Peak pca23 sot23 component test adaptor peak pca23 p the peak pca23 test adaptor makes it easy to test sot23 surface mount components with your peak tester or multimeter the test adaptor is designed to complement your dca55 or dca75 or any other semiconductor tester p p it is extremely easy to use thanks to the special spring loaded socket assembly that holds an sot23 part gently and securely against gold plated sprung contacts with carefully controlled contact force the adaptor is des