ISO9001 Certified
POWER COMPONENTS
>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 5-50 mA (Q1)
>V
DRM
/V
RMM
400, 600, 800, 1000V
G
A2
A1
TO-220AB Isolated
(CTA08)
TO-220AB Non-Isolated
(CTB08)
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/CTB08
8Amp - 400/600/800/1000V - TRIAC
Absolute Maximum Ratings
CONDITIONS SYMBOL RATING
RMS On-State Current (full sine wave) Tc = 110˚C TO-220AB IT(RMS) 8A
Tc = 100˚C TO-220AB Iso
Non Repetitive Surge Peak On-State Current F =50 Hz 80A
(Full Cycle, Tj Initial = 25˚C) F =60 Hz ITSM 84A
I2t Value for fusing tp = 10 ms I2t36A
2s
Critical rate of rise of on-state current
IG=2 x IGT, tr<100 ns, Tj = 125˚Cdi/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) TW SW CW BW
IGT MAX @ VD=12 V, RL= 30ΩNOTE 1 QI-II-III 5mA 10mA 35mA 50mA
VGT MAX @ VD=12 V, RL= 30ΩQI-II-III 1.3V 1.3V 1.3V 1.3V
VGD MIN @ VD=VDRM, RL= 3.3kΩTj = 125˚C QI-II-III 0.2V 0.2V 0.2V 0.2V
IHMAX @ IT= 500 mA NOTE 2 10mA 15mA 35mA 50mA
ILMAX @ IG= 1.2 IGT QI-III 10mA 25mA 50mA 70mA
ILMAX @ IG= 1.2 IGT Q-II 15mA 30mA 60mA 80mA
dv/dt MIN @ VD= 67%VDRM (gate open) NOTE 2 Tj = 125˚C 20V/µs 40V/µs 400V/µs 1000V/µs
(di/dt)c MIN @ (dv/dt)c = 0.1 V/ms NOTE 2 Tj = 125˚C 3.5A/ms 5.4A/ms
(di/dt)c MIN @ (dv/dt)c = 10 V/ms NOTE 2 Tj = 125˚C 1.5A/ms 2.8A/ms
(di/dt)c MIN without Snubber NOTE 2 Tj = 125˚C 4.5A/ms 7A/ms
STANDARD (4 Quadrants) C B
IGT MAX @ VD=12 V, RL= 30ΩNOTE 1 QI-II-III 25mA 50mA
IGT MAX @ VD=12 V, RL= 30ΩNOTE 1 QIV 50mA 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 25mA 50mA
ILMAX @ IG= 1.2 IGT QI-III-IV 40mA 50mA
ILMAX @ IG= 1.2 IGT Q-II 80mA 100mA
dv/dt MIN @ VD= 67%VDRM (gate open) NOTE 2 Tj = 125˚C 200V/µs 400V/µs
(dv/dt)c MIN @ (di/dt)c = 3.5 A/ms NOTE 2 Tj = 125˚C 5V/µs 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/CTB08
8Amp - 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. CrydomCT08_E2605.pdf
Static Characteristics
VTMAX @ ITM =11 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 50mΩ
IDRM MAX @ VDRM =VRRM Tj = 25˚C 5µA
IRRM MAX @ VDRM =VRRM Tj = 125˚C 1mA
Thermal Resistances
SYMBOL RATING
Junction to Case (AC) TO-220AB Rth(j-c) 1.6˚C/W
Junction to Case (AC) TO-220AB Isolated Rth(j-c) 2.5˚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
08: 8 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)
C: Standard (IGT =25mA)
CW: Alternistor/No Snubber (IGT =35mA)
SW: Logic Level (IGT =10mA)
TW: Logic Level (IGT =5mA)
CT CW
08
0
2
4
6
8
10
0123456789
IT(RMS) [A]
Fig. 1: Power dissipation versus RMS on-state current (full cycle).
P]W[
12
10
8
6
4
2
0
80 90 100 110 120 130
T
C
[˚C]
Fig. 2: RMS on-state current versus
case temperature (full cycle)
I)SMR(T ]A[
1.0
10.0
100.0
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
VTM [V]
Fig. 3: On-state current versus
on-state voltage (instantaneous values)
IMT ]A[
IMST ]A[
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
Part Number Selection
Part Number Voltage [Vpk] IGT [mA] Type Package
CTA/CTB08-xxxB 400, 600, 800, 1000 50mA Standard TO-220AB
CTA/CTB08-xxxBW 400, 600, 800, 1000 50mA Alternistor/No Snubber TO-220AB
CTA/CTB08-xxxC 400, 600, 800, 1000 25mA Standard TO-220AB
CTA/CTB08-xxxCW 400, 600, 800, 1000 35mA Alternistor/No Snubber TO-220AB
CTA/CTB08-xxxSW 400, 600, 800, 1000 10mA Logic Level TO-220AB
CTA/CTB08-xxxTW 400, 600, 800 5mA Logic Level TO-220AB
Part Number Designation
Approvals
UL - E72445
