JIANGSU CHANGJING ELECTRONICS TECHNOLOGY CO., LTD
TO-220BK Plastic-Encapsulate Thyristors
CT 312B
3Q TRIACs
MAIN CHARACTERISTICS
1 2A
IT(RMS)
VDRM/VRRM
CT312B-600S/C/B
600V
CT312B-800S/C/B
800V
1.55V
VTM
TO-220BK
1.MAIN TERMINAL 1
2.MAIN TERMINAL 2
3.GATE
FEATURES
NPNPN 5-layer Structure TRIACs
Mesa Glass Passivated Technology
Multi Layers Metal Electrodes
High Junction Temperature
Good Commutation Performance
High dV/dt and dI/dt
APPLICATIONS
MARKING
Heater Control
CT312B:Series Code
Motor Speed Controller
600S:Depends on VDRM
Mixer
and IGT
XXX:Internal Code
ABSOLUTE RATINGS ( Ta=25℃ unless otherwise noted )
Symbol
Parameter
Test condition
Value
Unit
CT312B-600S/C/B
600
V
CT312B-800S/C/B
800
V
Repetitive peak offstate voltage
Tj=25℃
IT(RMS)
RMS on-state current
TO-220BK(TC≤110℃),Fig. 1,2
12
A
ITSM
Non repetitive surge
peak on-state current
Full sine wave ,Tj(init)=25℃,
tp=20ms; Fig. 3,5
120
A
I2t value
tp=10ms
78
A2s
Critical rate of rise of
on-state current
IG=2*IGT, tr≤10ns, F=120HZ,
Tj=125℃
Peak gate current
tp=20µs, Tj=125℃
4
A
PG(AV)
Average gate power
Tj=125℃
1
W
TSTG
Storage temperature
-40~+150
Operating junction
temperature
-40~+125
VDRM/ VRRM
I2t
dIT/dt
IGM
Tj
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1
Ⅰ-Ⅱ-Ⅲ
Ⅳ
50
n/a
A/μs
℃
Rev. - 1.0
ELECTRICAL CHARACTERISTICS (Ta=25℃ unless otherwise specified)
Test condition
Value
Unit
Symbol
Parameter
IGT
Gate trigger current
VD=12V,
R L =30Ω,
Ⅰ-Ⅱ-Ⅲ
Ⅳ
VGT
Gate trigger voltage
Tj=25℃,
Fig. 6
Ⅰ-Ⅱ-Ⅲ
VGD
Non-triggering gate
voltage
VD=VDRM, RL =3.3kΩ,
Tj=125℃
IH
Holding current
I T=500mA, Fig. 6
≤15
≤35
≤50
mA
IL
Latching current
IG=1.2IGT,
Fig. 6
Ⅰ-Ⅲ
≤25
≤50
≤70
mA
Ⅱ
≤30
≤60
≤80
mA
dVD/dt
Critical rate of rise
of off-state
VD=67%VDRM, Gate
Open Tj=125℃
≥40
≥500
≥1000
V/μs
VTM
On-state Voltage
ITM=17A,tp=380μs ,
Fig. 4
IDRM / IRRM
Repetitive peak offstate current
S
C
B
≤10
≤35
≤50
n/a
n/a
n/a
mA
≤1.3
V
≥0.2
V
≤1.55
V
VD=VDRM/VRRM, Tj=25℃
≤5
≤5
≤5
μA
VD=VDRM/VRRM,Tj=125℃
≤1
≤1
≤1
mA
THERMAL RESISTANCES
Symbol
Parameter
Value
Unit
Rth (j-c)
Junction to case (AC)
TO-220BK
1.4
℃/W
Rth (j-a)
Junction to ambient
TO-220BK
60
℃/W
PART NUMBER
CT 3
12
B
-600 C
B:IGT1-3≤50mA
C:IGT1-3≤35mA
S:IGT1-3≤10mA
TRIACs
3 Quadrant
Repetitive peak off-state voltage
600:≥ 600V
IT(RMS)=12A
800:≥ 800V
Package Type
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2
Rev. - 1.0
CHARACTERISTICS CURVES
FIG.1: Maximum power dissipation versus RMS
on-state current (full cycle)
FIG.2: RMS on-state current versus case temperature
(full cycle)
P(W)
I T(RMS) (A)
16
12
14
12
10
8
8
6
4
4
2
0
0
2
4
6
8
0
-50
10
12
I T(RMS) (A)
0
FIG.3: Surge peak on-state current versus number of cycles
50
100
Tc
150
)
FIG.4: On-state characteristics (maximum values)
I TMS (A)
I TM (A)
100
140
120
Tj=125ºC
100
80
10
60
40
Tj=25ºC
20
0
1
0
10
100
1000
Number of cycles
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V TM (V)
FIG.6: Relative variations of gate trigger current, holding
current and latching current versus junction
temperature (typical values)
)
FIG.5: Non-repetitive surge peak on-state current for
a sinusoidal pulse with width tp < 10ms
2.5
I GT,I H,I L(T) / I GT,I H,I L(T=25
I TMS (A)
1000
2.0
IGT
1.5
100
1.0
IH&IL
0.5
10
0.01
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0.1
1
0.0
-40
10
tp(ms)
-20
0
20
40
60
80
100
120
140
Tj
3
)
Rev. - 1.0
B
Symbol
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Dimensions In Millimeters
Dimensions In Inches
Min
Max
Min
Max
A
9.8
10.4
0.385
0.409
B
2.65
3.1
0.104
0.122
C
2.8
4.2
0.110
0.165
D
0.7
0.92
0.027
0.036
E
3.75
3.95
0.147
0.155
F
14.8
16.1
0.582
0.633
G
13.05
13.6
0.513
0.535
H
2.4
2.7
0.094
0.106
I
4.38
4.61
0.172
0.181
J
1.15
1.36
0.045
0.053
K
5.85
6.82
0.230
0.268
L
2.35
2.75
0.092
0.108
M
0.35
0.65
0.013
0.025
N
1.18
1.42
0.046
0.055
4
Rev. - 1.0
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