The Solar 6220-1A is an audio isolation transformer specifically designed to support conducted audio-frequency susceptibility tests in accordance with MIL-STD-461/462 and other EMI compliance standards. It can also function as a sensitive pickup device for measuring low-frequency EMI currents at levels below the capabilities of conventional current probes.

Where would this be used? The Solar 6220-1A is used primarily in conducted immunity testing, EMI/EMC compliance testing, and transient immunity evaluations. It is well suited for military and aerospace qualification work, especially where MIL-STD-461/462 procedures apply. Additionally, it can be used for low-frequency EMI current measurements, power-line isolation during transient tests, and general electromagnetic interference diagnostics in laboratory environments.