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
CHTA/CHTB24
High Temperature 150C Series
25Amp - 400/600/800V - 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
2004 Crydom Corp, All Rights Reserved. Specifications are subject to change without prior notice. Crydom and the Crydom logo are trademarks of Crydom Corp. CrydomCHT24_L0205.pdf
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
Part Number Designation
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
0
5
10
15
20
25
30
35
IT(RMS) [A]
Fig. 1: Power dissipation versus RMS on-state current (full cycle).
P
]
W[
0
5
10
15
20
25
30
0
5
10
15
20
25
30
60
70
80
90
100
110
120
130
140
150
160
TC [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)
I
M
T
]
A[
I
M
S
T
]
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 = 25C
1.0
10.0
100.0
1000.0
0.51
1.52
2.5
3
3.54
4.55
Approvals
UL Recognized Component - E72445
(For CHTA series)