Heat Sinks since 1991

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Tipo A - Clamps
Tipo A - Clamps

Code: Tipo A
Clamps

Lega BxS Dimensione Peso al metro
0 [[part1]] [[part2]]
Codice KN MAX I F H
KL70A/30 13 70 30 105
KL70A/40 13 70 40 115
KL70A/50 13 70 50 125
KL70A/60 13 70 60 135
KL70A/70 13 70 70 145
KL70A/80 13 70 80 155
KL70A/90 13 70 90 165
KL70A/100 13 70 100 175
KL70A/110 13 70 110 185
Codice KN MAX I F H
KL79A/30 20 79 30 108
KL79A/40 20 79 50 128
KL79A/60 20 79 60 138
KL79A/70 20 79 70 148
KL79A/80 20 79 80 158
KL79A/90 20 79 90 168
KL79A/100 20 79 100 178
KL79A/110 20 79 110 188
Codice KN MAX I F H
KL89A/30 25 89 30 109
KL89A/40 25 89 40 119
KL89A/50 25 89 50 129
KL89A/60 25 89 60 139
KL89A/70 25 89 70 149
KL89A/80 25 89 80 159
KL89A/90 25 89 90 169
KL89A/100 25 89 100 179
KL89A/110 25 89 110 189
Codice KN MAX I F H
KL102A/30 30 102 30 125
KL102A/40 30 102 40 135
KL102A/50 30 102 50 145
KL102A/60 30 102 60 155
KL102A/70 30 102 70 165
KL102A/80 30 102 80 175
KL102A/90 30 102 90 185
KL102A/100 30 102 100 195
KL102A/110 30 102 110 205
Codice KN MAX I F H
KL118A/30 40 118 30 136
KL118A/40 40 118 40 146
KL118A/50 40 118 50 156
KL118A/60 40 118 60 166
KL118A/70 40 118 70 176
KL118A/80 40 118 80 186
KL118A/90 40 118 90 196
KL118A/100 40 118 100 206
KL118A/110 40 118 110 216
Codice KN MAX I F H
KL140A/30 50 140 30 180
KL140A/40 50 140 40 190
KL140A/50 50 140 50 200
KL140A/60 50 140 60 210
KL140A/70 50 140 70 220
KL140A/80 50 140 80 230
KL140A/90 50 140 90 240
KL140A/100 50 140 100 250
KL140A/110 50 140 110 260

Length: 0.00 mm

Weight: 0.00 kg/m

Weight A: 0.00 kg/m

Weight B: 0.00 kg/m

Height: 0.00 mm


Forced ventilation:

Rt: 0.00

Sample length: 0.00mm

Applied power: 0.00W

Vel. Fan: 0.00m/s

Natural ventilation:

Rt 0.00

Sample width: 0.00mm

Applied power: 0.00W

Tipo A - Clamps


Within this catalog, heat sinks are organized based on their shape and dimensions expressed in millimeters. Each profile is characterized by the following parameters:

  • Weight: expressed in kilograms per meter of profile length (Kg/m).
  • Length: indicated in millimeters and used for calculating thermal resistance (L).
  • Width: also in millimeters, considered for calculating thermal resistance (°C/W), applicable only to high-efficiency heat sinks.
  • Thermal Resistance in Natural Convection: expressed in °C/W with a temperature difference of 70°C (compared to an ambient temperature of 25°C).
  • Thermal Resistance in Forced Convection: also expressed in °C/W, with an air velocity of 3 m/s and a temperature difference of 50°C.

The values of thermal resistance have been determined through a thermal simulation program designed to replicate realistic conditions. In particular:

  • The heat source is uniformly distributed over approximately 50% of the dissipation surface, with central positioning on the heat sink.
  • To maximize natural convection heat dissipation efficiency, the heat sink is designed with vertical fins. For horizontal installations, it is advisable to consider an increase of approximately 20% in thermal resistance.
  • The surface of the heat sink is not subject to additional treatments.

Regarding black anodized heat sinks in natural convection, the thermal resistance is reduced by approximately 10%.

As the length of the heat sink increases, the thermal resistance decreases following a nonlinear law. The indicated values refer to the specified lengths; for different lengths, consult the “Length Correction Factor” graph to calculate the multiplication factor to be applied to the thermal resistance, both in natural and forced convection.

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