Features
Hermetic glass-metal seal
International standard case TO-209AB (TO-93)
Typical Applications
DC motor controls
Controlled DC power supplies
AC controllers
I
T(AV)
180
A
@ T
C
80
C
I
T(RMS)
285
A
I
TSM
@
50Hz
3800
A
@ 60Hz
4000
A
I
2
t
@
50Hz
72
KA
2
s
@ 60Hz
66
KA
2
s
V
DRM
/V
RRM
400 to 1000
V
t
q
typical
100
s
T
J
- 40 to 125
C
Parameters
180/181RKI
Units
Major Ratings and Characteristics
case style
TO-209AB (TO-93)
180A
PHASE CONTROL THYRISTORS
Stud Version
180/181RKI SERIES
1
Bulletin I25153 rev. D 09/03
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180/181RKI Series
2
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Bulletin I25153 rev. D 09/03
Voltage
V
DRM
/V
RRM
, max. repetitive
V
RSM
, maximum non-
I
DRM
/I
RRM
max.
Type number
Code
peak and off-state voltage
repetitive peak voltage
@ T
J
= T
J
max.
V
V
mA
40
400
500
180/181RKI
80
800
900
30
100
1000
1100
ELECTRICAL SPECIFICATIONS
Voltage Ratings
I
T(AV)
Max. average on-state current
180
A180 conduction, half sine wave
@ Case temperature
80
C
I
T(RMS)
Max. RMS on-state current
285
DC @ 79C case temperature
I
TSM
Max. peak, one-cycle
3800
t = 10ms
No voltage
non-repetitive surge current
4000
A
t = 8.3ms
reapplied
3500
t = 10ms
100% V
RRM
3660
t = 8.3ms
reapplied
Sinusoidal half wave,
I
2
t
Maximum I
2
t for fusing
72
t = 10ms
No voltage
Initial T
J
= T
J
max.
66
t = 8.3ms
reapplied
61
t = 10ms
100% V
RRM
56
t = 8.3ms
reapplied
I
2
t
Maximum I
2
t for fusing
720
KA
2
s t = 0.1 to 10ms, no voltage reapplied
V
T(TO)1
Low level value of threshold
voltage
V
T(TO)
2
High level value of threshold
voltage
r
t1
Low level value of on-state
slope resistance
r
t2
High level value of on-state
slope resistance
V
TM
Max. on-state voltage
1.35
V
I
pk
= 570A, T
J
= T
J
max, t
p
= 10ms sine pulse
I
H
Maximum holding current
600
I
L
Typical latching current
1000
0.83
(16.7% x
x I
T(AV)
< I <
x I
T(AV)
), T
J
= T
J
max.
0.92
(16.7% x
x I
T(AV)
< I <
x I
T(AV)
), T
J
= T
J
max.
0.81
(I >
x I
T(AV)
),T
J
= T
J
max.
Parameter
180/181RKI
Units Conditions
0.89
(I >
x I
T(AV)
),T
J
= T
J
max.
On-state Conduction
KA
2
s
V
m
mAT
J
= 25C, anode supply 12V resistive load
di/dt
Max. non-repetitive rate of rise
Gate drive 20V, 20
, t
r
1s
of turned-on current
T
J
= T
J
max, anode voltage
80% V
DRM
Gate current 1A, di
g
/dt = 1A/s
V
d
= 0.67% V
DRM
,
T
J
= 25C
I
TM
= 50A, T
J
= T
J
max, di/dt
= 10A/s, V
R
= 100V
dv/dt
= 20V/s
Parameter
180/181RKI
Units Conditions
t
d
Typical delay time
1.0
Switching
t
q
Typical turn-off time
100
s
300
A/s
180/181RKI Series
3
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Bulletin I25153 rev. D 09/03
dv/dt Maximum critical rate of rise of
off-state voltage
I
RRM
Max. peak reverse and off-state
I
DRM
leakage current
Blocking
500
V/s
T
J
= T
J
max. linear to 80% rated V
DRM
Parameter
180/181RKI
Units Conditions
30
mAT
J
= T
J
max, rated V
DRM
/V
RRM
applied
P
GM
Maximum peak gate power
10
T
J
= T
J
max, t
p
5ms
P
G(AV)
Maximum average gate power
2.0
T
J
= T
J
max, f = 50Hz, d% = 50
I
GM
Max. peak positive gate current
3.0
AT
J
= T
J
max, t
p
5ms
+V
GM
Maximum peak positive
gate voltage
-V
GM
Maximum peak negative
gate voltage
I
GT
DC gate current required
T
J
= - 40C
to trigger
mAT
J
= 25C
T
J
= 125C
V
GT
DC gate voltage required
T
J
= - 40C
to trigger
V
T
J
= 25C
T
J
= 125C
I
GD
DC gate current not to trigger
10
mA
Parameter
180/181RKI
Units Conditions
20
5.0
Triggering
V
GD
DC gate voltage not to trigger
0.25
V
T
J
= T
J
max.
TYP.
MAX.
130
-
65
150
35
-
2.0
-
1.2
2.5
0.9
-
Max. gate current/ voltage not to
trigger is the max. value which
will not trigger any unit with rated
V
DRM
anode-to-cathode applied
Max. required gate trigger/ cur-
rent/ voltage are the lowest value
which will trigger all units 12V
anode-to-cathode applied
W
V
T
J
= T
J
max., t
p
5ms
T
J
Max. operating temperature range
-40 to 125
T
stg
Max. storage temperature range
-40 to 150
R
thJC
Max. thermal resistance,
junction to case
R
thCS
Max. thermal resistance,
case to heatsink
T
Mounting torque, 10%
31
(275)
24.5
(210)
wt
Approximate weight
280
g
Case style
TO - 209AB (TO-93)
See Outline Table
Parameter
180/181RKI
Units Conditions
0.15
DC operation
0.04
Mounting surface, smooth, flat and greased
Thermal and Mechanical Specification
C
K/W
Nm
(lbf-in)
Lubricated threads
Non lubricated threads
180/181RKI Series
4
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Bulletin I25153 rev. D 09/03
Outline Table
Fast-on Terminals
2
WHITE GATE
RED SHRINK
RED CATHODE
RED SILICON RUBBER
+I
2
10 (
8
.
2
6)
10
(
0
.
39)
C.S. 0.4mm
(0.0006 s.i.)
MA
X
.
82
(
3
.
23)
M
I
N
.
4.3 (0.17) DIA.
19 (0.75) MAX.
2
8
.
5
(
1
.
12)
M
AX.
16 (
0
.
63)
M
A
X
.
8.5 (0.33) DIA.
+
-
GLASS METAL SEAL
28.5 (1.12) MAX. DIA.
220 (8.66) 10 (0.39)
SW 32
C.S. 25mm 2
(0.039 s.i.)
FLEXIBLE LEAD
4 (0.16) MAX.
2
2
(
0
.8
6)
M
IN
.
35 (1.38) MAX.
3/4"-16UNF-2A
21 (
0
.
8
3)
WHITE SHRINK
9
.5
(
0.
37
)
M
IN
.
Case Style TO-209AB (TO-93)
All dimensions in millimeters (inches)
AMP. 280000-1
REF-250
Ordering Information Table
4
18
1
RKI 100
2
3
1
Device Code
1
-
I
T(AV)
rated average output current (rounded/10)
2
-
0 = Eyelet terminals (Gate and Auxiliary Cathode Leads)
1 = Fast - on terminals (Gate and Auxiliary Cathode Leads)
3
-
Thyristor
4
-
Voltage code: Code x 10 = V
RRM
(See Voltage Rating Table)
180
0.050
0.032
120
0.063
0.059
90
0.080
0.082
K/W
T
J
= T
J
max.
60
0.118
0.124
30
0.225
0.228
Conduction angle Sinusoidal conduction Rectangular conduction Units
Conditions
R
thJC
Conduction
(The following table shows the increment of thermal resistence R
thJC
when devices operate at different conduction angles than DC)
180/181RKI Series
5
www.irf.com
Bulletin I25153 rev. D 09/03
70
80
90
100
110
120
130
0
20 40 60 80 100 120 140 160 180 200
Ma
x
i
mu
m
A
l
l
o
wa
b
l
e Ca
s
e
T
e
mp
e
r
a
t
u
r
e
(
C
)
30
60
90
120 180
Average On-state Current (A)
Conduction Angle
181RKI Series
R (DC) = 0.15 K/W
thJC
70
80
90
100
110
120
130
0
50
100
150
200
250
300
DC
30
60
90
120
180
Average On-state Current (A)
Ma
x
i
mum
A
l
l
o
w
a
b
l
e
Ca
s
e
T
e
mp
er
atu
r
e
(
C
)
Conduction Period
181RKI Series
R (DC) = 0.15 K/W
thJC
Fig. 2 - Current Ratings Characteristics
Fig. 1 - Current Ratings Characteristics
0
25
50
75
100
125
Maximum Allowable Ambient Temperature (C)
R
=
0
.1
K
/W
-
D
e
lta
R
th
SA
0.2
K
/W
0.3
K
/W
0.6
K/W
0.8
K/W
1 K/
W
1.5 K/W
2 K/W
0
20
40
60
80
100
120
140
160
180
200
220
240
0
20
40
60
80 100 120 140 160 180
180
120
90
60
30
RMS Limit
Conduction Angle
Ma
x
i
mu
m A
v
e
r
a
g
e On
-s
t
a
t
e
P
o
we
r
L
o
s
s
(
W
)
Average On-state Current (A)
181RKI Series
T = 125C
J
0
25
50
75
100
125
Maximum Allowable Ambient Temperature (C)
R
=
0
.1
K
/W
- D
e
lta
R
th
SA
0.2
K
/W
0.3
K/
W
0.6 K
/W
0.8 K
/W
1 K/W
1.5 K/W
2 K/W
0
50
100
150
200
250
300
350
0
50
100
150
200
250
300
DC
180
120
90
60
30
RMS Limit
Conduction Period
M
a
x
i
m
u
m
Av
er
a
g
e O
n
-s
t
a
t
e
P
o
w
e
r
L
o
s
s
(
W
)
Average On-state Current (A)
181RKI Series
T = 125C
J
Fig. 4 - On-state Power Loss Characteristics
Fig. 3 - On-state Power Loss Characteristics
180/181RKI Series
180/181RKI Series
180/181RKI Series
180/181RKI Series
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