API Nanotronics Corp., a Hauppauge, N.Y.-based supplier of electronic components to the defense and communications sectors, said its Filtran Ltd. division received more than $1.2 million in new orders in March. The orders were for various transformers, inductors and filters for a major manufacturer of military radio communication systems, both ground- and air-based. Filtran’s products are used in different HF/VHF/UHF radios, power supplies and accessories for a variety of secure military and government RF communication platforms.