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Ohmite 40F25KE Silicone-Ceramic Conformal Resistor

Ohmite 40 Series resistors are a cost-effective solution for a wide range of electrical and electronic applications. These wirewound resistors feature a conformal silicone-ceramic coating, providing excellent protection and stability under high-temperature conditions. Their all-welded construction ensures durability, while their low temperature coefficients and resistance to thermal shock make them suitable for demanding environments. Available in both 1% and 5% tolerance options, these resistors meet industry requirements for quality and are RoHS compliant.

Authorized Distributors
Source:DigiKey
Part No:40F25KE
Stock:0
Inv Date:06-01-2026
Price: Unit price: $2.07932
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Part No:40F25KE
Stock:159
Inv Date:06-02-2026
Price: Unit price: $4.89
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Part No:40F25KE
Stock:0
Inv Date:06-01-2026
Price: Unit price: $2.21
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Part No:40F25KE
Stock:490
Inv Date:06-01-2026
Price: Unit price: $1.47
Buy/RFQ:
Part No:40F25KE
Stock:490
Inv Date:06-01-2026
Price: Unit price: $1.47
Buy/RFQ:
Part No:40F25KE
Stock:200
Inv Date:06-02-2026
Price: N/A
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Ohmite 40F25KE Silicone-Ceramic Conformal Resistor Specifications:

  • Material Coating: Conformal siliconeceramic
  • Core: Ceramic
  • Terminals: Solder-coated copper clad axial (96% Sn, 3.5% Ag, 0.5% Cu)
  • Tolerance: ±5% (J type), ±1% (F type)
  • Power Rating: Based on 25°C free air rating
  • 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; 1Ω to 9.99Ω: ±50 ppm/°C; 10Ω and over: ±20 ppm/°C
  • Derating: Linearly from 100% @ +25°C to 0% @ +275°C

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Frequently Asked Questions

Where can I buy Ohmite 40F25KE?

You can click on the BUY or RFQ button to purchase 40F25KE from an authorized Ohmite distributor.

How do I troubleshoot issues or seek technical support for part 40F25KE?

You can download the 40F25KE datasheet or visit the Ohmite website for support.

Who is the manufacturer of 40F25KE?

Ohmite

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