© 2008 IXYS All rights reserved 1 - 2
IXYS reserves the right to change limits, Conditions and dimensions. 20080317a
DSSK 28-0045BS
Symbol Conditions Maximum Ratings
IFRMS 35 A
IFAV TC = 135°C; rectangular, d = 0.5 15 A
IFAV TC = 135°C; rectangular, d = 0.5; per device 30 A
IFSM TVJ = 45°C; tp = 10 ms (50 Hz), sine 320 A
EAS IAS = 15 A; L = 180 µH; TVJ = 25°C; non repetitive 32 mJ
IAR VA =1.5·VRRM typ.; f=10 kHz; repetitive 1.5 A
(dv/dt)cr 1000 V/µs
TVJ -55...+150 °C
TVJM 150 °C
Tstg -55...+150 °C
Ptot TC = 25°C 90 W
Mdmounting torque (Version B only) 0.4...0.6 Nm
Weight typical 2 g
IFAV = 2x15 A
VRRM =45V
VF= 0.43 V
VRSM VRRM Type
V V
45 45 DSSK 28-0045BS
Symbol Conditions Characteristic Values
typ. max.
IR VR= VRRM;T
VJ = 25°C 20 mA
VR= VRRM;T
VJ = 100°C 100 mA
VFIF = 15 A; TVJ = 125°C 0.43 V
IF = 15 A; TVJ = 25°C 0.48 V
IF = 30 A; TVJ = 125°C 0.60 V
RthJC 1.4 K/W
RthCH 0.25 K/W
Pulse test: Pulse Width = 5 ms, Duty Cycle < 2.0%
Data according to IEC 60747 and per diode unless otherwise specified.
Power Schottky Rectifier
with common cathode
Features
• International standard package
• Very low VF
• Extremely low switching losses
• Low IRM-values
• Epoxy meets UL 94V-0
Applications
• Rectifiers in switch mode power
supplies (SMPS)
• Free wheeling diode in low voltage
converters
Advantages
• High reliability circuit operation
• Low voltage peaks for reduced
protection circuits
• Low noise switching
• Low losses
Dimensions see Outlines.pdf
ACA
A = Anode, C = Cathode , TAB = Cathode
A
A
C (TAB)
TO-263 AB
© 2008 IXYS All rights reserved 2 - 2
IXYS reserves the right to change limits, Conditions and dimensions. 20080317a
DSSK 28-0045BS
Fig. 3 Typ. junction capacitance CT
versus reverse voltage VR
Fig. 2 Typ. value of reverse current IR
versus reverse voltage VR
Fig. 1 Maximum forward voltage
drop characteristics
Fig. 4 Average forward current IF(AV)
versus case temperature TC
Fig. 5 Forward power loss
characteristics
Fig. 6 Transient thermal impedance junction to case at various duty cycles Note: All curves are per diode
0.0 0.2 0.4 0.6 0.8
1
10
100
0 1020304050
0.01
0.1
1
10
100
1000
515250 102030
0
5
10
15
20
25
0.0001 0.001 0.01 0.1 1
0.01
0.1
1
10
0 50 100 150 200
0
10
20
30
40
IF(AV)
TC
C
IF(AV)
ts
K/W
10 100 1000 10000
100
1000
10000
IFSM
tP
A
0 1020304050
100
1000
10000
CT
IR
IF
A
VFVRVR
V
pF
V
mA
A
P(AV)
W
ZthJC
V
A
µs
0.08
DC
25°C
50°C
75°C
100°C
125°C
TVJ= 25°C
d = 0.5 d =
DC
0.5
0.33
0.25
0.17
0.08
Single Pulse
0.17
0.25
0.33
D = 0.5
TVJ =
150°C
125°C
25°C
TVJ=150°C
DSS K28-0045B
0
