tokens: For limited life duration , known instability , safety hazard or reliability risk reasons , the EEE components listed below shall not be used : 1 . EEE components with pure tin ( less than 3 % Pb in case of SnPb alloy ) used as a finish on the leads , terminations and external surfaces of components and packages . 2 . Hollow core resistors , 3 . Potentiometers ( except for mechanism position monitoring ) , 4 . Non - metallurgically bonded diodes , 5 . Semiconductor dice with unglassivated active area , 6 . Wet slug tantalum capacitors other than capacitor construction using double seals and a tantalum case , 7 . Any component whose internal construction uses metallurgic bonding with a melting temperature not compatible with the end - application mounting conditions , 8 . Wire link fuses < 5 A , 9 . TO5 relays without double welding of the mechanism to the header or with any type of integrated diodes inside .