Owner manual

SBR is a registered trademark of Diodes Incorporated.
SBR20U40
Document number: DS30975 Rev. 7 - 2
3 of 5
www.diodes.com
August 2012
© Diodes Incorporated
SBR20U40CT
SBR20U40CTFP
0 5 10 15 20
Figure 1 Forward Power Dissipation
I , AVERAGE FORWARD CURRENT (A)
F(AV)
0
1
2
3
4
5
6
7
8
P
,
P
O
WE
R
DISSI
P
A
T
I
O
N
(W)
D
0 0.1 0.2 0.3 0.4 0.5
V , INSTANTANEOUS FORWARD VOLTAGE (V)
Figure 2 Typical Forward Characteristics
F
0.1
1
10
100
I, I
N
S
T
A
N
T
A
N
E
O
U
S
F
O
R
WA
R
D
C
U
R
R
E
N
T
(A)
F
0.01
0 5 10 15 20 25 30 35 40
Figure 3 Typical Reverse Characteristics
V , INSTANTANEOUS REVERSE VOLTAGE (V)
R
1
10
100
1,000
10,000
100,000
I , INS
T
AN
T
ANE
O
U
S
R
EVE
R
SE
C
U
R
R
EN
T
(µA)
R
Figure 4 Forward Current Derating Curve
25 50 75 100 125
T , AMBIENT TEMPERATURE ( C)
A
°
150
0
2
4
6
8
10
12
I, AVE
R
A
G
E
F
O
R
WA
R
D
C
U
R
R
E
N
T
(A)
F(AV)
Note 7
0 5 10 15 20 25 30 35 40 45 50
0
25
50
75
100
125
150
175
T
,DE
R
A
T
ED AMBIE
N
T
T
EM
P
E
R
A
T
U
R
E (
C
)
A
°
Figure 5 Operating Temperature Derating
V , DC REVERSE VOLTAGE (V)
R