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 DSSK 20-0045B
Power Schottky Rectifier
with common cathode
IFAV = 2x10 A VRRM = 45 V VF = 0.45 V
VRSM V 45
VRRM V 45
Type
A C A
TO-220 AB
A C A
DSSK 20-0045B
C (TAB)
A = Anode, C = Cathode , TAB = Cathode
Symbol IFRMS IFAV IFAV IFSM EAS IAR (dv/dt)cr TVJ TVJM Tstg Ptot Md Weight
Conditions TC = 135C; rectangular, d = 0.5 TC = 135C; rectangular, d = 0.5; per device TVJ = 45C; tp = 10 ms (50 Hz), sine IAS = 13 A; L = 180 H; TVJ = 25C; non repetitive VA =1.5 * VRRM typ.; f=10 kHz; repetitive
Maximum Ratings 35 10 20 160 24 1.3 1000 -55...+150 150 -55...+150 A A A A mJ A V/ms C C C W Nm g
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
TC = 25C mounting torque typical
75 0.4...0.6 2
Advantages * High reliability circuit operation * Low voltage peaks for reduced protection circuits * Low noise switching * Low losses
Symbol IR VF
Conditions TVJ = 25C VR = VRRM TVJ = 100C VR = VRRM IF = 10 A; IF = 10 A; IF = 20 A; TVJ = 125C TVJ = 25C TVJ = 125 C
Characteristic Values typ. max. 5 50 0.45 0.51 0.70 1.7 0.5 mA mA V V V K/W K/W
Dimensions see outlines.pdf
RthJC RthCH
Pulse test: Pulse Width = 5 ms, Duty Cycle < 2.0 % Data according to IEC 60747 and per diode unless otherwise specified IXYS reserves the right to change limits, Conditions and dimensions.
047
(c) 2000 IXYS All rights reserved
1-2
DSSK 20-0045B
100 A IF
1000 mA IR 100
125C TVJ=150C
1000 pF CT
10 10
100C
1 75C
TVJ = 150C 125C 25C 50C
0.1
25C TVJ= 25C
1 0.0
0.2
0.4
0.6 VF
0.8 V 1.0
0.01 0 10 20 30 40 V 50 VR
100 0 10 20 30 VR 40 V
Fig. 1 Maximum forward voltage drop characteristics
40 A 30 IF(AV) 20 d=0.5 DC
Fig. 2 Typ. value of reverse current IR versus reverse voltage VR
40 W 30 P(AV) 20 d= DC 0.5 0.33 0.25 0.17 0.08 0 10 20 IF(AV) 30 A
Fig. 3 Typ. junction capacitance CT versus reverse voltage VR
A IFSM
10
10
0 0 40 80 TC 120 C 160
0 s tP
Fig. 4 Average forward current IF(AV) versus case temperature TC
Fig. 5 Forward power loss characteristics
1 K/W ZthJC
D=0.5 0.33 0.25 0.17 0.08
0.1
Single Pulse
0.01 0.0001
DSSK 20-0045B
0.001
0.01
0.1
1 t
s
10
Fig. 6 Transient thermal impedance junction to case at various duty cycles
Note: All curves are per diode
047
(c) 2000 IXYS All rights reserved
2-2


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