1. Magnetron parameters Pull-in ampere-turn AT: drive sensitivity, the smaller the value, the more sensitive it is Example: 10 AT = small magnet can be attracted; 50 AT requires strong magnet/large coil current Release value: magnetic field threshold for reliable disconnection after demagnetization Return difference: difference between suction and release AT, to prevent false triggering by slight vibration 2.Electrical load parameters Maximum switching voltage: DC/AC withstand voltage, high voltage type can be up to kV Maximum switching current: ordinary miniature only 0.1 ~ 0.5A, high-power dry reed up to several amperes Maximum switching power: contact capacity, resistive/inductive loads to be derated Contact resistance: milliohm level after conduction, the smaller, the lower the signal loss Insulation resistance: between the two poles of the glass tube ≥ 10 ≥ 10Ω, key indicators of high voltage scene 3. Life and environment Mechanical life: hundreds of millions of times without electricity and no load Electrical life: on-off with load, small signal for tens of millions of times, high power for only hundreds of thousands of times Working temperature: -40 ℃ ~ 125 ℃, sealed against moisture and oil