β310

The β310 is a varicap diode of IPRS Băneasa, listed in the Agenda radioelectronistului (2nd edition, 1989) as withdrawn from production, in a DO-35 (F-80) glass package [1]. The package drawing is in the Gallery.

The code is printed „β 310”. The table gives no VRM, a junction temperature Tj of 150 °C, no capacitance at VR = 9 V, a capacitance Ctot of 16…28 pF at VR = 4 V, a capacitance ratio of 1.6…2.25 (as printed) and a reverse current IRM of 1 µA at VR = 12 V [1].

A note to the table says that the β 310 and β 410 have been withdrawn from production („scos din fabricație”) [1].

The I.P.R.S. Băneasa Full Line Condensed Catalog (1990) lists the β310 among the „Variable capacitance diodes” of its „Small signal” section [2], with VR ≥ 12 V, Ctot 16–28 pF (f = 1 MHz, VR = 4 V), Ctot ratio 1.6–2.25 (4/9 V/V), DO-35 case [2].

The values given for the β310 elsewhere on this page [1] differ: Ctot ratio 1.6…2.25; package DO-35 (F-80), glass.