These exceptionally low-cost heat sinks can be mounted horizontally under a TO-220 or TO-202 case style with a maximum height of only 0.375 in (9.4). For added performance, a 271 Series heat sink can also be used for double-sided heat dissipation. The 270-AB and 280-AB accept one power semiconductor; the 272-AB is designed for two power semiconductors.
Heat Sink TO-220, TO-202 Aluminum 4.0W @ 70°C Board Level
HEAT SINK; Thermal Resistance:17.5°C/W;
| Richardson RFPD | DigiKey | Newark, An Avnet Company | |
|---|---|---|---|
| Product Category | Heat Sinks | Heat Sinks | Heat Sinks |
| Product Number | 270-AB | 345-1041-ND | 81F042 |
| Product Name | Board Level Heat Sink | Heat Sinks | Heat Sink; Thermal Resistance Wakefield Thermal |
| H | 9.52 mm (0.3750 inch) | 9.4 mm (0.3701 inch) | |
| Mounting | PCB | Holes | |
| Thermal Resistance | 6 °C / W | 17.5 °C / W | 17.5 °C / W |
| Device | Passive Heat Sink |
