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TTElectronics - Welwyn WCR04024K7FI General Purpose Surface Resistors

The WCR series resistors are high-reliability, general-purpose surface-mounted components designed for industrial applications. They feature a high alumina substrate with ruthenium oxide resistance elements, tin-plated terminations, and a glazed protection coat. These resistors offer a wide range of sizes and ohmic values, with wrap-around terminations for enhanced connection stability. Applicable in various electronic circuits, they meet safety and durability standards, including IEC and RoHS compliance. Suitable for demanding environments, they provide stable performance, low TCR for low and high resistance values, and resistance to industrial cleaning fluids.

Authorized Distributors
Source:DigiKey
Part No:WCR0402-4K7FI
Stock:30000
Inv Date:06-09-2026
Price: Unit price: $0.0137
Buy/RFQ:
Part No:WCR0402-4K7FI
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.22
Buy/RFQ:

TTElectronics - Welwyn WCR04024K7FI General Purpose Surface Resistors Specifications:

  • Resistance Range: <50Ω to >1MΩ
  • Temperature Rating: -55°C to 155°C
  • Resistance Tolerance: ±1%, ±2%, ±5%
  • TCR: -400 to +600 ppm/°C for low values; +200 to +300 ppm/°C for high values
  • Material: Alumina substrate with ruthenium oxide element
  • Terminations: Tin-plated copper, meets IEC 115-1 and IEC 68.2.21 requirements
  • Physical Size: Includes 0201, 0402, 0603, 0805, 1206, 1210, 2010, 2512 formats
  • Packaging: Tape-mounted on reels, 8mm, 12mm tapes, and plastic reels
  • Climatic Testing: Voltage proof up to 500V, load life at 70°C for 1000 hours with ±2% AR
  • Shelf Life: 12 months at room temperature, resistant to common industrial cleaning fluids

Buy the TT Electronics WCR04024K7FI – Reliable Resistors for Industrial Applications

Purchase TT Electronics WCR04024K7FI resistors online today to benefit from high reliability, tight resistance tolerances, and wide temperature range suitable for industrial applications. These surface-mounted components are engineered with high alumina substrates, ruthenium oxide resistance elements, and robust, compliant terminations to ensure long-lasting performance. Ideal for demanding environments, they provide excellent stability, resistance to industrial cleaning, and flexibility in various electronic circuits. Order now for fast delivery and superior quality in compact, easy-to-assemble formats.

Get TT Electronics WCR04024K7FI today—built for precision, durability, and broad resistance ranges suitable for industrial environments.

Frequently Asked Questions

Where can I buy TTElectronics - Welwyn WCR04024K7FI?

You can click on the BUY or RFQ button to purchase WCR04024K7FI from an authorized TTElectronics - Welwyn distributor.

How do I troubleshoot issues or seek technical support for part WCR04024K7FI?

You can download the WCR04024K7FI datasheet or visit the TTElectronics - Welwyn website for support.

Who is the manufacturer of WCR04024K7FI?

TTElectronics - Welwyn

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