Electronica P rotary carbon-film potentiometers

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Specifications

Type

rotary, carbon film

Standard

STAS 9614/2-74

Construction

8 different values (see Variants)

Resistance (Rn)

100 Ω…5 MΩ

Resistance, min

100 Ω

Resistance, max

5000000 Ω

Law (taper)

lin, log

Tolerance

±20 % (Rn ≤ 250 kΩ), ±30 % (Rn > 250 kΩ)

Rated power (Pdn)

0.1–0.25 W (see Variants)

Rated power, log

0.05–0.125 W (see Variants)

Limit voltage (Unlim)

100–250 V (see Variants)

Limit voltage, log

70–200 V (see Variants)

Insulation voltage (Uiz)

500–750 V (see Variants)

Switch

0.5 A / 250 V, 0.5 A (1 A) / 250 V (see Variants)

Tandem tracking

≤ 4 dB, ≤ 1 dB (see Variants)

Shaft lengths (L)

5 different values (see Variants)

Shaft length, min

12–32 mm (see Variants)

Shaft length, max

32–80 mm (see Variants)

Mechanical endurance

10 000…25 000 operations

Mechanical endurance, min

10000 operations

Climatic category

10/070/21

Marking

in clear

Application

general use

Variants (23)

														Note
P-32721	single	lin 100 Ω…5 MΩ; log 1 kΩ…1 MΩ	5000000	0.25	0.125	250	200	—	—	—	16, 20, 25, 32, 40, 50, 63, 80 mm	16	80	fig. 17.1 a; versions —, A, B, C, D, E, F; p = 12 mm (—, A, B), 5 (C), 14 (D), 8 (E), 10 (F)
P-32722	single, with switch	lin 100 Ω…5 MΩ; log 1 kΩ…1 MΩ	5000000	0.25	0.125	250	200	750	—	—	16, 20, 25, 32, 40, 50, 63, 80 mm	16	80	fig. 17.1 b; p = 12 mm (—, A, B), 5 (C), 14 (D), 8 (E), 10 (F)
P-32725	tandem	lin 100 Ω…5 MΩ; log 1 kΩ…1 MΩ	5000000	0.25	0.125	250	200	750	—	≤ 4 dB	16, 20, 25, 32, 40, 50, 63, 80 mm	16	80	fig. 17.1 c; versions —, A
P-32728	single	lin 100 Ω…5 MΩ; log 1 kΩ…1 MΩ	5000000	0.25	0.125	250	200	750	—	—	16, 20, 25, 32, 40, 50, 63, 80 mm	16	80	fig. 17.1 d (—), e (A); versions —, A; A = without mounting device
P-32729	single, with switch	lin 100 Ω…5 MΩ; log 1 kΩ…1 MΩ	5000000	0.25	0.125	250	200	750	—	—	16, 20, 25, 32, 40, 50, 63, 80 mm	16	80	fig. 17.1 f (—), g (A); versions —, A; A = without mounting device
P-32730	tandem	lin 100 Ω…5 MΩ; log 1 kΩ…1 MΩ	5000000	0.25	0.125	250	200	750	—	≤ 4 dB	16, 20, 25, 32, 40, 50, 63, 80 mm	16	80	fig. 17.1 h (—), i (A); versions —, A
P-32844	single	lin 100 Ω…5 MΩ; log 1 kΩ…1 MΩ	5000000	0.25	0.125	250	200	750	—	—	16, 20, 25, 32, 40, 50, 63, 80 mm	16	80	fig. 17.1 j
P-36087	single, with switch	lin 100 Ω…5 MΩ; log 1 kΩ…1 MΩ	5000000	0.25	0.125	250	200	750	—	—	16, 20, 25, 32, 40, 50, 63, 80 mm	16	80	fig. 17.1 k
P-32723	double	lin 100 Ω…5 MΩ; log 1 kΩ…1 MΩ	5000000	0.25	0.125	250	200	750	—	—	32, 40, 50, 63, 80 mm	32	80	fig. 17.1 l
P-32724	double, with switch	lin 100 Ω…5 MΩ; log 1 kΩ…1 MΩ	5000000	0.25	0.125	250	200	750	—	—	32, 40, 50, 63, 80 mm	32	80	fig. 17.1 m (A); versions —, A; p = 12 mm (—), 14 (A)
P-32727 (with commutator)	single, with commutator	lin 100 Ω…5 MΩ; log 1 kΩ…1 MΩ	5000000	0.25	0.125	250	200	750	—	—	20, 25, 32, 40, 50, 63, 80 mm	20	80	fig. 17.1 n; code printed P-32727 twice in the 2nd edition; the 1st edition gives this type as P-32726
P-32727 (with switch and commutator)	single, with switch and commutator	lin 100 Ω…5 MΩ; log 1 kΩ…1 MΩ	5000000	0.25	0.125	250	200	750	—	—	20, 25, 32, 40, 50, 63, 80 mm	20	80	fig. 17.1 o
P-32838	single	lin 100 Ω…1 MΩ; log 1 kΩ…1 MΩ	1000000	0.1	0.05	150	100	500	—	—	12, 16, 20, 25, 32 mm	12	32	fig. 17.1 p
P-32897	single	lin 100 Ω…1 MΩ; log 1 kΩ…1 MΩ	1000000	0.1	0.05	150	100	500	—	—	12, 16, 20, 25, 32 mm	12	32	fig. 17.1 q; versions —, A, B, C, D; p = 10 mm (—), 6 (A, C), 5 (B), 8 (D)
P-32899	single, with switch	lin 100 Ω…1 MΩ; log 1 kΩ…1 MΩ	1000000	0.1	0.05	150	100	500	0.5 A / 250 V	—	12, 16, 20, 25, 32 mm	12	32	fig. 17.1 r
P-32961	single	lin 100 Ω…1 MΩ; log 1 kΩ…1 MΩ	1000000	0.1	0.05	150	100	500	—	—	12, 16, 20, 25, 32 mm	12	32	fig. 17.1 s
P-32962	single, with switch	lin 100 Ω…1 MΩ; log 1 kΩ…1 MΩ	1000000	0.1	0.05	150	100	500	0.5 A / 250 V	—	12, 16, 20, 25, 32 mm	12	32	fig. 17.1 t
P-34179	single, with switch	lin 100 Ω…1 MΩ; log 1 kΩ…1 MΩ	1000000	0.1	0.05	150	100	500	0.5 A (1 A) / 250 V	—	12, 16, 20, 25, 32 mm	12	32	fig. 17.1 u
P-34180	single, with switch	lin 100 Ω…1 MΩ; log 1 kΩ…1 MΩ	1000000	0.1	0.05	150	100	500	0.5 A (1 A) / 250 V	—	12, 16, 20, 25, 32 mm	12	32	fig. 17.1 v
P-34649	tandem	lin 100 Ω…1 MΩ; log 1 kΩ…1 MΩ	1000000	0.1	0.05	150	100	500	—	≤ 1 dB	12, 16, 20, 25, 32 mm	12	32	fig. 17.1 w; 1st edition: tandem tracking ≤ 4 dB
P-34598	PD1020	lin 100 Ω…5 MΩ; log 1 kΩ…1 MΩ	5000000	0.25	0.125	250	200	750	—	—	12, 15, 16, 20, 25, 32, 40 mm	12	40	fig. 17.1 x
P-32841	single	lin 100 Ω…1 MΩ; log 1 kΩ…1 MΩ	1000000	0.1	0.05	150	100	500	—	—	—	—	—	fig. 17.1 y; no shaft length given
P-32821	single, with switch	lin 100 Ω…1 MΩ; log 1 kΩ…1 MΩ	1000000	0.1	0.05	100	70	—	—	—	—	—	—	fig. 17.1 z; versions —, A, B; A = without switch; no insulation voltage and shaft length given

Click a column heading to sort. „+” adds a variant to the comparison (P rotary carbon-film potentiometers).

Description

The P rotary carbon-film potentiometers are the type II rotary potentiometers with a carbon film listed in the Agenda radioelectronistului (2nd edition, 1989), made to STAS 9614/2-74 for general use [1]. Its table gives 23 types – single, with a switch, tandem, double, with a commutator – from P-32721 to P-32821, linear (100 Ω to 5 MΩ) and logarithmic (1 kΩ to 1 MΩ), rated 0.25 or 0.1 W, with shaft lengths from 12 to 80 mm [1].

The Agenda radioelectronistului names IPEE Electro-Argeș of Curtea de Argeș and IIS Electronica of Bucharest as the producers of the potentiometers in its section on potentiometers made in Romania, in both editions, without saying which works made which type; they are listed here under Electronica [3][4]. Electronica românească. O istorie trăită, vol. I, says that Electronica imported in 1969 a production line for film potentiometers from Siemens (West Germany), and that it made single potentiometers with or without a mains switch, tandem and push-button potentiometers, defined by its internal norm NID 2195-67 [5].

The book does not explain the codes [1]. The letters after a code (—, A, B…) are versions with other dimensions p or without a mounting device or switch, as the table says [1].

The 1st edition (1983) has the same table, except that it gives the type with a commutator as P-32726 (the 2nd edition prints P-32727 for it and for the type with switch and commutator) and a tandem tracking of ≤ 4 dB for P-34649 (2nd edition: ≤ 1 dB) [2][1].

Resistance in the E6 series; lin = linear, log = logarithmic law. Rated power and limit voltage: the first value for the linear, the second for the logarithmic law. Dimensions in mm: shaft length L from the table; the other dimensions are in the drawings (fig. 17.1 a…z) [1].

References

[1]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, section 17.2.1.1 „Potențiometre rotative cu pelicula de carbon”, pp. 202–208

[2]N. Drăgulănescu – „Agenda radioelectronistului”, 1st edition, Editura Tehnică, 1983, section 3.2.2.1.1 „Potențiometre rotative cu pelicula de carbon”, pp. 166–175

[3]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, section 17.2 „Potențiometre și rezistențe semireglabile produse în R.S.R.”, p. 202

[4]N. Drăgulănescu – „Agenda radioelectronistului”, 1st edition, Editura Tehnică, 1983, section 3.2.2 „Potențiometre și rezistențe semireglabile produse în R.S.R.”, p. 166

[5]D. F. Lăzăroiu, N. Millea et al. – „Electronica românească. O istorie trăită”, vol. I, AGIR, section II.6 „Componente, subansamble și ansamble conexe”, p. 230, and II.6.3.2.1 „Potențiometre”, p. 267

P rotary carbon-film potentiometers

Specifications

Variants (23)

Description

Gallery

Documents

References