What is a jumper resistor? Is the resistance value of a 0 ohm resistor with 5% accuracy and 1% accuracy the same? 2

Why do we need a jumper resistor?

1. Circuit design flexibility: During the circuit design phase, jumper resistors can be used as temporary or permanent circuit connection points, providing design flexibility. If there are design changes, these resistors can be easily replaced or removed without redesigning the entire circuit board.diode

2. Testing and Debugging: During circuit testing and debugging, engineers can more easily modify circuits and test different configurations by using jumper resistors instead of directly soldering lines.

3. Simplification of Manufacturing and Assembly: The use of jumper resistors can simplify the manufacturing and assembly process of circuit boards. They can be assembled using standard surface mount technology (SMT), placed and soldered together with other resistors and components without the need for additional steps.diode

0 ohm resistors with 5% accuracy and 1% accuracy

Although the target resistance of 0 ohm resistors is 0 ohms, they actually have a small impedance due to physical and chemical limitations during the manufacturing process. Accuracy levels, such as 5% and 1%, indicate the tolerance range of their resistance values  diode