Ceramic Resistor Heat Sink

However even this description is out of date.

Ceramic resistor heat sink.

Ohmite now carries a line of heatsink solutions that are specifically designed for your bga and pbga applications. Simple metal heat sinks. They are most often wire wound resistors. Nowadays the resistance wire itself may be replaced by a moulded spiral of metal oxide compound.

The aluminum cased types are designed to be attached to a heat sink to dissipate the heat. A surface mount power resistor with a pad for heatsink may require a copper pour heatsink or a physical heat sink of some kind attached see the datasheet for the component in question. The rated power is dependent on being used with a suitable heat sink e g a 50 w power rated resistor overheats at a fraction of the power dissipation if not used with a heat sink. Headquarters 27501 bella vista parkway warrenville il 60555 usa 1 866 9 ohmite 1 866 964 6483.

It is a nickname for the heat resistant ceramic case in which a coil of resistance wire is potted. A simple practical heat sink is an aluminum or steel plate as shown in figure 1. Large wirewound resistors may be rated for 1 000 watts or more.