Passives
TO247 thick film resistor from Ohmite has 100W rating
The development of a new heatsink which aids low thermal resistance has enabled Ohmite to push the power ratings of their TO-247 resistors to new levels, resulting in the new TEH100 which is rated at 100W at a 25°C case temperature.
Ideally suited to power supply applications, the thick film, non-inductive power resistor is totally encapsulated and insulated and attaches to the heatsink with a simple, single screw mounting. Environmental issues are addressed by the totally moulded housing.
The TEH100 has a maximum working voltage of 350V and is available in stock resistance ranges of 0.05Ω to 1MΩ. Resistance tolerances are ±1%, ±2%, ±5%, ±10% and the linear derating is 100% at 25°C to 0% at 175°C.