CTF 2000
IPRS Băneasa
- Also known as
- CTF 2000 H
- Manufacturer
- IPRS Băneasa
- Country
- Romania
- Year
- Unknown
- Category
- Components
- Type
- Capacitors
- Documentation score
- 1/5
- Last edited
- 16 OCT 2026
Specifications
- Type
- ceramic trimmer
- Capacitance (Cn)
- 0.5…15 pF
- Capacitance, min
- 0.5 pF
- Capacitance, max
- 15 pF
- Rated voltage (Un)
- 250 V
- Dissipation factor (tan δ)
- ≤ 0.2 % (1 MHz)
- Temperature coefficient (αC)
- (+150 ± 150)·10⁻⁶/°C, (+100 ± 100)·10⁻⁶/°C (see Variants)
- Climatic category
- 25/081/21 (as printed)
- Package
- tubular trimmer
- Number of turns
- 3.5–8 (see Variants)
- Rotation torque
- 50…400 gf·cm
- Length (L)
- 9.5–11 mm (see Variants)
- Application
- radio-frequency circuits, up to 250 MHz
Variants (4)
| Note | Compare | |||||||
|---|---|---|---|---|---|---|---|---|
| CTF 2001 H | 0.5…3 pF | 0.5 | 3 | (+150 ± 150)·10⁻⁶/°C | 3.5 | 9.5 | ||
| CTF 2002 H | 1…4 pF | 1 | 4 | (+150 ± 150)·10⁻⁶/°C | 3.5 | 9.5 | ||
| CTF 2003 H | 2…12 pF | 2 | 12 | (+150 ± 150)·10⁻⁶/°C | 8 | 11 | ||
| CTF 2004 U | 3…15 pF | 3 | 15 | (+100 ± 100)·10⁻⁶/°C | 3.5 | 9.5 | 1st edition: CTF 2004 H, +100 ± 400 |
Click a column heading to sort. „+” adds a variant to the comparison (CTF 2000).
Description
The CTF 2000 is a series of tubular ceramic trimmer capacitors for high frequency, rated 250 V DC, for radio-frequency circuits up to 250 MHz, with an adjustment precision of 0.05 pF [1]. The Agenda radioelectronistului (2nd edition, 1989) lists four codes, CTF 2001 H to CTF 2004 U, from 0.5…3 pF to 3…15 pF, with their temperature coefficient, number of turns and length; the 1st edition (1983) calls the series CTF 2000 H [1][2].
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; Un secol de electronică în România says that the ceramic capacitor line of IPRS passed to IPEE Curtea de Argeș in 1973 [5].
In the book’s list of codes CTF(H) stands for tubular ceramic trimmer capacitors for high frequency; it explains the digits only with the example CT 10.11 [3].
In the 1st edition the fourth code is CTF 2004 H with +100 ± 400·10⁻⁶/°C, in the 2nd CTF 2004 U with +100 ± 100·10⁻⁶/°C [2][1]. Both editions print the climatic category as 25/081/21 [1][2].
Rated voltages are DC („Vcc”). Dimensions in mm (fig. 20.67): length L ± 0.5 from the table, A = 14 ± 1, body Ø 8 and 5.6, screw Ø 3 [1].
Gallery
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References
- [1]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, section 20.4.5.6 „Condensatoare ceramice ajustabile tubulare, seria CTF 2000”, p. 304
- [2]N. Drăgulănescu – „Agenda radioelectronistului”, 1st edition, Editura Tehnică, 1983, section 3.5.4.5.6 „Condensatoare ceramice ajustabile tubulare, seria CTF 2000 H”, p. 273
- [3]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, sections 20.4 „Condensatoare produse în R.S.R.” (p. 248) and 20.4.5.1 „Codificare – marcare (în clar)” (p. 301)
- [4]N. Drăgulănescu – „Agenda radioelectronistului”, 1st edition, Editura Tehnică, 1983, sections 3.5.4 „Condensatoare produse în R.S.R.” (p. 218) and 3.5.4.5.1 „Codificare – marcare (în clar)” (p. 270)
- [5]N. Millea, I. Constantinescu (coord.) – „Un secol de electronică în România”, Editura Academiei Române, 2020, section VIII.1.2.6, pp. 408–411