DGS 9-025AS DGS 10-025A(S)
DGSK 20-025A(S)
Gallium Arsenide Schottky Rectifier
I
DC
= 12 A
V
RRM
= 250 V
C
Junction
= 18 pF
Type
Marking on product
A
Circuit
C
Package
A = Anode, C = Cathode , TAB = Cathode
DGS 9-025AS
9A250AS
Single
TO-252 AA
A
A
C (TAB)
DGS 10-025A
DGS 10-025AS
DGS 10-025A
DGS 10-025AS
A
C
TO-220 AC
TO-263 AB
C
A
A
A
C (TAB)
Single
C (TAB)
DGSK20-025A
DGSK20-025AS
DGSK20-025A
DGSK20-025AS
TO-220 AB
Common cathode
A
C
A
A
C
A
C (TAB)
A
A
TO-263 AB
C (TAB)
Symbol
V
RRM/RSM
I
FAV
I
FAV
I
FSM
T
VJ
T
stg
P
tot
M
d
Conditions
Maximum Ratings
250
V
A
A
A
°C
°C
W
Nm
Features
• Low forward voltage
• Very high switching speed
• Low junction capacity of GaAs
- low reverse current peak at turn off
• Soft turn off
• Temperature independent switching
behaviour
• High temperature operation capability
• Epoxy meets UL 94V-0
Applications
• MHz switched mode power supplies
(SMPs)
• Small size SMPs
• High frequency converters
• Resonant converters
T
C
= 25°C; DC
T
C
= 90°C; DC
T
VJ
= 45°C; t
p
= 10 ms (50 Hz), sine
12
9
20
-55...+175
-55...+150
T
C
= 25°C
mounting torque (TO-220)
34
0.4...0.6
Symbol
I
R
V
F
C
J
R
thJC
R
thCH
Weight
Pulse test:
Conditions
V
R
= V
RRM
;
V
R
= V
RRM
;
I
F
= 5 A;
I
F
= 5 A;
T
VJ
= 25°C
T
VJ
= 125°C
T
VJ
= 125°C
T
VJ
= 25°C
Characteristic Values
typ.
max.
1.3
1.3
1.3
1.2
18
4.4
1.5
mA
mA
V
V
pF
K/W
K/W
g
g
V
R
= 100 V; T
VJ
= 125°C
TO-220
TO-252
TO-220/263
Pulse Width = 5 ms, Duty Cycle < 2.0 %
0.5
0.3
2
Data according to IEC 60747 and per diode
unless otherwise specified
0435
IXYS reserves the right to change limits, test conditions and dimensions
© 2004 IXYS All rights reserved
1-3
DGS 9-025AS DGS 10-025A(S)
DGSK 20-025A(S)
20
10
A
I
F
1
100
C
J
200
pF
0,1
T
VJ
=
125°C
25°C
T
VJ
= 125°C
0,01
0,0
0,5
1,0
1,5
V
F
V 2,0
10
0,1
1
10
100 V 1000
V
R
Fig. 1 typ. forward characteristics
Fig. 2 typ. junction capacity
versus blocking voltage
10
K/W
1
Z
thJC
Single Pulse
TO-252
TO-220
0,1
0,01
DGS10-022/025A
0,00001
0,0001
0,001
0,01
0,1
1
t
s
10
Fig. 3 typ. thermal impedance junction to case
Note:
explanatory comparison of the basic operational behaviour of rectifier diodes and Gallium Arsenide
Schottky diodes:
conduction
forward characteristics
turn off characteristics
turn on characteristics
Rectifier Diode
by majority + minority carriers
V
F
(I
F
)
extraction of excess carriers
causes temperature dependant
reverse recovery (t
rr
, I
RM
, Q
rr
)
delayed saturation leads to V
FR
GaAs Schottky Diode
by majority carriers only
V
F
(I
F
), see Fig. 1
reverse current charges
junction capacity C
J
, see Fig. 2;
not temperature dependant
no turn on overvoltage peak
0435
IXYS reserves the right to change limits, test conditions and dimensions
© 2004 IXYS All rights reserved
2-3
DGS 9-025AS DGS 10-025A(S)
DGSK 20-025A(S)
Outlines TO-220
Dim.
A
B
C
D
E
F
G
H
J
K
M
N
Q
R
Millimeter
Min. Max.
12.70 13.97
14.73 16.00
9.91 10.66
3.54
4.08
5.85
6.85
2.54
3.18
1.15
1.65
2.79
5.84
0.64
1.01
2.54
BSC
4.32
4.82
1.14
1.39
0.38
0.56
2.29
2.79
Inches
Min. Max.
0.500 0.550
0.580 0.630
0.390 0.420
0.139 0.161
0.230 0.270
0.100 0.125
0.045 0.065
0.110 0.230
0.025 0.040
0.100
BSC
0.170 0.190
0.045 0.055
0.015 0.022
0.090 0.110
Outlines
TO-252
Dim.
A
A1
A2
b
b1
b2
c
c1
D
D1
E
E1
e
e1
H
L
L1
L2
L3
Millimeter
Min. Max.
2.19 2.38
0.89 1.14
0 0.13
0.64 0.89
0.76 1.14
5.21 5.46
0.46 0.58
0.46 0.58
5.97 6.22
4.32 5.21
6.35 6.73
4.32 5.21
2.28 BSC
4.57 BSC
9.40 10.42
0.51 1.02
0.64 1.02
0.89 1.27
2.54 2.92
Inches
Min.
Max.
0.086
0.094
0.035
0.045
0
0.005
0.025
0.035
0.030
0.045
0.205
0.215
0.018
0.023
0.018
0.023
0.235
0.245
0.170
0.205
0.250
0.265
0.170
0.205
0.090 BSC
0.180 BSC
0.370
0.410
0.020
0.040
0.025
0.040
0.035
0.050
0.100
0.115
1 Anode
2 NC
3 Anode
4 Cathode
Outline
TO-263
Dim.
A
A1
b
b2
c
c2
D
D1
E
E1
e
L
L1
L2
L3
L4
R
Millimeter
Min.
Max.
4.06
2.03
0.51
1.14
0.46
1.14
8.64
8.00
4.83
2.79
0.99
1.40
0.74
1.40
9.65
8.89
Inches
Min. Max.
.160
.080
.020
.045
.018
.045
.340
.315
.190
.110
.039
.055
.029
.055
.380
.350
9.65
10.29
6.22
8.13
2.54 BSC
14.61
2.29
1.02
1.27
0
0.46
15.88
2.79
1.40
1.78
0.20
0.74
.380
.405
.245
.320
.100 BSC
.575
.090
.040
.050
0
.018
.625
.110
.055
.070
.008
.029
0435
IXYS reserves the right to change limits, test conditions and dimensions
© 2004 IXYS All rights reserved
3-3
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