General view

HVR 3050

IPEE Curtea de Argeș

Also known as
HVR
Year
Unknown
Category
Components
Type
Resistors
Documentation score
1/5
Last edited
16 OCT 2026

Specifications

Type
high-voltage resistor
Resistance (Rn)
1…100 MΩ
Resistance, min
1000000 Ω
Resistance, max
100000000 Ω
Tolerance
±5 %, ±10 %
Value series
E12, E24
Limit voltage (Unlim)
4000 V
Temperature coefficient
±250, ±100 ·10⁻⁶/°C
Noise factor (F)
< 3 µV/V
Insulation resistance (Riz)
≥ 10¹⁰ Ω (at 500 V DC)
Climatic category
55/155/56
Package
flat, radial leads
Max. diameter (Dmax)
12.5 mm
Max. length (Lmax)
30 mm
Lead diameter (d)
0.64 mm
Lead spacing (d)
27.9 mm
Application
professional electronic circuits

Sources: [1][2]

Description

The HVR 3050 is a high-voltage resistor with radial leads, from 1 to 100 MΩ in the E12 and E24 series, with a limit voltage of 4 kV, for professional electronic circuits [1].

The Agenda radioelectronistului names IPEE Electro-Argeș of Curtea de Argeș as the producer of all the resistors in its section on resistors made in Romania, in both editions [3][4]. Un secol de electronică în România says that the works, founded in 1972 as ICEP, took over the resistor lines that IPRS Băneasa made under a Thomson-CSF licence: the carbon resistors in 1973 and the wire-wound resistors in 1974 [5].

Coded as [3]:

Part Meaning
HVR construction type: high-voltage resistor („rezistor pentru înaltă tensiune”)
3 package type („tipul capsulei”, 1…6)
050 rated power: 0.5 W

Romanian resistors are generally marked in clear, with the series code, the nominal value (100 = 100 Ω, 1 K = 1 kΩ, 1 M = 1 MΩ), the tolerance and, for the HVR series, the limit voltage in kV [3].

The 1st edition (1983) calls the series HVR, gives the same data and prints the value series as „E12 și E21” [2]. The 2nd edition prints the maximum lead length as „max = 30 mm”, without the letter l (1st edition: lmax = 30 mm) [1][2].

Dimensions in mm (fig. 16.5): Lmax = 30, Dmax = 12.5, maximum lead length lmax = 30, maximum lead spacing dmax = 27.9, leads Ø 0.64 [1][2].

Gallery

IPEE Curtea de Argeș HVR 3050: Drawing (fig. 16.5)No image available
Drawing (fig. 16.5)

Documents

No documents available yet.

References

  1. [1]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, section 16.3.5 „Rezistoare pentru înaltă tensiune, tip HVR 3050”, pp. 186–187
  2. [2]N. Drăgulănescu – „Agenda radioelectronistului”, 1st edition, Editura Tehnică, 1983, section 3.1.3.5 „Rezistoare pentru înaltă tensiune, seria HVR”, pp. 155–156
  3. [3]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, section 16.3 „Rezistoare produse în R.S.R.”, 16.3.1 „Codificare – marcare”, p. 184
  4. [4]N. Drăgulănescu – „Agenda radioelectronistului”, 1st edition, Editura Tehnică, 1983, section 3.1.3 „Rezistoare produse în R.S.R.”, 3.1.3.1 „Codificare – marcare”, p. 153
  5. [5]N. Millea, I. Constantinescu (coord.) – „Un secol de electronică în România”, Editura Academiei Române, 2020, sections VIII.1.2.6 and VIII.2, pp. 410 and 434–435