57283 is a trimmer/variable capacitors manufactured by Knowles Johanson Manufacturing. It features a capacitance range of 0.6 ~ 4.5pF, a adjustment type of Top, a voltage, rated of 500 V, a dielectric material of -, a Q @ freq of 1000 @ 200MHz and a size / dimension of 0.150" Dia (3.81mm). This part has a typical lead time of 63 Days from factory and ships with a full manufacturer datasheet available for download. Order 57283 from Simplytronix for authenticated stock and same-day order processing.