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TTElectronics - Welwyn WP4S4K7JA2 Power Flameproof Resistor

The WP4S series are compact, flameproof, power wirewound resistors designed for industrial applications. They feature small sizes for high power ratings, enhanced pulse handling, and surface mount ZI-form options. Constructed with high purity ceramic substrates, flameproof silicone coating, and tin-dipped copper terminations, these resistors comply with RoHS and IEC standards. Suitable for high-temperature environments from -55°C to +155°C, they offer reliable performance in demanding conditions, with resistance values from 68 ohms to 10K ohms, and are ideal for equipment requiring robust, flameproof components.

Authorized Distributors
Source:Newark
Part No:WP4S-4K7JA2
Stock:714
Inv Date:06-09-2026
Price: Unit price: $1.55
Buy/RFQ:

TTElectronics - Welwyn WP4S4K7JA2 Power Flameproof Resistor Specifications:

  • Power rating at 25°C: 5s overload rating varies with model
  • Resistance range: RO68 to 430R, ROS to 900R, RO1 to 2K2, RO15 to 6K8
  • Limiting element voltage: 50V to 150V depending on model
  • Resistance Tolerance: <20R: 5%, >20R: 1%, 2.5%
  • Temperature Range: -55°C to +155°C
  • Dimensions: Body length up to 45mm, diameter up to 4mm, terminal diameter typical 0.6mm
  • Material: High purity ceramic substrate with flameproof silicone coating
  • Terminations: Hot tin dipped copper wire, compliant with IEC 68.2.21
  • Marking: Color bands or legend marking per IEC standards
  • Climatic category: 55/20/56
  • Maximum pulse energy: Up to 3W depending on series
  • Construction: Wound resistive element, interference fit end caps, welded terminations
  • Certification: RoHS compliant, meets IEC 68.2.21 and IEC 115-1 standards

Buy the TT Electronics WP4S – Reliable Flameproof Power Resistors for Industrial Applications

Experience the durability and robustness of TT Electronics WP4S power resistors, engineered for high-temperature environments and pulse handling. These flameproof, surface-mount resistors are RoHS compliant, constructed with high-quality ceramic substrates, and feature reliable tin-dipped copper terminations. Perfect for industrial and safety-critical applications, they ensure long-lasting performance under demanding conditions. With resistance values ranging from 68 ohms to 10K ohms, and protection against overloads, these resistors provide dependable service while complying with international safety standards. Order online today for fast delivery and superior quality.

Get TT Electronics WP4S resistors today—built for high temperature, pulse reliability, and industrial safety standards.

Frequently Asked Questions

Where can I buy TTElectronics - Welwyn WP4S4K7JA2?

You can click on the BUY or RFQ button to purchase WP4S4K7JA2 from an authorized TTElectronics - Welwyn distributor.

How do I troubleshoot issues or seek technical support for part WP4S4K7JA2?

You can download the WP4S4K7JA2 datasheet or visit the TTElectronics - Welwyn website for support.

Who is the manufacturer of WP4S4K7JA2?

TTElectronics - Welwyn

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