St 7805 series 1a 5v smt fixed voltage regulator st l7805cd2t tr fixed positive voltage regulator 5v output voltage 2v dropout voltage single output 1a output current 35v supply voltage 0 to 150 c d2 pak case mounted directly to a heatsink protected by internal current limiting and thermal shut down supplied in reel st l7805cd2t tr voltage regulator 5v 1a d2pak