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Ohmite 81FR249 Conformal Axial Terminal Resistor
Ohmite's 81FR249 series resistors are high-quality, conformal axial terminal wirewound resistors designed for applications requiring high precision and stability. These resistors feature an all-welded construction and a silicone-ceramic conformal coating, providing excellent protection and performance. They maintain a high degree of stability under demanding conditions and are suitable for precision power applications. Available in various ohmic values and wattage ratings, these resistors are a reliable choice for critical circuits.
Ohmite 81FR249 Conformal Axial Terminal Resistor Specifications:
- Coating: Silicone-ceramic
- Core: Ceramic
- Terminals: Solder-coated copper clad axial
- Derating: Linearly from 100% @ +25°C to 0% @ +275°C
- Tolerance: ±5% (F type)
- Power rating: Based on 25°C free air rating
- Maximum ohmic values: See chart
- Overload: Under 5 watts: 5 times rated wattage for 5 seconds. 5 watts and over: 10 times rated wattage for 5 seconds
- Temperature coefficient: {'Under 1Ω': '±90 ppm/°C', '1 to 9.99Ω': '±50 ppm/°C', '10Ω and over': '±20 ppm/°C'}
- Dielectric withstanding voltage: 500 VAC: 1 watt rating; 1000 VAC: 2, 3, 5, 7, and 10 watt rating
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Frequently Asked Questions
Where can I buy Ohmite 81FR249?
You can click on the BUY or RFQ button to purchase 81FR249 from an authorized Ohmite distributor.
How do I troubleshoot issues or seek technical support for part 81FR249?
You can download the 81FR249 datasheet or visit the Ohmite website for support.
Who is the manufacturer of 81FR249?
Ohmite