1N4156, 1N4157, 1N4453, 1N4829, 1N4830, 1N5179, MP.
Digitron Semiconductors
1N4156 - TIGHT TOLERANCE STABISTORS
1N4156, 1N4157, 1N4453, 1N4829, 1N4830, 1N5179, MPD100-MPD400A High-reliability discrete products and engineering services since 1977 TIGHT TOLERANC.