ABB Semiconductors AG
Key Parameters
V
RRM
=
2000 V
I
FAVM
=
2700 A
I
FSM
=
31.0 kA
V
F0
=
0.79 V
r
F
=
0.09 m
Doc. No. 5SYA 1127 - 01 Apr-98
Avalanche Rectifier Diode
5SDA 27F2002
Features
Optimized for line frequency rectifiers
Low on-state voltage, narrow V
F
-bands for parallel operation
Self protected against transient overvoltages
Guaranteed maximum avalanche power dissipation
Industry standard housing
Blocking
Part number
5SDA 27F2002
5SDA 27F1702
5SDA 27F1402
Condition
V
RRM
2000
1700
1400
f
= 50 Hz
t
P
= 10 ms
V
RSM
2200
1870
1540
t
P
= 10 ms
T
j
= 160C
I
RRM
50
mA
V
RRM
T
j
= 160C
P
RSM
140
kW
t
P
= 20 s
T
j
=
45C
100
kW
t
P
= 20 s
T
j
= 160C
Mechanical data
F
M
Mounting force
min.
20
kN
max.
24
kN
a
Acceleration
Device unclamped
Device clamped
50
200
m/s
2
m/s
2
m
Weight
0.5
kg
D
S
Surface creepage distance
30
mm
D
a
Air strike distance
20
mm
ABB Semiconductors AG
5SDA 27F2002
Doc. No. 5SYA 1127 - 01 Apr-98
ABB Semiconductors AG
Fabrikstrasse 3
CH-5600 Lenzburg, Switzerland
Telephone +41 (0)62 888 6419
Fax +41 (0)62 888 6306
On-state
I
FAVM
Max. average on-state current
2700 A
Half sine wave, T
C
= 85C
I
FRMS
Max. RMS on-state current
4240 A
I
FSM
Max. peak non-repetitive
31.0 kA
tp
=
10 ms
T
j
=
160C
surge current
33.5 kA
tp
=
8.3 ms
After surge:
I
2
t
Limiting load integral
4805
10
3
A
2
s
tp
=
10 ms
V
R
0V
4680
10
3
A
2
s
tp
=
8.3 ms
V
F0
Threshold voltage
0.79 V
I
F
= 2000 - 6000 A
T
j
=
160C
r
F
Slope resistance
0.09 m
V
F min
On-state voltage
1.05 V
I
F
=
4000 A
T
j
=
25C
V
F max
On-state voltage
1.20 V
Thermal
T
j
Storage and operating
-40...160C
junction temperature range
R
thJC
Thermal resistance
40 K/kW Anode side cooled
junction to case
40 K/kW Cathode side cooled
20 K/kW Double side cooled
R
thCH
Thermal resistance case to
10 K/kW Single side cooled
heat sink
5 K/kW Double side cooled
For a given case temperature T
c
at ambient temperature T
a
the maximum on-state current can be calculated as follows:
I
=
-V + (V )
4 * f * r * P
2 * f
r
FAVM
F0
F0
2
f
2
f
2
+
*
where
P =
T
- T
R
J max
C
thjc
or
P =
T
- T
R
J max
A
thja
Analytical function for transient thermal impedance:
Z
(t) =
R (1- e
)
thJC
i
-t /
i 1
4
i
=
i
1
2
3
4
R
(K/kW)
11.83
4.26
1.63
2.28
i
(s)
0.432
0.071
0.01
0.0054
t [s]
10
-3
10
-2
10
-1
10
0
10
1
2
3 4 5 6 7
2
3 4 5 6 7
2
3 4 5 5 6
2
3 4 5 6 7
0
4
8
12
16
20
24
F
m
= 20...24 kN
Double Side Cooling
Z
th
[K/kW]
I
FAVM
(A)
P (W)
V
F0
(V)
r
F
(
)
T
max
(C)
T
c
(C)
T
a
(C)
R
thja
(K/kW)
R
thJC
(K/kW)
f
2
=
1
for DC current
2.5
for half-sine wave
3.1
for 120el., sine
6
for 60 el., sine
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