SSAC18
Type
SSAC18GK08
SSAC18GK12
SSAC18GK14
SSAC18GK16
SSAC18GK18
VRRM
VDRM
V
800
1200
1400
1600
1800
VRSM
VDSM
V
900
1300
1500
1700
1900
Dimensions in mm (1mm=0.0394")
Symbol Test Conditions Maximum Ratings Unit
TVJ=TVJM
TC=85oC; 180o sine 40
18 A
TVJ=45oC t=10ms (50Hz), sine
VR=0 t=8.3ms (60Hz), sine
TVJ=TVJM t=10ms(50Hz), sine
VR=0 t=8.3ms(60Hz), sine
400
420
350
370
A
ITSM, IFSM
TVJ=45oC t=10ms (50Hz), sine
VR=0 t=8.3ms (60Hz), sine
TVJ=TVJM t=10ms(50Hz), sine
VR=0 t=8.3ms(60Hz), sine
800
730
600
570
A2s
i2dt
(di/dt)cr
150
500 A/us
(dv/dt)cr TVJ=TVJM; VDR=2/3VDRM
RGK= ; method 1 (linear voltage rise) 1000 V/us
PGM TVJ=TVJM tp=30us
IT=ITAVM tp=300us 10
5W
PGAV 0.5 W
ITRMS, IFRMS
ITAVM, IFAVM
oC
TVJ
TVJM
Tstg
-40...+125
125
-40...+125
VISOL 50/60Hz, RMS t=1min
IISOL<1mA t=1s 3000
3600 V~
MdMounting torque (M5)
Terminal connection torque (M5)
_
2.5-4.0/22-35
2.5-4.0/22-35 Nm/lb.in.
Weight 90 g
TVJ=TVJM repetitive, IT=45A
f=50Hz, tp=200us
VD=2/3VDRM
IG=0.45A non repetitive, IT=ITAVM
diG/dt=0.45A/us
VRGM 10 V
Typical including screws
Solid State AC Controller(Anti-Parallel Thyristor-Thyristor Modules)
SSAC18
Symbol Test Conditions Characteristic Values Unit
V
VT, VFIT, IF=80A; TVJ=25oC 2.05
VTO For power-loss calculations only (TVJ=125oC) 0.85 V
rT18 m
VD=6V; TVJ=25oC
TVJ=-40oC
VGT 1.5
1.6 V
VD=6V; TVJ=25oC
TVJ=-40oC
IGT 100
200 mA
VGD TVJ=TVJM; VD=2/3VDRM 0.2 V
IGD 10 mA
IHTVJ=25oC; VD=6V; RGK= 200 mA
TVJ=25oC; tp=10us; VD=6V
IG=0.45A; diG/dt=0.45A/us 450 mAIL
per thyristor/diode; DC current
per module
RthJC 1.3
0.65 K/W
per thyristor/diode; DC current
per module
RthJK 1.5
0.75 K/W
dSCreeping distance on surface 12.7 mm
dAStrike distance through air 9.6 mm
aMaximum allowable acceleration 50 m/s2
IRRM, IDRM TVJ=TVJM; VR=VRRM; VD=VDRM 3 mA
TVJ=25oC; VD=1/2VDRM
IG=0.45A; diG/dt=0.45A/us
tgd 2us
TVJ=TVJM; IT=20A; tp=200us; -di/dt=10A/us typ.
VR=100V; dv/dt=20V/us; VD=2/3VDRM
tq150 us
uC
QSTVJ=TVJM; IT, IF=25A; -di/dt=0.64A/us 50
IRM 6 A
ADVANTAGES
* Space and weight savings
* Simple mounting with two screws
* Improved temperature and power
cycling
* Reduced protection circuits
APPLICATIONS
* DC motor control
* Softstart AC motor controller
* Light, heat and temperature
control
Solid State AC Controller(Anti-Parallel Thyristor-Thyristor Modules)
FEATURES
* International standard package
* Copper Base Plate with Inter-DCB
* Planar passivated chips
* Isolation voltage 3600 V~
SSAC18
Fig. 3 Power dissipation versus on-state current and ambient temperature
(per thyristor)
Fig. 5 Three phase rectifier bridge: Power dissipation versus direct output current
and ambient temperature
10 100 1000
1
10
100
1000
mA
IG
s
tgd
Limit
typ.
TVJ = 25 C
100101102103104
0.1
1
10
IG
VG
mA
1: IGT, TVJ = 125 C
2: IGT, TVJ = 25 C
3: IGT, TVJ = -40 C
V
4: PGAV = 0.5 W
5: PGM = 5 W
6: PGM = 10 W
IGD, TVJ = 125 C
3
4
2
156
Fig. 4 Gate trigger characteristics
Fig. 6 Gate trigger delay time
Fig. 1 Surge overload current
ITSM: Crest value, t: duration Fig. 2 i2dt versus time (1-10 ms) Fig. 2a Maximum forward current
at case temperature
Solid State AC Controller(Anti-Parallel Thyristor-Thyristor Modules)
3 x SSAC18
SSAC18
Fig. 7 Three phase AC-controller:
Power dissipation versus RMS
output current and ambient
temperature
Fig. 8 Transient thermal impedance
junction to case (per thyristor)
RthJC for various conduction angles d:
d RthJC (K/W)
DC 1.3
180oC1.35
120oC1.39
60oC1.42
30oC1.45
Constants for ZthJC calculation:
iR
thi (K/W) ti (s)
1 0.018 0.0033
2 0.041 0.0216
3 1.241 0.191
Fig. 9 Transient thermal impedance
junction to heatsink (per thyristor)
RthJK for various conduction angles d:
d RthJK (K/W)
DC 1.5
180oC1.55
120oC1.59
60oC1.62
30oC1.65
Constants for ZthJK calculation:
iR
thi (K/W) ti (s)
1 0.018 0.0033
2 0.041 0.0216
3 1.241 0.191
4 0.2 0.46
Solid State AC Controller(Anti-Parallel Thyristor-Thyristor Modules)
3 x SSAC18
SSAC18
SSAC18
