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Ohmite WHAR25FET Miniature Molded Wirewound Resistor
OHMITE's WHAR25FET is a miniature molded wirewound resistor engineered for high precision and reliability in demanding industrial environments. Constructed with a CeramTec Rubalit ceramic core, precision-formed stainless steel end caps, and 100% tin-coated copper wire leads, this resistor offers excellent thermal stability and solderability. The SUMICON epoxy molding compound provides robust encapsulation and protection. Meeting MIL-R-26F specifications, these resistors are suitable for applications requiring tight tolerances and consistent performance, such as automotive electronics, industrial control systems, and power supplies.
Ohmite WHAR25FET Miniature Molded Wirewound Resistor Specifications:
- Power Rating: 0.5 watts
- Resistance Range: 0.100 - 1.0K ohms
- Weight: 216 g/1000pc
- Core Material: CeramTec Rubalit 85% alumina
- End Caps: Stainless steel
- Lead Material: Copper wire, 100% Sn (lead free)
- Resistance Wire: ISAOHM wire TC ±20ppm/°C
- Encapsulation: SUMICON 1100/1200 Epoxy molding compound
- Standard Tolerance: D(0.5%), F(1.0%), J(5.0%)
- Temperature Coefficient: ±90 for 0.100Ω-0.99Ω, ±50 for 1.00Ω-10.00Ω, ±20 for >10.00Ω
- Maximum Working Voltage: (PxR)1/2
- Derating: Linearly from 100% @ +70°C to 0% @ +150°C
- Operating Temperature: -55°C to +150°C
- Thermal Shock: ±(1.0% + 0.5mΩ)ΔR
- Short-Time Overload: ±(0.5% + 0.5mΩ)ΔR
- Solderability: >90% of contact face
- Resistance to Heat: ±(0.5% + 0.5mΩ)ΔR
- Dielectric Withstanding Voltage: Pass
- Insulation Resistance: >109Ω
- High Temperature Exposure: ±(1.0% + 0.5mΩ)ΔR
- Low Temperature Storage: ±(0.5% + 0.5mΩ)ΔR
- Life Test: ±(2.0% + 0.5mΩ)ΔR
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Frequently Asked Questions
Where can I buy Ohmite WHAR25FET?
You can click on the BUY or RFQ button to purchase WHAR25FET from an authorized Ohmite distributor.
How do I troubleshoot issues or seek technical support for part WHAR25FET?
You can download the WHAR25FET datasheet or visit the Ohmite website for support.
Who is the manufacturer of WHAR25FET?
Ohmite