BYW81P-200
BYW81PI-200
October 1999 - Ed: 2D
HIGH EFFICIENCY FAST RECOVERY RECTIFIER DIODES
TO-220AC
(Plastic)
BYW81P-200
SUITED FOR SMPS
VERY LOW FORWARD LOSSES
NEGLIGIBLE SWITCHING LOSSES
HIGH SURGE CURRENT CAPABILITY
HIGH AVALANCHE ENERGY CAPABILITY
INSULATED VERSION :
Insulating voltage = 2500 V
RMS
Capacitance = 7 pF
DESCRIPTION
FEATURES
Single chip rectifier suited for switchmode power
supply and high frequency DC to DC converters.
Packaged in TO-220AC this device is intended for
use in low voltage, high frequency inverters, free
wheeling and polarity protection applications.
isolated
TO-220AC
(Plastic)
BYW81PI-200
Symbol
Parameter
Value
Unit
I
F(RMS)
RMS forward current
35
A
I
F(AV)
Average forward current
= 0.5
BYW81P
Tc=115
C
15
A
BYW81PI
Tc=90
C
15
I
FSM
Surge non repetitive forward current
tp=10ms
sinusoidal
200
A
Tstg
Tj
Storage and junction temperature range
- 40 to + 150
- 40 to + 150
C
C
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
RRM
Repetitive peak reverse voltage
200
V
K
A
K
A
1/6
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
I
R
*
T
j
= 25
C
V
R
= V
RRM
20
A
T
j
= 100
C
1.5
mA
V
F **
T
j
= 125
C
I
F
= 12 A
0.85
V
T
j
= 125
C
I
F
= 25 A
1.05
T
j
= 25
C
I
F
= 25 A
1.15
Pulse test : * tp = 5 ms, duty cycle < 2 %
** tp = 380
s, duty cycle < 2 %
To evaluate the conduction losses use the following equation :
P = 0.65 x I
F(AV)
+ 0.016 x I
F
2
(RMS)
ELECTRICAL CHARACTERISTICS
STATIC CHARACTERISTICS
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
trr
T
j
= 25
C
I
F
= 0.5A
I
R
= 1A
Irr = 0.25A
25
ns
I
F
= 1A
V
R
= 30V
dI
F
/dt = -50A/
s
40
tfr
T
j
= 25
C
I
F
= 1A
V
FR
= 1.1 x V
F
tr = 10 ns
15
ns
V
FP
T
j
= 25
C
I
F
= 1A
tr = 10 ns
2
V
RECOVERY CHARACTERISTICS
Symbol
Parameter
Value
Unit
Rth (j-c)
Junction to case
BYW81P
2.0
C/W
BYW81PI
3.5
THERMAL RESISTANCE
BYW81P-200 / BYW81PI-200
2/6
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
0
50
100
150
200
250
300
350
T
I
M
=tp/T
tp
IM(A)
P=10W
P=20W
P=30W
Fig.2 : Peak current versus form factor.
0.1
1
10
100 200
Tj= 125 C
o
IFM(A)
VFM(V)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
Fig.3 : Forward voltage drop versus forward
current (maximum values).
0.1
1.0
0.2
0.5
Zth(j-c) (tp.
)
K =
Rth(j-c)
= 0 . 5
= 0 . 2
= 0 .1
Singl e puls e
tp(s)
T
=tp/T
tp
1.0E-03
1.0E-02
1.0E-01
1. 0E+00
K
Fig.4 : Relative variation of thermal impedance
junction to case versus pulse duration.
0
2.5
5
7.5
10
12.5
15
17.5
20
0.0
2.5
5.0
7.5
10.0
12.5
15.0
17.5
20.0
=0.05
=0.1
=0.2
=0.5
T
=tp/T
tp
IF(av)(A)
PF(av)(W)
=1
Fig.1 : Average forward power dissipation versus
average forward current.
0.001
0.01
0.1
1
0
10
20
30
40
50
60
70
80
90
100
110
120
IM
t
=0.5
t(s)
IM(A)
Tc=25 C
o
Tc=60 C
o
Tc=90 C
o
Fig.6 : Non repetitive surge peak forward current
versus overload duration.
(BYW81PI)
0.001
0.01
0.1
1
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
IM
t
=0.5
t(s)
IM(A)
Tc=25 C
o
Tc=75 C
o
Tc=115
C
o
Fig.5 : Non repetitive surge peak forward current
versus overload duration.
(BYW81P)
BYW81P-200 / BYW81PI-200
3/6
0
20
40
60
80
100
120
140
160
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
T
=tp/T
tp
=0.5
F(av)(A)
I
o
Tamb( C)
Rth(j-a)=15
C/W
o
Rth(j-a)=Rth(j-c)
Fig.7
:
Average
current
versus
ambient
temperature.
(duty cycle : 0.5) (BYW81P)
0
20
40
60
80
100
120
140
160
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
T
=tp/T
tp
=0.5
F(av)(A)
I
o
Tamb( C)
Rth(j-a)=15
C/W
o
Rth(j-a)=Rth(j-c)
Fig.8
:
Average
current
versus
ambient
temperature.
(duty cycle : 0.5) (BYW81PI)
1
80
85
10
30
50
7 0
90
95
100
105
110
115
120
VR(V)
F=1Mhz Tj=25 C
o
C(pF)
Fig.9 : Junction capacitance versus reverse
voltage applied (Typical values).
1
10
20
40
60 80
0
10
20
30
40
50
60
QRR(nC)
90%CONFIDENCE
Tj=100 C
Tj=25 C
O
O
IF=IF(av)
dIF/dt(A/us)
Fig.10 : Recovery charges versus dI
F
/dt.
Tj(
C)
QRR ;IRM[Tj]/QRR ;IRM[Tj=125 C]
0
25
50
75
100
125
150
0.00
0.25
0.50
0.75
1.00
1.25
1.50
IRM
QRR
o
o
Fig.12 : Dynamic parameters versus junction
temperature.
1
10
0. 0
0. 5
1. 0
1. 5
2. 0
2. 5
3. 0
IRM(A)
dIF/dt(A/us)
20
40
60 80
90%CONFIDENCE
Tj=100 C
O
Tj=25 C
O
IF=IF(av)
Fig.11 : Peak reverse current versus dIF/dt.
BYW81P-200 / BYW81PI-200
4/6
Marking : Type number
Cooling method : C
Weight : 2.2 g
Recommended torque value : 0.8m.N
Maximum torque value : 1.0m.N
PACKAGE MECHANICAL DATA
TO-220AC (JEDEC outline)
Marking : Type number
Cooling method : C
Weight : 1.9 g
Recommended torque value : 0.8m.N
Maximum torque value : 1.0m.N
PACKAGE MECHANICAL DATA
TO-220AC (isolated)
A
C
D
E
M
L7
H2
I
L5
L6
L9
L4
G
F1
F
L2
REF.
DIMENSIONS
Millimeters
Inches
Min.
Max.
Min.
Max.
A
4.40
4.60
0.173
0.181
C
1.23
1.32
0.048
0.051
D
2.40
2.72
0.094
0.107
E
0.49
0.70
0.019
0.027
F
0.61
0.88
0.024
0.034
F1
1.14
1.70
0.044
0.066
G
4.95
5.15
0.194
0.202
H2
10.00
10.40
0.393
0.409
L2
16.40 typ.
0.645 typ.
L4
13.00
14.00
0.511
0.551
L5
2.65
2.95
0.104
0.116
L6
15.25
15.75
0.600
0.620
L7
6.20
6.60
0.244
0.259
L9
3.50
3.93
0.137
0.154
M
2.6 typ.
0.102 typ.
Diam. I
3.75
3.85
0.147
0.151
b1
l2
a1
e
F
L
B
I
A
C
b2
c1
c2
a2
REF.
DIMENSIONS
Millimeters
Inches
Min.
Max.
Min.
Max.
A
14.23
15.87
0.560
0.625
a1
4.50
0.177
a2
12.70
14.70
0.500
0.579
B
10.20
10.45
0.402
0.411
b1
0.64
0.96
0.025
0.038
b2
1.15
1.39
0.045
0.055
C
4.48
4.82
0.176
0.190
c1
0.35
0.65
0.020
0.026
c2
2.10
2.70
0.083
0.106
e
4.58
5.58
0.180
0.220
F
5.85
6.85
0.230
0.270
I
3.55
4.00
0.140
0.157
L
2.54
3.00
0.100
0.118
l2
1.45
1.75
0.057
0.069
BYW81P-200 / BYW81PI-200
5/6
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