1E-1
1.40E-2
Tj=100°C
1.20E-2
1.00E-2
8.00E-3
Tj=50°C
Tj=25°C
1E-2
Tj=50°C
6.00E-3
Tj=25°C
4.00E-3
2.00E-3
VFM(V)
VFM(V)
0.00E+0
1E-3
0.00
2/5
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
BAR42FILM / BAR43FILM
Figure 3: Reverse leakage current versus
reverse voltage applied (typical values)
Figure 4: Reverse leakage current versus
junction temperature
IR(µA)
IR(µA)
1E+2
1E+4
Tj=100°C
VR=30V
1E+3
1E+1
1E+2
1E+0
1E+1
Tj=50°C
1E+0
1E-1
Tj=25°C
1E-1
VR(V)
VR(V)
1E-2
0
5
10
1E-2
15
20
25
0
30
Figure 5: Junction capacitance versus reverse
voltage applied (typical values)
25
50
75
100
125
150
Figure 6: Relative variation of thermal
impedance junction to ambient versus pulse
duration (epoxy FR4 with recommended pad
layout, e(Cu)=35µm)
C(pF)
Zth(j-a)/Rth(j-a)
10
1.00
δ = 0.5
F=1MHz
Tj=25°C
δ = 0.2
5
δ = 0.1
0.10
2
T
Single pulse
δ=tp/T
tp(s)
VR(V)
tp
0.01
1
1
2
5
10
20
30
1E-3
1E-2
1E-1
1E+0
1E+1
1E+2
Figure 7: Thermal resistance junction to
ambient versus copper surface under each
lead (Epoxy printed circuit board FR4, copper
thickness: 35µm)
Rth(j-a)(°C/W)
350
P=0.25W
300
250
200
S(CU)(mm²)
150
0
5
10
15
20
25
30
35
40
45
50
3/5
BAR42FILM / BAR43FILM
Figure 8: SOT23-3L Package Mechanical Data
DIMENSIONS
Millimeters
Inches
Min.
Max.
Min.
Max.
0.89
1.4
0.035
0.055
0
0.1
0
0.004
0.3
0.51
0.012
0.02
0.085
0.18
0.003
0.007
2.75
3.04
0.108
0.12
0.85
1.05
0.033
0.041
1.7
2.1
0.067
0.083
1.2
1.6
0.047
0.063
2.1
2.75
0.083
0.108
0.6 typ.
0.024 typ.
0.35
0.65
0.014
0.026
A
REF.
E
e
B
D
e1
S
A1
L
c
H
A
A1
B
c
D
e
e1
E
H
L
S
Figure 9: Foot Print Dimensions (in millimeters)
0.95
0.61
1.26
0.73
3.25
Table 7: Ordering Information
■
Ordering type
Marking
BAR42FILM
D94
BAR43FILM
D95
BAR43AFILM
DB1
BAR43CFILM
DB2
BAR43SFILM
DA5
Package
Weight
Base qty
Delivery mode
SOT23-3L
0.01 g
3000
Tape & reel
Epoxy meets UL94, V0
Table 8: Revision History
4/5
Date
Revision
Aug-2001
2B
16-Apr-2005
3
Description of Changes
Last update.
Layout update. No content change.
BAR42FILM / BAR43FILM
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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
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