BYT44
Vishay Telefunken
Ultra Fast Soft Recovery Rectifier
Features
D
D
D
D
Miniature axial leaded
Glass passivated
Hermetically sealed glass envelope
Low reverse current
Applications
95 10526
High frequency circuits
Freewheeling diodes in SMPS
Absolute Maximum Ratings
T
j
= 25
_
C
Parameter
Reverse voltage=
g
Repetitive peak reverse voltage
Peak forward surge current
Average forward current
Junction and storage
temperature range
Non repetitive reverse
avalanche energy
t
p
=8.3 ms, half sinewave
Lead length l = 10 mm,
T
L
= 25
°
C
Test Conditions
Type
BYT44A
BYT44B
BYT44C
BYT44D
Symbol
V
R
=
V
RRM
I
FSM
I
FAV
T
j
=T
stg
I
(BR)R
=1A
E
R
Value
50
100
150
200
30
1.5
–55...+175
20
Unit
V
A
A
°
C
mJ
Maximum Thermal Resistance
T
j
= 25
_
C
Parameter
Junction ambient
Test Conditions
Lead length l = 10 mm, T
L
= constant
on PC board with spacing 25mm
Symbol
R
thJA
hJA
Value
60
110
Unit
K/W
Document Number 86027
Rev. 5, 27-Sep-00
www.vishay.com
1 (4)
BYT44
Vishay Telefunken
Electrical Characteristics
T
j
= 25
_
C
Parameter
Forward voltage
Reverse current
Test Conditions
I
F
=1A
V
R
=V
RRM
V
R
=V
RRM
, T
j
=150
°
C
I
R
=100
m
A
I
F
=0.5A, I
R
=1A, i
R
=0.25A
BYT44A
BYT44B
BYT44C
BYT44D
Type
Symbol
V
F
I
R
50
100
150
200
25
Min
Typ
Max
1.1
5
150
Unit
V
m
A
Reverse breakdown
voltage
Reverse recovery time
V
(BR)R
t
rr
V
ns
Characteristics
(T
j
= 25
_
C unless otherwise specified)
R
thJA
– Therm. Resist. Junction / Ambient ( K/W )
120
100
80
60
l
40
20
0
0
5
10
15
T
L
=constant
20
25
30
16318
100.000
10.000
T
j
= 175°C
1.000
T
j
= 25°C
0.100
0.010
0.001
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
V
F
– Forward Voltage ( V )
l
96 12151
l – Lead Length ( mm )
Figure 1. Max. Thermal Resistance vs. Lead Length
1000
V
R
= V
RRM
I
R
– Reverse Current (
m
A )
I
FAV
– Average Forward Current ( A )
I
F
– Forward Current ( A)
Figure 3. Forward Current vs. Forward Voltage
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
R
thJA
=110K/W
PCB: d=25mm
V
R
= V
R RM
half sinewave
R
thJA
=60K/W
l=10mm
100
10
1
25
96 12150
50
75
100
125
150
175
16319
0
20
40
60
80 100 120 140 160 180
T
j
– Junction Temperature (
°C
)
T
amb
– Ambient Temperature (
°C
)
Figure 2. Max. Reverse Current vs. Junction Temperature
Figure 4. Max. Average Forward Current vs.
Ambient Temperature
www.vishay.com
2 (4)
Document Number 86027
Rev. 5, 27-Sep-00
BYT44
Vishay Telefunken
Ozone Depleting Substances Policy Statement
It is the policy of
Vishay Semiconductor GmbH
to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and operating
systems with respect to their impact on the health and safety of our employees and the public, as well as their
impact on the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as
ozone depleting substances ( ODSs ).
The Montreal Protocol ( 1987 ) and its London Amendments ( 1990 ) intend to severely restrict the use of ODSs and
forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban
on these substances.
Vishay Semiconductor GmbH
has been able to use its policy of continuous improvements to eliminate the use of
ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively
2 . Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency ( EPA ) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances ) respectively.
Vishay Semiconductor GmbH
can certify that our semiconductors are not manufactured with ozone depleting
substances and do not contain such substances.
We reserve the right to make changes to improve technical design and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each customer application
by the customer. Should the buyer use Vishay-Telefunken products for any unintended or unauthorized application, the
buyer shall indemnify Vishay-Telefunken against all claims, costs, damages, and expenses, arising out of, directly or
indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use.
Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423
www.vishay.com
4 (4)
Document Number 86027
Rev. 5, 27-Sep-00
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