D638 Description
Transistor 2SD638, 2SD639 Silicon NPN epitaxial planer type For medium-power general amplification plementary to 2SB643 and 2SB644.
D638 is 2SD638 manufactured by Panasonic.
Transistor 2SD638, 2SD639 Silicon NPN epitaxial planer type For medium-power general amplification plementary to 2SB643 and 2SB644.