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EnglishRARA IRF250
Specifications
| Weight | 245.00000 kg |
|---|---|
| Dimensions | 10.00 x 80.00 x 180.00mm |
| Product Type | |
| Series / Model | |
| Power Rating | |
| Minimum Resistance | 1Ω |
| Maximum Resistance | 2.79kΩ |
| Tolerance | |
| Temperature Coefficient | |
| Insulation Resistance | 20MΩ minimum |
| Filling Material | Cement, Silicone |
| Temperature Range (°C) | -55 to +150°C (Silicone), -55 to +200°C (Cement) |
IRF Series Products
Electronic Components
| Product name | Dimensions | Power Rating | Minimum Resistance | Maximum Resistance | Tolerance | Temperature Coefficient | Datasheet | Add to enquiry |
|---|---|---|---|---|---|---|---|---|
| RARA IRF100 | 10.00 x 80.00 x 90.00mm | 100W | 1Ω | 1.1kΩ | ±0.5%, ±1%, ±2%, ±5%, ±10% | ±260 ppm/°C | Add to Enquiry | |
| RARA IRF150 | 10.00 x 80.00 x 120.00mm | 150W | 1Ω | 1.75kΩ | ±0.5%, ±1%, ±2%, ±5%, ±10% | ±260 ppm/°C | Add to Enquiry | |
| RARA IRF200 | 10.00 x 80.00 x 150.00mm | 200W | 1Ω | 2.2kΩ | ±0.5%, ±1%, ±2%, ±5%, ±10% | ±260 ppm/°C | Add to Enquiry | |
| RARA IRF250 | 10.00 x 80.00 x 180.00mm | 250W | 1Ω | 2.79kΩ | ±0.5%, ±1%, ±2%, ±5%, ±10% | ±260 ppm/°C | Add to Enquiry | |
| RARA IRF300 | 10.00 x 80.00 x 210.00mm | 300W | 1Ω | 3.5kΩ | ±0.5%, ±1%, ±2%, ±5%, ±10% | ±260 ppm/°C | Add to Enquiry | |
| RARA IRF400 | 10.00 x 80.00 x 270.00mm | 400W | 1Ω | 4.45kΩ | ±0.5%, ±1%, ±2%, ±5%, ±10% | ±260 ppm/°C | Add to Enquiry | |
| RARA IRF500 | 10.00 x 80.00 x 330.00mm | 500W | 1Ω | 5.78kΩ | ±0.5%, ±1%, ±2%, ±5%, ±10% | ±260 ppm/°C | Add to Enquiry |
IRF Series Description
The IRF series from RARA consists of metal-clad, wirewound, high-power resistors, specifically designed for industrial use and other areas where space efficiency is essential. These low inductance resistors are perfectly suited for applications such as motor drives, braking, snubber applications, and powering industrial equipment. They feature a compact, flat design that not only conserves space but also promotes excellent heat dissipation.
The series is encased in an extruded aluminium housing, which provides robust protection and is ideal for challenging environments, and is available with flying leads. This design choice contributes to the IRF resistors' suitability for a range of industrial applications. They offer a significant power rating of up to 500W when mounted on a heat sink, with resistance values ranging from 1Ω to 5.78kΩ.
Customers can choose between cement or silicone filling materials based on their specific needs. The IRF series is marked by its precise and reliable performance, thanks to tolerances as low as ±0.5%. These resistors can operate effectively over a wide temperature range, with cement variants handling temperatures from -55℃ to +200℃, and silicone variants from -55℃ to +150℃. Additionally, they have a maximum Temperature Coefficient of Resistance (TCR) of ±260ppm/℃, with tolerances ranging from ±0.5% up to ±10.0%, making them a versatile and reliable choice for demanding industrial applications.
RARA IRF250 Ordering Info
Below is the model number configuration for the IRF series from RARA.Series / Model (IRFXXX)
IRF250
Filling Material (X)
- C
- Cement
- S
- Silicone
Resistance Value (XXXXΩ)
Resistance value expressed in ohms, for example 0.5Ω or 225.5Ω.
Tolerance (X)
- D
- ±0.5%
- F
- ±1%
- G
- ±2%
- J
- ±5%
- K
- ±10%
Termination (FLXXX)
FL XXX Flying Lead **
(Blank) 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.
