A feedthru (210, 210'), comprising: a header; at least one conductive pin that extends through the header, wherein the at least one conductive pin includes an exposed first end and an exposed second end spaced by an insulated portion; the at least one conductive pin connects a first conductive element connected with a first electrical device (300, 300a, 300b, 104, 105, 105') and a second conductive element connected with another electrical device (20, 301), whereby the exposed first end connects to the first conductive element and the exposed second end connects to the second conductive element; characterised in that a ceramic based coating located on at least a portion of the second end of the at least one conductive pin that abuts the insulated portion of the pin; a ceramic based coating located on at least a portion of a second side of the header that abuts the insulated portion of the pin; and a ceramic based coating located on at least one of the following: at least a portion of the first end of the at least one conductive pin that abuts the insulated portion of the at least one conductive pin; and at least a portion of a first side of the header that abuts the insulated portion of the pin, wherein the first end of the at least one conductive pin extends from the first side of the header, and wherein the second end of the at least one conductive pin extends from the second side of the header. a header; at least one conductive pin that extends through the header, wherein the at least one conductive pin includes an exposed first end and an exposed second end spaced by an insulated portion; the at least one conductive pin connects a first conductive element connected with a first electrical device (300, 300a, 300b, 104, 105, 105') and a second conductive element connected with another electrical device (20, 301), whereby the exposed first end connects to the first conductive element and the exposed second end connects to the second conductive element; characterised in that a ceramic based coating located on at least a portion of the second end of the at least one conductive pin that abuts the insulated portion of the pin; a ceramic based coating located on at least a portion of a second side of the header that abuts the insulated portion of the pin; and a ceramic based coating located on at least one of the following: at least a portion of the first end of the at least one conductive pin that abuts the insulated portion of the at least one conductive pin; and at least a portion of a first side of the header that abuts the insulated portion of the pin, wherein the first end of the at least one conductive pin extends from the first side of the header, and wherein the second end of the at least one conductive pin extends from the second side of the header. at least a portion of the first end of the at least one conductive pin that abuts the insulated portion of the at least one conductive pin; and at least a portion of a first side of the header that abuts the insulated portion of the pin, wherein the first end of the at least one conductive pin extends from the first side of the header, and wherein the second end of the at least one conductive pin extends from the second side of the header.