G
A2
A1
TO-220AB Isolated
(CTA24)
TO-220AB Non-Isolated
(CTB24)
G
A2
A2
A1
G
A2
A1
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.
4. Commutating dv/dt=50V.µsec (exponential to 200Vpk)
Absolute Maximum Ratings
CONDITIONS SYMBOL RATING
RMS On-State Current (full sine wave) Tc = 100˚C TO-220AB IT(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 ITSM 260A
I2t Value for fusing tp = 10 ms I2t 340A2s
Critical rate of rise of on-state current
IG=2 x IGT, tr<100 ns, Tj = 125˚CF =120 Hz di/dt 100A/µs
Peak Gate Current @ Tj = 125˚C tp = 20 µs IGM 4A
Average Gate Power Dissipation @ Tj = 125˚CP
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) VISO 2500 VRMS
Electrical Characteristics
ALTERNISTOR/NO SNUBBER AND LOGIC LEVEL (3 Quadrants) CW BW
IGT MAX @ VD=12 V, RL = 30ΩNOTE 1 QI-II-III 35mA 50mA
VGT MAX @ VD=12 V, RL = 30ΩQI-II-III 1.3V 1.3V
VGD MIN @ VD=VDRM, RL = 3.3kΩTj = 125˚C QI-II-III 0.2V 0.2V
IHMAX @ IT= 500 mA NOTE 2 50mA 75mA
IL MAX @ IG= 1.2 IGT QI-III 50mA 70mA
IL MAX @ IG= 1.2 IGT Q-II 80mA 100mA
dv/dt MIN @ VD= 67%VDRM (gate open) NOTE 2 Tj = 125˚C 500V/µs 1000V/µs
(di/dt)c MIN without Snubber NOTE 2 & 4 Tj = 125˚C 13A/ms 22A/ms
STANDARD (4 Quadrants) B
IGT MAX @ VD=12 V, RL = 30ΩNOTE 1 QI-II-III 50mA
IGT MAX @ VD=12 V, RL = 30ΩNOTE 1 QIV 100mA
VGT MAX @ VD=12 V, RL = 30ΩQ-All 1.3V
VGD MIN @ VD=VDRM, RL = 3.3kΩTj = 125˚C Q-All 0.2V
IHMAX @ IT= 500 mA NOTE 2 80mA
IL MAX @ IG= 1.2 IGT QI-III-IV 70mA
IL MAX @ IG= 1.2 IGT Q-II 160mA
dv/dt MIN @ VD= 67%VDRM (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
#
Suitable for General Purpose AC Switching
#
Altgernistor/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
Applications
• Phase Control
• Static Switching
• Light Dimming
• Motor Speed Control
• Kitchen Equipment
• Power Tools
• Solenoid Valve Controls:
- Dishwashers
- Washing Machines
CTA/CTB 24
24Amp - 400/600/800/1000V - TRIAC
ISO9001 CERTIFIED
Competitive part number cross-reference available at:
www.cynergy3.com
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
Static Characteristics
VTMAX @ ITM = 35 A, tp = 380µs NOTE 2 Tj = 25˚C 1.55V
Vto MAX @ Threshold Voltage NOTE 2 Tj = 125˚C 0.85V
RdMAX @ Dynamic Resistance NOTE 2 Tj = 125˚C 16mΩ
IDRM MAX @ VDRM = VRRM Tj = 25˚C 5µA
IRRM MAX @ VDRM = VRRM 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
24: 25 Amp
Packaging
Blank: Bulk
PT: Plastic Tube
Maximum
Blocking Voltage
400: 400Vpk
600: 600Vpk
800: 800Vpk
1000: 1000Vpk
Type
B: Standard (IGT=50mA)
BW: Alternistor/No Snubber (IGT=50mA)
CW: Alternistor/No Snubber (IGT=35mA)
CT CW
24
0369121518212427
IT(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
130120
T
C
[˚C]
Fig. 2: RMS on-state current versus
case temperature (full cycle)
I
T(RMS)
[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.
Non-Repetitive
Tj initial = 25˚C
I
TM
[A]
I
TSM
[A]
1.0
10.0
100.0
1000.0
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
11010090807060
Non-Isolated
Isolated
Part Number Selection
Part Number Voltage [Vpk] IGT [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
CTA/CTB 24
24Amp - 400/600/800/1000V - TRIAC
USA
Sales & Tech Support
(866) 258-5057
Email:
sales@cynergy3.com
Cynergy3 Components
2320 Paseo de las Americas, Suite 104
San Diego, CA 92154
EUROPE - UK
Telephone
+44 (0) 1202 897969
Fax
+44 (0) 1202 891918
Email:
sales@cynergy3.com
Cynergy3 Components Ltd.
7 Cobham Road
Ferndown Industrial Estate
Wimborne, Dorset BH21 7PE
ASIA - Thailand
Telephone
+66 (0)2 665 2517
Fax
+66 (0)2 665 2588
Cynergy 3 Components, Asia
18/8 Fico Place 12th Floor
Soi Sukhumvit 21 (Asoke)
Klongtoey Nua, Wattana
Bangkok, Thailand 10110
ISO9001 CERTIFIED
TM
Approvals
UL Recognized Component - E72445 (CTA Series)
© 2006 Cynergy3 components, All Rights Reserved.
Specifications are subject to change without prior notice. Cynergy3 components and the Cynergy3 components logo are trademarks of Cynergy3 components Corp.
