shunt

Electrical parameters and dimensions of fixed-value shunts and precision alloy resistors. Q53 series precision alloy resistors: These resistors are made from precision alloy wires, offering high reliability, excellent overload capacity, as well as easy soldering and no inductance effects. × Rated current: 6–14A, resistance range: 2–25mΩΩ ； The allowable tolerance for the resistance value is ±5% to ±10%, with a temperature range of -55 to +85°C. Q50 series precision alloy resistors: These resistors are made from precision alloy sheets, and the copper terminals welded in place ensure extremely high electrical performance at the contacts. This structure provides a high-reliability, high-overload-capacity induction-free resistor. × At 70°C, the rated power is 1–3W, with a resistance range of 5–35mΩΩ ； The temperature coefficient deviation of the resistance value is ±1% to ±5%, with a temperature range of -55 to +300°C. The FL13 type is a fixed-value shunt, while the FL13A type/FL2 are also fixed-value shunts. Purpose of these fixed-value shunts: They are used to expand the current measurement range of instruments; their rated currents can be found in the corresponding specification tables. Main technical parameters: Accuracy class: 5–4000A: 0. Level 5 ； 5000~10000A: Class 1 environmental conditions: -40~+60°C, relative humidity ≤95% (at 35°C). Mechanical stress resistance: capable of withstanding transportation shocks of an acceleration of 70 meters/second and an impact frequency of 80~120 times per minute for 6 hours. Overload capacity: 120% of rated current for 2 hours. Voltage drop: 50mV, 75mV, 100mV. Heat generation under load: After the temperature rise stabilizes, it does not exceed 80°C at rated currents below 50A. The rated current is above 50A and does not exceed 120°C.