DGS20-025AS IXYS, DGS20-025AS Datasheet - Page 2

• Manufacturer Part Number: DGS20-025AS
• Description: DIODE SCHOTTKY GAAS 250V TO263AB
• Manufacturer: IXYS

Specifications of DGS20-025AS

• Voltage - Forward (vf) (max) @ If: 1.5V @ 7.5A
• Voltage - Dc Reverse (vr) (max): 250V
• Current - Average Rectified (io): 18A
• Current - Reverse Leakage @ Vr: 2mA @ 250V
• Diode Type: Schottky
• Speed: Fast Recovery =< 500ns, > 200mA (Io)
• Mounting Type: Surface Mount
• Package / Case: D²Pak, TO-263 (2 leads + tab)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Reverse Recovery Time (trr): -
• Capacitance @ Vr, F: -

IXYS reserves the right to change limits, test conditions and dimensions
© 2004 IXYS All rights reserved
Z
I
F
thJC
0,01
K/W
0,01
0,1
0,1
0,00001
30
10
10
A
1
Fig. 1 typ. forward characteristics
1
0,0
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
0,5
T
125°C
0,0001
25°C
VJ
1,0
=
1,5
Rectifier Diode
by majority + minority carriers
V
extraction of excess carriers
causes temperature dependant
reverse recovery (t
delayed saturation leads to V
V
F
F
0,001
(I
2,0
F
)
Single Pulse
V
TO-252
2,5
rr
, I
0,01
RM
C
, Q
J
100
300
pF
10
rr
DGS 19-025AS
)
0,1
FR
Fig. 2 typ. junction capacity
TO-220
by majority carriers only
V
reverse current charges
junction capacity C
not temperature dependant
no turn on overvoltage peak
0,1
GaAs Schottky Diode
F
versus blocking voltage
(I
1
F
), see Fig. 1
10
1
J
, see Fig. 2;
T
DGS 20-022/025A
VJ
V
100
t
DGS
DGSK 40-025A(S)
R
= 125°C
s
V
1000
10
20-025A(S)
2 - 3