The IRF250 flat type metal clad wire wound resistor series from RARA, offers a power rating of up to 250W on a heat sink and available resistance values between 1ฮฉ and 2.79kฮฉ. These high power and low inductance resistors are designed for industrial and other applications where space is at a premium, the flat design also allows for excellent heat dissipation. The IRF250 series from RARA offers an extruded aluminium housing which provides strong and rugged protection, with options of cement or silicone filling materials as well as tolerances as low as ยฑ0.5%. This resistor series offers a temperature range from -55ยฐC up to +200ยฐC (cement filling material).
Typical applications for the IRF series include:
| Weight | 245.00000 kg |
|---|---|
| Dimensions | 10.00 x 80.00 x 180.00mm |
| Product Type | |
| Series / Model | |
| Power Rating | |
| Minimum Resistance | 1ฮฉ |
| Maximum Resistance | 2.79kฮฉ |
| Tolerance | |
| Temperature Coefficient | |
| Insulation Resistance | 20Mฮฉ minimum |
| Filling Material | Cement, Silicone |
| Temperature Range (ยฐC) | -55 to +150ยฐC (Silicone), -55 to +200ยฐC (Cement) |
IRF250
Resistance value expressed in ohms, for example 0.5ฮฉ or 225.5ฮฉ.
FL XXXย ย ย Flying Lead **
(Blank)ย ย ย Tab Terminal
* Please include required lead length with quote request, for example, FL300 for 300mm flying leads.
Thermostat options are available for these models. Please speak to an engineer for more information.
| SKU | Resistance Value | Tolerance | Filling Material | Lead Length |
|---|---|---|---|---|
| RARA IRF250 Series | Custom (1ฮฉ - 2.79kฮฉ) | ยฑ0.5% | Cement | |
| RARA IRF250 Series | Custom (1ฮฉ - 2.79kฮฉ) | ยฑ0.5% | Silicone | |
| RARA IRF250 Series | Custom (1ฮฉ - 2.79kฮฉ) | ยฑ1% | Cement | |
| RARA IRF250 Series | Custom (1ฮฉ - 2.79kฮฉ) | ยฑ1% | Silicone | |
| RARA IRF250 Series | Custom (1ฮฉ - 2.79kฮฉ) | ยฑ10% | Cement | |
| RARA IRF250 Series | Custom (1ฮฉ - 2.79kฮฉ) | ยฑ10% | Silicone | |
| RARA IRF250 Series | Custom (1ฮฉ - 2.79kฮฉ) | ยฑ2% | Cement | |
| RARA IRF250 Series | Custom (1ฮฉ - 2.79kฮฉ) | ยฑ2% | Silicone | |
| RARA IRF250 Series | Custom (1ฮฉ - 2.79kฮฉ) | ยฑ5% | Cement | |
| RARA IRF250 Series | Custom (1ฮฉ - 2.79kฮฉ) | ยฑ5% | Silicone |
| Product name | Dimensions | Power Rating | Minimum Resistance | Maximum Resistance | Tolerance | Temperature Coefficient | Datasheet | |
|---|---|---|---|---|---|---|---|---|
| RARA IRF100 | 10.00 x 80.00 x 90.00mm | 100W | 1ฮฉ | 1.1kฮฉ | ยฑ0.5%, ยฑ1%, ยฑ2%, ยฑ5%, ยฑ10% | ยฑ260 ppm/ยฐC | View Product | |
| RARA IRF150 | 10.00 x 80.00 x 120.00mm | 150W | 1ฮฉ | 1.75kฮฉ | ยฑ0.5%, ยฑ1%, ยฑ2%, ยฑ5%, ยฑ10% | ยฑ260 ppm/ยฐC | View Product | |
| RARA IRF200 | 10.00 x 80.00 x 150.00mm | 200W | 1ฮฉ | 2.2kฮฉ | ยฑ0.5%, ยฑ1%, ยฑ2%, ยฑ5%, ยฑ10% | ยฑ260 ppm/ยฐC | View Product | |
| RARA IRF250 | 10.00 x 80.00 x 180.00mm | 250W | 1ฮฉ | 2.79kฮฉ | ยฑ0.5%, ยฑ1%, ยฑ2%, ยฑ5%, ยฑ10% | ยฑ260 ppm/ยฐC | View Product | |
| RARA IRF300 | 10.00 x 80.00 x 210.00mm | 300W | 1ฮฉ | 3.5kฮฉ | ยฑ0.5%, ยฑ1%, ยฑ2%, ยฑ5%, ยฑ10% | ยฑ260 ppm/ยฐC | View Product | |
| RARA IRF400 | 10.00 x 80.00 x 270.00mm | 400W | 1ฮฉ | 4.45kฮฉ | ยฑ0.5%, ยฑ1%, ยฑ2%, ยฑ5%, ยฑ10% | ยฑ260 ppm/ยฐC | View Product | |
| RARA IRF500 | 10.00 x 80.00 x 330.00mm | 500W | 1ฮฉ | 5.78kฮฉ | ยฑ0.5%, ยฑ1%, ยฑ2%, ยฑ5%, ยฑ10% | ยฑ260 ppm/ยฐC | View Product |
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