BT138E Triac Posted 6th July 2015 by by £3.93 BT138E Triac quantity Add to basket SKU: BT138E Categories: Electronic Parts, Spares & Accessories, Transistors Description Additional information Description Triac. Used on GI circuit control. Additional information Weight 10 g Related products Rubber grommet 23-6420 £0.37 Add to basket 2″ Rubber Ring £0.59 Select options This product has multiple variants. The options may be chosen on the product page Yellow Post Sleeve £0.70 Add to basket 1 1/4″ Rubber Ring £0.52 Select options This product has multiple variants. The options may be chosen on the product page