RCG, RMG
IPEE Curtea de Argeș
- Manufacturer
- IPEE Curtea de Argeș
- Country
- Romania
- Year
- Unknown
- Category
- Components
- Type
- Resistors
- Documentation score
- 1/5
- Last edited
- 16 OCT 2026
Specifications
- Type
- carbon film (RCG), nickel film (RMG)
- Standard
- STAS 7668-78
- Resistance (Rn)
- 1 Ω…10 MΩ
- Resistance, min
- 1 Ω
- Resistance, max
- 10000000 Ω
- Tolerance
- ±5/10/20 %, ±2.5/5/10/20 % (see Variants)
- Value series
- E24, E48 (see Variants)
- Limit voltage (Unlim)
- 250–700 V (see Variants)
- Temperature coefficient
- ±15·10⁻⁴/°C (1 Ω < Rn ≤ 10 Ω and 1 MΩ < Rn ≤ 10 MΩ), ±10·10⁻⁴/°C (0.1 MΩ < Rn ≤ 1 MΩ), ±5·10⁻⁴/°C (10 Ω < Rn ≤ 0.1 MΩ)
- Noise factor (F)
- < 0.5 µV/V (1 Ω < Rn ≤ 330 Ω), < 1 µV/V (330 Ω < Rn ≤ 10 kΩ), < 3 µV/V (Rn > 10 kΩ)
- Climatic category
- 55/125/04
- Package
- cylindrical, axial leads
- Max. diameter (Dmax)
- 2.5–8.6 mm (see Variants)
- Max. length (Lmax)
- 7–34 mm (see Variants)
- Lead diameter (d)
- 0.6–1 mm (see Variants)
- Application
- general use, in electronic circuits without special requirements
Variants (13)
| Note | Compare | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| RMG-1025 (1…10 Ω) | 1…10 Ω | 1 | 10 | ±5/10/20 % | E24 | 250 | 2.5 | 7 | 0.6 | ||
| RMG-1025 (10…330 Ω) | 10…330 Ω | 10 | 330 | ±2.5/5/10/20 % | E48 | 250 | 2.5 | 7 | 0.6 | ||
| RCG-1025 | 330 Ω…1 MΩ | 330 | 1000000 | ±2.5/5/10/20 % | E48 | 250 | 2.5 | 7 | 0.6 | ||
| RMG-1050 (1…10 Ω) | 1…10 Ω | 1 | 10 | ±5/10/20 % | E24 | 350 | 4.1 | 13 | 0.8 | ||
| RMG-1050 (10…330 Ω) | 10…330 Ω | 10 | 330 | ±2.5/5/10/20 % | E48 | 350 | 4.1 | 13 | 0.8 | ||
| RCG-1050 (330 Ω…1 MΩ) | 330 Ω…1 MΩ | 330 | 1000000 | ±2.5/5/10/20 % | E48 | 350 | 4.1 | 13 | 0.8 | ||
| RCG-1050 (1…10 MΩ) | 1…10 MΩ | 1000000 | 10000000 | ±5/10/20 % | E24 | 500 | 4.1 | 13 | 0.8 | 2nd edition only | |
| RMG-1100 (1…10 Ω) | 1…10 Ω | 1 | 10 | ±5/10/20 % | E24 | 500 | 6.4 | 22.5 | 0.8 | ||
| RMG-1100 (10…330 Ω) | 10…330 Ω | 10 | 330 | ±2.5/5/10/20 % | E48 | 500 | 6.4 | 22.5 | 0.8 | ||
| RCG-1100 | 330 Ω…1 MΩ | 330 | 1000000 | ±2.5/5/10/20 % | E48 | 500 | 6.4 | 22.5 | 0.8 | ||
| RMG-1200 (1…10 Ω) | 1…10 Ω | 1 | 10 | ±5/10/20 % | E24 | 700 | 8.6 | 34 | 1 | ||
| RMG-1200 (10…330 Ω) | 10…330 Ω | 10 | 330 | ±2.5/5/10/20 % | E48 | 700 | 8.6 | 34 | 1 | ||
| RCG-1200 | 330 Ω…1 MΩ | 330 | 1000000 | ±2.5/5/10/20 % | E48 | 700 | 8.6 | 34 | 1 |
Click a column heading to sort. „+” adds a variant to the comparison (RCG, RMG).
Description
The RCG and RMG are type II film resistors with axial leads, RCG with a carbon film and RMG with a nickel film, made to STAS 7668-78 for general use [1][3]. The Agenda radioelectronistului (2nd edition, 1989) gives them in one table of 13 rows, in four sizes (codes 1025, 1050, 1100 and 1200): RMG from 1 to 330 Ω and RCG from 330 Ω to 10 MΩ, in the E6, E12, E24 and E48 series, with limit voltages of 250–700 V [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 |
|---|---|
| RCG | construction type: general-use resistor with a carbon film („rezistor de uz general cu peliculă din carbon”) |
| RMG | construction type: general-use resistor with a nickel film („… cu peliculă din nichel”) |
| 1 | package type („tipul capsulei”, 1…6) |
| 025, 050, 100, 200 | rated power: 0.25, 0.5, 1 and 2 W („puterea disipată nominală”) |
The book’s example of the code is „RCG 1 050 (…)”; the bracket stands for the constructive variant [3]. 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 [3].
The 1st edition (1983) has the same table without the RCG-1050 row for 1…10 MΩ (5/10/20 %, E24, 500 V) [2][1]. It gives the temperature coefficient as positive for RMG and negative for RCG; the 2nd edition prints „> 0” for both [2][1].
Value series in the table: the highest standard series of each row („seria normalizată maximă”). Dimensions in mm (fig. 16.2): maximum diameter Dmax, maximum length Lmax and lead diameter d from the table; leads at least 30 mm long [1].
Gallery
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References
- [1]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, section 16.3.2 „Rezistoare peliculare tip II, seriile RCG și RMG”, pp. 184–185
- [2]N. Drăgulănescu – „Agenda radioelectronistului”, 1st edition, Editura Tehnică, 1983, section 3.1.3.2 „Rezistoare peliculare tip II, seriile RCG și RMG”, pp. 153–154
- [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]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]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