Zener Diode,
2.5V, 0.4W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-34, MHD, 2 PIN
6.45 V, 0.4 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-34, MHD, 2 PIN
4.7V, 0.4W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-34, MHD, 2 PIN