1.5Ω 225W Fixed Resistor Dale Style (4298842 WLJ121)

If you’re looking for a robust component capable of handling high thermal and industrial demands, this 1.5Ω 225W Fixed Resistor is the ideal solution. Inspired by the legendary durability standards of Dale-style components, this wirewound resistor is designed for power applications where precision and heat dissipation are critical.

Detailed Technical Specifications:

• Component Type: Wirewound Power Resistor

• Resistance / Impedance: 1.5 Ohms (Tested and Verified)

• Rated Power Capacity: 225 Watts (W)
  Engineering Note: Due to its compact size, achieving the full 225W continuous dissipation requires mounting on a heat sink or using forced-air cooling.

• Dimensions: 261 mm length í— 28 mm diameter

• Identification Markings: 4298842 WLJ121

• Cosmetic Condition: New Old Stock (NOS) component. Shows scratches and visible wear on the outer enamel due to long-term storage without original packaging.

• Electrical Condition: 100% functional. Thoroughly tested with a precision multimeter, ensuring nominal resistance value with no leakage or open circuits.

What is the 1.5Ω 225W Fixed Resistor used for?
This type of high-power, low-resistance component is designed for electronic engineers, automation technicians, and machinery restoration specialists. Its main applications include:

• Dynamic Braking: Used to dissipate energy generated by industrial electric motors during stopping.

• Load Banks: Used as a dummy load to test high-current power supplies.

• Current Limiting: Used in heavy motor startup circuits or protection systems (snubber circuits).

Manufacturer Background (Dale / Vishay Style):
Dale Electronics was founded in 1950 in Columbus, Nebraska, USA. It quickly became the gold standard (MIL-SPEC) for the aerospace and military industries, thanks to its nearly indestructible wirewound resistors. In 1985, Vishay Intertechnology acquired Dale. Today, components with the classic Dale tubular format are synonymous with old-school military and industrial reliability.

(FAQ)

Q: Does the external cosmetic damage affect performance?
A: Not at all. The wear is purely cosmetic, caused by contact with other components during storage. The internal wirewound element remains intact and has been verified with a precision multimeter to ensure an accurate 1.5-ohm resistance value.

Q: Is a heatsink required for this component?
A: Yes. To operate this resistor continuously at its full 225W rating, proper thermal management is essential, such as a suitable heatsink or forced-air cooling, due to its high power density in a compact 61í—28 mm form factor.

Q: Is it compatible as a replacement for modern load bank components?
A: Yes, as long as the circuit requires the exact 1.5-ohm specification and has sufficient space and thermal management to accommodate this 225W model.