A 1Ω resistor plays a specialized role in circuits. It is commonly used as a low-value current sense resistor: by measuring the small voltage drop across it, current can be calculated accurately. It also serves as a jumper resistor in power supplies or as an inrush current limiter. The QUADRIOS 22P038 delivers 100 pieces of this low-value metal film resistor, meeting specific needs in power supply debugging, battery management, and motor control.

Key Specifications

At 1Ω, the metal film construction and ±1% tolerance ensure accurate resistance for precise current measurements. The ±100 ppm/K temperature coefficient means resistance changes by only 0.01% per degree Celsius, critical for stable current sensing. The 0.25W rating corresponds to a maximum current of 500 mA. For higher currents, a higher power resistor would be needed.

Mechanical and Application Notes

The axial leaded package measures 6 mm in length with a 2.3 mm diameter. These resistors can be inserted horizontally or vertically on PCBs and breadboards. The bag contains 100 pieces of the same value.