SD1553C..K Series
Bulletin I2091 rev. B 04/00
ELECTRICAL SPECIFICATIONS
Voltage Ratings
Type number
Voltage
Code
VRRM , maximum repetitive
peak reverse voltage
V
SD1553C..S20K
18
22
1800
2200
25 2500
18 1800
22 2200
SD1553C..S30K
25
28
30
2500
2800
3000
VRSM , maximum non-
repetitive peak rev. voltage
V
1900
2300
2600
1900
2300
2600
2900
3100
IRRM max.
@ TJ = TJ max.
mA
75
Forward Conduction
Parameter
I Max. average forward current
F(AV)
@ heatsink temperature
SD1553C..K
S20 S30
1825(865) 1650(790)
55 (85) 55 (85)
Units Conditions
A 180° conduction, half sine wave
°C Double side (single side) cooled
I Max. RMS forward current
F(RMS)
I Max. peak, one-cycle forward,
FSM
non-repetitive surge current
3100
25000
26180
21030
22010
2800
22000
23000
18500
19370
A @ 25°C heatsink temperature double side cooled
t = 10ms No voltage
t = 8.3ms reapplied
A
t = 10ms 100% VRRM
t = 8.3ms reapplied Sinusoidal half wave,
I2t Maximum I2t for fusing
3126
2854
2210
2018
2421
2210
1712
1563
KA2s
t = 10ms No voltage Initial TJ = TJ max.
t = 8.3ms reapplied
t = 10ms 100% V
RRM
t = 8.3ms reapplied
I2√t Maximum I2√t for fusing
VF(TO)1 Low level value of threshold
voltage
VF(TO)2 High level value of threshold
voltage
31260
1.15
1.29
24210 KA2√s t = 0.1 to 10ms, no voltage reapplied
1.31
1.45
(16.7% x π x IF(AV) < I < π x IF(AV)), TJ = TJ max.
V
(I > π x IF(AV)),TJ = TJ max.
rf1 Low level value of forward
slope resistance
rf2 High level value of forward
slope resistance
0.27
0.25
0.32
0.30
(16.7% x π x IF(AV) < I < π x IF(AV)), TJ = TJ max.
mΩ
(I
>
π
x
I ),T
F(AV) J
=
T
J
max.
VFM Max. forward voltage drop
2.23
2.60
V Ipk= 4000A, TJ = TJ max, tp = 10ms sinusoidal wave
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