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TTElectronics - Welwyn MFR42K4FI Metal Film Resistors

The Welwyn MFR series resistors are axial leaded, professional-grade metal film resistors based on thin film technology. They feature a resistance range from 1 ohm to 1 megaohm, utilizing precisely controlled thin film of metal alloy sputtered onto a high-purity ceramic core, protected by a moisture-resistant, high dielectric strength coating that ensures clear terminations. These resistors are approved to BSCECC 40101-803 and 019 standards, available in 0.5% and 1% tolerance, with a temperature coefficient of ±50ppm/°C. They have a power rating of 500mW and operate over temperatures from -55°C to 155°C. Market demand has extended lead times, and the product is exempt from discounts.

Authorized Distributors
Source:Newark
Part No:MFR4-2K4FI
Stock:436
Inv Date:06-09-2026
Price: Unit price: $0.024
Buy/RFQ:
Part No:MFR4-2K4FI
Stock:10332
Inv Date:06-10-2026
Price: Unit price: $0.49
Buy/RFQ:

TTElectronics - Welwyn MFR42K4FI Metal Film Resistors Specifications:

  • Resistance Range: 1 ohm to 1 megaohm
  • Tolerance: 0.5% and 1%
  • Temperature Coefficient: ±50ppm/°C
  • Power Rating: 0.5W
  • Operating Temperature Range: -55°C to 155°C
  • Resistance Stability: Meets BSCECC 40101-803 and 019 standards
  • Material: Metal alloy thin film on ceramic core
  • Protection: Moisture-resistant, high dielectric coating
  • Terminations: Clear, leaded axial configuration
  • Voltage Rating: 250V to 350V depending on resistance and standard
  • Compliance: RoHS3, Pb-free, EU Directive 2011/65/EU
  • Physical Dimensions: Length up to 37mm, diameter up to 2.0mm (varies by type)
  • Market Lead Time: Extended due to high demand
  • Usage: Precision resistors for industrial and electronic circuits

Buy the Buy TT Electronics MFR Series Resistors Part Number MFR42K4FI Online

Order TT Electronics MFR42K4FI metal film resistors online today for exceptional precision, high stability, and reliable performance in your electronic projects. These professional grade resistors feature tight tolerances of 0.5% and 1%, a low temperature coefficient of ±50ppm/°C, and operate over a wide temperature range from -55°C to 155°C. Designed with a moisture-resistant coating on a ceramic core, they meet strict standards including BSCECC 40101-803 and 019. Perfect for industrial, automation, and electronics applications requiring accurate, stable resistors, with extended lead times due to high demand.

Get TT Electronics MFR42K4FI today—built for precision and long-lasting durability in high-stability electronic applications.

Frequently Asked Questions

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You can download the MFR42K4FI datasheet or visit the TTElectronics - Welwyn website for support.

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TTElectronics - Welwyn

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