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Ohmite 83F249 Silicone-Ceramic Conformal Resistor
Ohmite's 83F249 series resistors are engineered for applications requiring high precision and stability. These wirewound resistors utilize a silicone-ceramic conformal coating, providing excellent protection and maintaining performance under challenging environmental conditions. The all-welded construction ensures robust reliability, while the low temperature coefficient contributes to consistent resistance values. They are suitable for precision power applications and are available in a range of wattage and ohmic values to meet diverse design requirements. Non-inductive versions are also available.
Ohmite 83F249 Silicone-Ceramic Conformal 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% (J type), ±1% (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 83F249?
You can click on the BUY or RFQ button to purchase 83F249 from an authorized Ohmite distributor.
How do I troubleshoot issues or seek technical support for part 83F249?
You can download the 83F249 datasheet or visit the Ohmite website for support.
Who is the manufacturer of 83F249?
Ohmite