© 2004 IXYS All rights reserved 1 - 3
435
DGS 9-025AS DGS 10-025A(S)
DGSK 20-025A(S)
IXYS reserves the right to change limits, test conditions and dimensions
Type Marking on product Circuit Package
DGS 9-025AS 9A250AS
DGS 10-025A DGS 10-025A
DGS 10-025AS DGS 10-025AS
DGSK20-025A DGSK20-025A
DGSK20-025AS DGSK20-025AS
A = Anode, C = Cathode , TAB = Cathode
A
TO-252 AA AC (TAB)
IDC = 12 A
VRRM = 250 V
CJunction = 18 pF
Gallium Arsenide Schottky Rectifier
Single
Common cathode
AC
ACA
AC
Single
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
A
A
TO-263 AB C (TAB)
A
A
TO-263 AB C (TAB)
TO-220 AB A
C
A
C (TAB)
C
TO-220 AC
A
C (TAB)
Symbol Conditions Maximum Ratings
VRRM/RSM 250 V
IFAV TC = 25°C; DC 12 A
IFAV TC = 90°C; DC 9 A
IFSM TVJ = 45°C; tp = 10 ms (50 Hz), sine 20 A
TVJ -55...+175 °C
Tstg -55...+150 °C
Ptot TC = 25°C34W
Mdmounting torque (TO-220) 0.4...0.6 Nm
Pulse test: Pulse Width = 5 ms, Duty Cycle < 2.0 %
Data according to IEC 60747 and per diode
unless otherwise specified
Symbol Conditions Characteristic Values
typ. max.
IR
VR = VRRM;T
VJ = 25°C 1.3 mA
VR = VRRM;T
VJ = 125°C 1.3 mA
VFIF = 5 A; TVJ = 125°C 1.3 V
IF = 5 A; TVJ = 25°C 1.2 1.5 V
CJVR = 100 V; TVJ = 125°C 18 pF
RthJC 4.4 K/W
RthCH TO-220 0.5 K/W
Weight TO-252 0.3 g
TO-220/263 2 g
© 2004 IXYS All rights reserved 2 - 3
435
DGS 9-025AS DGS 10-025A(S)
DGSK 20-025A(S)
IXYS reserves the right to change limits, test conditions and dimensions
0,0 0,5 1,0 1,5 2,0
0,01
0,1
1
10
0,00001 0,0001 0,001 0,01 0,1 1 10
0,01
0,1
1
10
t
s
K/W
0,1 1 10 100 1000
10
100
CJ
IF
A
VFVR
V
pF
V
ZthJC
TVJ =
125°C
25°C
TVJ = 125°C
200
20
Single Pulse
DGS10-022/025A
TO-220
TO-252
Fig. 1 typ. forward characteristics Fig. 2 typ. junction capacity
versus blocking voltage
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
by majority + minority carriers
VF (IF)
extraction of excess carriers
causes temperature dependant
reverse recovery (trr, IRM, Qrr)
delayed saturation leads to VFR
Rectifier Diode by majority carriers only
VF (IF), see Fig. 1
reverse current charges
junction capacity CJ, see Fig. 2;
not temperature dependant
no turn on overvoltage peak
GaAs Schottky Diode
© 2004 IXYS All rights reserved 3 - 3
435
DGS 9-025AS DGS 10-025A(S)
DGSK 20-025A(S)
IXYS reserves the right to change limits, test conditions and dimensions
Outlines TO-252
1 Anode
2 NC
3 Anode
4 Cathode
Outline TO-263
Outlines TO-220
Dim. Millimeter Inches
Min. Max. Min. Max.
A 12.70 13.97 0.500 0.550
B 14.73 16.00 0.580 0.630
C 9.91 10.66 0.390 0.420
D 3.54 4.08 0.139 0.161
E 5.85 6.85 0.230 0.270
F 2.54 3.18 0.100 0.125
G 1.15 1.65 0.045 0.065
H 2.79 5.84 0.110 0.230
J 0.64 1.01 0.025 0.040
K 2.54 BSC 0.100 BSC
M 4.32 4.82 0.170 0.190
N 1.14 1.39 0.045 0.055
Q 0.38 0.56 0.015 0.022
R 2.29 2.79 0.090 0.110
Dim. Millimeter Inches
Min. Max. Min. Max.
A 2.19 2.38 0.086 0.094
A1 0.89 1.14 0.035 0.045
A2 0 0.13 0 0.005
b 0.64 0.89 0.025 0.035
b1 0.76 1.14 0.030 0.045
b2 5.21 5.46 0.205 0.215
c 0.46 0.58 0.018 0.023
c1 0.46 0.58 0.018 0.023
D 5.97 6.22 0.235 0.245
D1 4.32 5.21 0.170 0.205
E 6.35 6.73 0.250 0.265
E1 4.32 5.21 0.170 0.205
e 2.28 BSC 0.090 BSC
e1 4.57 BSC 0.180 BSC
H 9.40 10.42 0.370 0.410
L 0.51 1.02 0.020 0.040
L1 0.64 1.02 0.025 0.040
L2 0.89 1.27 0.035 0.050
L3 2.54 2.92 0.100 0.115
Dim. Millimeter Inches
Min. Max. Min. Max.
A 4.06 4.83 .160 .190
A1 2.03 2.79 .080 .110
b 0.51 0.99 .020 .039
b2 1.14 1.40 .045 .055
c 0.46 0.74 .018 .029
c2 1.14 1.40 .045 .055
D 8.64 9.65 .340 .380
D1 8.00 8.89 .315 .350
E 9.65 10.29 .380 .405
E1 6.22 8.13 .245 .320
e 2.54 BSC .100 BSC
L 14.61 15.88 .575 .625
L1 2.29 2.79 .090 .110
L2 1.02 1.40 .040 .055
L3 1.27 1.78 .050 .070
L4 0 0.20 0 .008
R 0.46 0.74 .018 .029
