General view

AA118

IPRS Băneasa

Year
Unknown
Category
Components
Type
Diodes
Documentation score
1/5
Last edited
09 OCT 2026

Specifications

Material
Ge
Type
signal and switching diode
Peak reverse voltage (VRM)
100 V
Max. average forward current (IFAVM)
0.02 A
Forward voltage (VF)
1.5 V
Marking on the case
rings black–orange („negru-portocaliu”), read from C to A
Package
DO-7 (F-2), glass

Sources: [1]

Description

The AA118 is a germanium signal and switching diode made in Romania by IPRS Băneasa, listed in the Agenda radioelectronistului (2nd edition, 1989) with a peak reverse voltage VRM of 100 V [1]. The package drawing is in the Gallery.

The code is printed „AA 118”. The table gives: peak reverse voltage VRM 100 V, average forward current IFAV 20 mA, forward voltage VF 1.5 V at IF = 5 mA; its rings are black–orange („negru-portocaliu”), read from the cathode to the anode [1].

Coded as (Pro Electron system) [2]:

Part Meaning
A base material with an activation energy of 0.6–1 eV, e.g. germanium (0.67 eV)
A low-power signal diode
118 serial number: three digits (100–999), for components for general use

Gallery

IPRS Băneasa AA118: DO-7 (F-2) glass package, diode, with 1…3 coloured rings („1…3 inele colorate”); C = cathode, A = anodeNo image available
DO-7 (F-2) glass package, diode, with 1…3 coloured rings („1…3 inele colorate”); C = cathode, A = anode

Documents

No documents available yet.

References

  1. [1]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, section 27.3.2 „Diode pentru semnale de mică putere produse în RSR” (producător: IPRS-Băneasa), „Diode cu germaniu, de semnal și comutație”, p. 511
  2. [2]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, section 26.2 „Sistemul european PRO ELECTRON”, pp. 479–480