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TTElectronics - Welwyn ULW247RJA25 Wirewound Fusible Resistors

The ULW series resistors are UL recognized wirewound fusible resistors suitable for mains fusing, surge handling, and overload protection in electronic circuits. They feature high-quality ceramic rods, flameproof coatings, and precise marking for value and tolerance. These resistors are designed for applications requiring reliable overload fusing, with resistance values ranging from 4.7Ω to 100Ω, and come in various power ratings from 2W to 5W at 25°C. The series includes leadform and SMD options, ensuring versatility across different electronic and industrial applications. They meet RoHS standards, are UL recognized, and are suitable for use in harsh environments.

Authorized Distributors
Source:Newark
Part No:ULW2-47RJA25
Stock:280300
Inv Date:06-09-2026
Price: Unit price: $0.194
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Source:DigiKey
Part No:ULW2-47RJA25
Stock:0
Inv Date:06-09-2026
Price: Unit price: $0.63
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Source:DigiKey
Part No:ULW2-47RJA25
Stock:272450
Inv Date:06-09-2026
Price: Unit price: $0.14
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Part No:ULW2-47RJA25
Stock:27
Inv Date:06-10-2026
Price: Unit price: $0.76
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TTElectronics - Welwyn ULW247RJA25 Wirewound Fusible Resistors Specifications:

  • Power Rating at 25°C: 2W to 5W
  • Resistance Range: 4.7Ω to 100Ω
  • Tolerance: ±5%
  • Maximum Continuous Voltage: Up to 264V
  • Ambient Temperature Range: -55°C to +155°C
  • Flameproof coating: UL94-V0
  • Terminations: Hot tin dipped copper wire, IEC 68.2.21 compliant
  • Construction: Ceramic rod with welded end caps, fusible cement coating
  • Pulse Performance: Suitable for high-energy pulses (see datasheets)
  • Fusing characteristic: ULW2, ULW3, ULW4, ULWS with specified fusing times
  • Marking: ULW2 & ULW3 marked with five color bands, ULW4 & ULWS with legend

Buy the Buy UL Electronics ULW Series Part Number ULW247RJA25 Online

Order UL electronics ULW series wirewound fusible resistors online today to experience high-quality overcurrent protection, surge resilience, and reliable overload fusing. These UL recognized resistors, suitable for applications up to 264V and temperatures ranging from -55°C to +155°C, feature flameproof coatings, UL marking, and are RoHS compliant. With power ratings from 2W to 5W and resistance values between 4.7Ω and 100Ω, they ensure safety and durability in industrial, household, or commercial electronics. Secure your supply of these versatile resistors now for dependable circuit protection that meets UL standards.

Buy UL Electronics ULW plastic or ceramic fusible resistors now and ensure reliable mains fusing, surge handling, and overload protection for your electronic applications.

Frequently Asked Questions

Where can I buy TTElectronics - Welwyn ULW247RJA25?

You can click on the BUY or RFQ button to purchase ULW247RJA25 from an authorized TTElectronics - Welwyn distributor.

How do I troubleshoot issues or seek technical support for part ULW247RJA25?

You can download the ULW247RJA25 datasheet or visit the TTElectronics - Welwyn website for support.

Who is the manufacturer of ULW247RJA25?

TTElectronics - Welwyn

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