ISO9001 Certified
P O W E R C O M P O N E N T S
>
Suitable for General Purpose AC Switching
>
Alternistor/No Snubber Versions
for Inductive Loads
>
Logic Level Available for use with
Microcontrollers and Low Level Devices
>
IGT Range 35-50 mA (Q1)
>
V
DRM
/V
RMM
400, 600, 800, 1000V
G
A2
A1
TO-220AB Isolated
(CTA24)
TO-220AB Non-Isolated
(CTB24)
G
A2
A2
A1
G
A2
A1
Applications
· Phase Control
· Static Switching
· Light Dimming
· Motor Speed Control
· Kitchen Equipment
· Power Tools
· Solenoid Valve Controls:
· Dishwashers
· Washing Machines
GENERAL NOTES
1. Minimum IGT is guaranted at 5% of IGT max.
2. For both polarities of A2 referenced to A1
3. All parameters at 25 degrees C unless otherwise specified.
CTA/CTB24
25Amp - 400/600/800/1000V -
TRIAC
Absolute Maximum Ratings
CONDITIONS
SYMBOL
RATING
RMS On-State Current (full sine wave)
Tc = 100°C
TO-220AB
I
T(RMS)
25A
Tc = 75°C
TO-220AB Iso
Non Repetitive Surge Peak On-State Current
F =50 Hz
250A
(Full Cycle, Tj Initial = 25°C)
F =60 Hz
I
TSM
260A
I
2
t Value for fusing
tp = 10 ms
I
2
t
340A
2
s
Critical rate of rise of on-state current
I
G
=2 x I
GT
, tr<100 ns, Tj = 125°C
di/dt
100A/µs
Peak Gate Current @ Tj = 125°C
tp = 20 µs
I
GM
4A
Average Gate Power Dissipation @ Tj = 125°C
P
G(AV)
1W
Storage Temperature Range
Tstg
-40 to +150°C
Operating Junction Temperature Range
Tj
-40 to +125°C
Isolation Voltage (CTA Series only)
V
ISO
2500 V
RMS
Electrical Characteristics
ALTERNISTOR/NO SNUBBER AND LOGIC LEVEL (3 Quadrants)
CW
BW
I
GT
MAX @ V
D
=12 V, R
L
= 30
NOTE 1
QI-II-III
35mA
50mA
V
GT
MAX @ V
D
=12 V, R
L
= 30
QI-II-III
1.3V
1.3V
V
GD
MIN @ V
D
=V
DRM
, R
L
= 3.3k
Tj = 125°C
QI-II-III
0.2V
0.2V
I
H
MAX @ I
T
= 500 mA
NOTE 2
50mA
75mA
I
L
MAX @ I
G
= 1.2 I
GT
QI-III
50mA
70mA
I
L
MAX @ I
G
= 1.2 I
GT
Q-II
80mA
100mA
dv/dt MIN @ V
D
= 67%V
DRM
(gate open)
NOTE 2
Tj = 125°C
500V/µs
1000V/µs
(di/dt)c MIN without Snubber
NOTE 2
Tj = 125°C
13A/ms
22A/ms
STANDARD (4 Quadrants)
B
I
GT
MAX @ V
D
=12 V, R
L
= 30
NOTE 1
QI-II-III
50mA
I
GT
MAX @ V
D
=12 V, R
L
= 30
NOTE 1
QIV
100mA
V
GT
MAX @ V
D
=12 V, R
L
= 30
Q-All
1.3V
V
GD
MIN @ V
D
=V
DRM
, R
L
= 3.3k
Tj = 125°C
Q-All
0.2V
I
H
MAX @ I
T
= 500 mA
NOTE 2
80mA
I
L
MAX @ I
G
= 1.2 I
GT
QI-III-IV
70mA
I
L
MAX @ I
G
= 1.2 I
GT
Q-II
160mA
dv/dt MIN @ V
D
= 67%V
DRM
(gate open)
NOTE 2
Tj = 125°C
500V/µs
(dv/dt)c MIN @ (di/dt)c = 13.3 A/ms
NOTE 2
Tj = 125°C
10V/µs
Dimensions
Millimeters
Inches
REF. Min.
Typ.
Max.
Min.
Typ.
Max.
A
15.24
15.75
0.6
0.62
B
3.23
0.127
C
12.78
13.79
0.503
0.543
D
9.96
10.36
0.392
0.408
E
0.69
0.94
0.027
0.037
F
1.22
1.32
0.048
0.052
G
4.62
4.83
0.182
0.19
H
0.46
0.61
0.018
0.024
I
2.49
2.84
0.098
0.112
J
2.39
2.69
0.094
0.106
K
6.48
6.88
0.255
0.271
L
3.78
3.89
0.149
0.153
M
15.49
16
16.51
0.61
0.63
0.65
N
2.59
2.9
0.102
0.114
O
0.99
1.55
0.039
0.061
P
0.99
1.55
0.039
0.061
Q
2.67
0.105
Weight: 2.3g (0.08 oz)
Q
D
M
G
F
C
O
I
P
E
B
A
K
N
L
J
H
CTA/CTB24
25Amp - 400/600/800/1000V - TRIAC
USA
Sales Support (877) 502-5500
Tech Support (877) 702-7700
Fax (619) 710-8540
Email: sales@crydom.com
Crydom Corp
2320 Paseo de las Americas, Suite 201
San Diego, CA 92154
EUROPE - UK
Telephone +44 (0) 1202 365070
Fax +44 (0) 1202 365090
Email: intsales@crydom.com
Crydom International Ltd.
7 Cobham Road
Ferndown Industrial Estate
Wimborne, Dorset BH21 7PE
Germany
Telephone +49 (0) 180 3000 506
ASIA - Thailand
Telephone +66 (0)2 665 2517
Fax +66 (0)2 665 2588
Crydom Asia
18/8 Fico Place 12th Floor
Soi Sukhumvit 21 (Asoke)
Klongtoey Nua, Wattana
Bangkok, Thailand 10110
ISO9001 Certified
© 2005 Crydom Corp, All Rights Reserved. Specifications are subject to change without prior notice. Crydom and the Crydom logo are trademarks of Crydom Corp. CrydomCT24_C2205.pdf
Static Characteristics
V
T
MAX @ I
TM
= 35 A, tp = 380µs
NOTE 2
Tj = 25°C
1.55V
Vto MAX @ Threshold Voltage
NOTE 2
Tj = 125°C
0.85V
Rd MAX @ Dynamic Resistance
NOTE 2
Tj = 125°C
16m
I
DRM
MAX @ V
DRM
= V
RRM
Tj = 25°C
5µA
I
RRM
MAX @ V
DRM
= V
RRM
Tj = 125°C
3mA
Thermal Resistances
SYMBOL
RATING
Junction to Case (AC)
TO-220AB
Rth(j-c)
0.8°C/W
Junction to Case (AC)
TO-220AB Isolated
Rth(j-c)
1.7°C/W
Junction to Ambient
TO-220AB
Rth(j-a)
60°C/W
Junction to Ambient
TO-220AB Isolated
Rth(j-a)
60°C/W
SERIES
Isolation Type
A: Isolated
B: Non-Isolated
Rated Current
Packaging
Blank: Bulk
PT: Plastic Tube
Maximum
Blocking Voltage
400: 400Vpk
600: 600Vpk
800: 800Vpk
1000: 1000Vpk
Type
B: Standard (I
GT
=50mA)
BW: Alternistor/No Snubber (I
GT
=50mA)
CW: Alternistor/No Snubber (I
GT
=35mA)
CT
CW
24
0
3
6
9
12
15
18
21
24
27
I
T(RMS)
[A]
Fig. 1: Power dissipation versus RMS on-state current (full cycle).
P
]
W
[
30
25
20
15
10
5
0
30
25
20
15
10
5
0
75
80
100
120
140
150
T
C
[°C]
Fig. 2: RMS on-state current versus
case temperature (full cycle)
I
)
S
M
R
(
T
]
A
[
V
TM
[V]
Fig. 3: On-state current versus
on-state voltage (instantaneous values)
160
100
10
80
120
60
50
40
30
20
250
1
10
100
1000
Number of Cycles
Fig. 4: Non-repetitive surge peak on-state
current versus number of cycles.
Isolated
Non-Isolated
Non-Repetitive
Tj initial = 25°C
I
M
T
]
A
[
I
M
S
T
]
A
[
1.0
10.0
100.0
1000.0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Part Number Selection
Part Number
Voltage [Vpk]
I
GT
[mA]
Type
Package
CTA/CTB24-xxxB
400, 600, 800, 1000
50mA
Standard
TO-220AB
CTA/CTB24-xxxBW
400, 600, 800, 1000
50mA
Alternistor/No Snubber TO-220AB
CTA/CTB24-xxxCW
400, 600, 800, 1000
35mA
Alternistor/No Snubber TO-220AB
Part Number Designation
Approvals
UL - E72445
24: 25 Amp
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