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Ohmite 81F301 Wirewound Resistor
Ohmite’s 81F301 resistor is a high-quality conformal axial terminal wirewound resistor, part of the 80 Series. Designed for precision power applications, it boasts an all-welded construction and a silicone-ceramic conformal coating, ensuring stability and reliability. The resistor’s low temperature coefficient and tight tolerance make it suitable for demanding industrial environments where precision and consistency are critical. It is available in various ohmic values and wattage ratings, catering to a wide range of circuit designs. The resistor’s robust construction and conformal coating provide excellent protection against environmental factors, extending its lifespan and ensuring consistent performance.
Ohmite 81F301 Wirewound 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 81F301?
You can click on the BUY or RFQ button to purchase 81F301 from an authorized Ohmite distributor.
How do I troubleshoot issues or seek technical support for part 81F301?
You can download the 81F301 datasheet or visit the Ohmite website for support.
Who is the manufacturer of 81F301?
Ohmite