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Products >>> Relays >>>Heat Sink
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Heat Sink |
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35mm Din Rail Plastic
Type"J-58" 708/701 Model
Current up to 7 Amp
43mm(W)x58mm(L)x
20mm(H)+SSR
Weight :@35gms
Price US $1.05+US $0.25 Din Rail |
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35mm Din Rail Plastic
Type"K-58" 708 Model
Current up to 12Amp
35mm(W)x58mm(L)x
44.5mm(H)+SSR
Weight :@90gms
Price US $2.20+US $0.25 Din Rail |
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35mm Din Rail Plastic
Type"B-77" 701 Model
Current up to 16 Amp
51mm(W)x77mm(L)x
37mm(H)+SSR
Weight :@195gms
Price US $2.95+US $0.95 Din Rail |
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35mm Din Rail Plastic
Type"C-77" 701/707 Model
Current up to 30 Amp
58mm(W)x77mm(L)x
67mm(H)+SSR
Weight :@485gms
Price US $7.65+US $0.95 Din Rail |
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35mm Din Rail Plastic
Type"E-77" 705Model
Current up to 18Amp
100mm(W)x77mm(L)x
27mm(H)+SSR
Weight :@270gms
Price US $6.05+US $0.95 Din Rail |
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35mm Din Rail Plastic
Type"L-100" 701/707/705 Model
Current up to 40 Amp
100mm(W)x100mm(L)x
49mm(H)+SSR
Weight :@650gms
Price US $11.95+US $0.95 Din Rail |
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35mm Din Rail Plastic
Type"V-120" 701/707/705Model
Current up to 60 Amp
701model-3nos,707 model-1no,
705 Model-1no
66mm(W)x145mm(L)x60mm(H)
+SSR Weight @750gms
Price us $ 23.10
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Selection of Heat Sink |
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| Tj - TA |
=P(ReJC+ReCS+ReSA) |
| Tj |
=Junction Temperature(0C)125 0C |
| TA |
=Ambient Temperature(0C) |
| P |
=Power dissipation(watts)
voltage drop x load current |
| ReJC |
=Thermal Resistance junction to case 0CW |
| ReCS |
=Thermal Resistance of Heat Sink
Compound (0.20C/WTYP) |
| ReSA |
Thermal resistance of external
heat Sink ( 0C/W) it depend upone length,
width, expose aluminum (0.5 to 5) |
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If SSR current capacity is high and SSR is in use for lower capacity of load
current than heat sink size will be reduced
Example:
a) 50Amp SSR used for 15Amp Load Current than "B" Type of Heat Sink.
b) 50Amp SSR used for 25Amp Load Current than "C" Type of Heat Sink.
Heat Sink Fins should be in vertical position so that hot air flow
from bottom to top - self cooling
Keep 20mm gap at top & bottom of heat sink
Apply Heat sink compound between SSR and Heat Sink |
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