General view

CTS-N

IPRS Băneasa

Year
Unknown
Category
Components
Type
Capacitors
Documentation score
1/5
Last edited
16 OCT 2026

Specifications

Type
solid tantalum, non-polarised
Standard
CEI 325
Capacitance (Cn)
4.7…150 µF
Capacitance, min
4.7 µF
Capacitance, max
150 µF
Tolerance
±20 %
Rated voltage (Un)
10 V
Dissipation factor (tan δ)
≤ 0.08 (Cn < 100 µF, 50 Hz), ≤ 0.1 (Cn < 100 µF, 100 Hz), ≤ 0.1 (Cn ≥ 100 µF, 50 Hz), ≤ 0.15 (Cn ≥ 100 µF, 100 Hz), at +25 °C
Leakage current (If)
≤ 0.04·CnUn [µF·V] (+25 °C)
Climatic category
55/085/21
Package
tubular, axial leads
Case size
5 different values (see Variants)
Diameter (D)
5–8 mm (see Variants)
Length (L)
16–38 mm (see Variants)
Lead diameter (d)
0.5–1 mm (see Variants)
Application
general use, at low frequencies and low voltages (professional circuits)

Sources: [1][2]

Variants (5)

CTS-N (case size A)4.7; 6.8 µF4.76.8A5160.5
CTS-N (case size B)10; 15 µF1015B6240.8
CTS-N (case size C)22 µF2222C6280.8
CTS-N (case size D)33; 47 µF3347D8281
CTS-N (case size E)68; 100; 150 µF68150E8381

Click a column heading to sort. „+” adds a variant to the comparison (CTS-N).

Description

The CTS-N is a series of non-polarised solid-electrolyte tantalum capacitors with axial leads, rated 10 V DC, made to CEI 325 for general use at low frequencies and low voltages in professional circuits [1]. The Agenda radioelectronistului (2nd edition, 1989) gives no codes for it, only five case sizes, A to E, with 4.7–150 µF; the page lists one row per case size [1].

The Agenda does not say which works made the series: for the whole section on capacitors made in Romania it lists IPEE Electroargeș of Curtea de Argeș, Tehnoton of Iași, IIS Electronica of Bucharest and IPRS Băneasa as producers, and the 1st edition (1983) names only the first three [3][4]. It is listed here as made by IPRS Băneasa.

Coded as [3]:

Part Meaning
CTS solid-electrolyte tantalum capacitor („condensator cu tantal, cu electrolit solid”)
N construction variant: non-polarised („nepolarizat”)

The book gives no technological family or package code for this series [1].

The capacitors are marked in clear; the book’s example „CTS—M 20.05—33/6,3” gives the code, the nominal capacitance (33 µF) and the rated voltage (6.3 V) [3].

The 2nd edition prints the rated voltage as „10 V_ce” (1st edition: Vcc) and the tolerance with a smudged 2; the 1st edition has the same values [1][2].

Dimensions in mm (fig. 20.49): length L, diameter D and lead diameter d from the table; the body has a groove of radius R = 0.8 (sizes A, B) or 1.5 (C, D, E); leads 35 ± 5 mm long on each side [1].

Gallery

IPRS Băneasa CTS-N: Drawing (fig. 20.49)No image available
Drawing (fig. 20.49)

Documents

No documents available yet.

References

  1. [1]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, section 20.4.3.17 „Condensatoare cu tantal nepolarizate, seria CTS-N”, pp. 290–291
  2. [2]N. Drăgulănescu – „Agenda radioelectronistului”, 1st edition, Editura Tehnică, 1983, section 3.5.4.3.17 „Condensatoare cu tantal nepolarizate, seria CTS-N”, pp. 260–261
  3. [3]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, sections 20.4 „Condensatoare produse în R.S.R.” (p. 248) and 20.4.3.1 „Codificare – marcare (în clar)” (p. 273)
  4. [4]N. Drăgulănescu – „Agenda radioelectronistului”, 1st edition, Editura Tehnică, 1983, sections 3.5.4 „Condensatoare produse în R.S.R.” (p. 218) and 3.5.4.3.1 „Codificare – marcare (în clar)” (p. 243)
  5. [5]N. Millea, I. Constantinescu (coord.) – „Un secol de electronică în România”, Editura Academiei Române, 2020, section VIII.1.2.6, pp. 408–411