IPRS Băneasa EG 31.00

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Specifications

Type

aluminium electrolytic, high capacitance, single or double

Standard

STAS 7675-73

Capacitance (Cn)

4.7…1000 µF

Capacitance, min

4.7 µF

Capacitance, max

1000 µF

Tolerance

−20…+50 %

Rated voltage (Un)

25–450 V (see Variants)

Dissipation factor (tan δ)

≤ 0.15 (Un > 100 V), ≤ 0.2 (Un ≤ 100 V), at 100 Hz, 20 °C

Leakage current (If)

≤ 0.1·CnUn [µF·V] + 100 µA (CnUn ≤ 1000), + 300 µA (CnUn > 1000), at 20 °C

Climatic category

10/070/04

Package

aluminium tube (cathode), axial tag terminals

Diameter (D)

14–35 mm (see Variants)

Length (L)

24–70 mm (see Variants)

Lead length (l)

22–33 mm (see Variants)

Application

filtering in medium- or high-voltage rectifiers

Variants (38)

								Note
EG 31.27 (25 V)	10; 25 µF	10	25	25	14	24	22	code damaged in the 2nd edition („EG 31.:7”); read from the 1st
EG 31.27 (50 V)	10; 25 µF	10	25	50	14	24	22
EG 31.27 (100 V)	10 µF	10	10	100	14	24	22
EG 31.33 (25 V)	50 µF	50	50	25	16	25	—	l printed „22/33”
EG 31.33 (50 V)	50 µF	50	50	50	16	25	—	l printed „22/33”
EG 31.33 (300 V)	8 µF	8	8	300	16	25	—	l printed „22/33”
EG 31.33 (350 V)	8; 4.7 µF	4.7	8	350	16	25	—	l printed „22/33”
EG 31.44 (25 V)	100 µF	100	100	25	18	31	33
EG 31.44 (100 V)	25 µF	25	25	100	18	31	33
EG 31.45	100 µF	100	100	50	18	39	33
EG 31.52	200 µF	200	200	25	20	40	33
EG 31.53 (100 V)	50 µF	50	50	100	20	42	33
EG 31.53 (200 V)	16; 25 µF	16	25	200	20	42	33
EG 31.53 (250 V)	16; 25 µF	16	25	250	20	42	33
EG 31.53 (300 V)	16 µF	16	16	300	20	42	33
EG 31.53 (350 V)	16 µF	16	16	350	20	42	33
EG 31.53 (450 V)	8 µF	8	8	450	20	42	33
EG 31.58 (50 V)	200 µF	200	200	50	25	42	33
EG 31.58 (100 V)	100 µF	100	100	100	25	42	33
EG 31.58 (200 V)	32; 50; (16 + 16) µF	16	50	200	25	42	33
EG 31.58 (250 V)	32; 50; (16 + 16) µF	16	50	250	25	42	33
EG 31.58 (300 V)	25 µF	25	25	300	25	42	33
EG 31.58 (350 V)	25 µF	25	25	350	25	42	33
EG 31.58 (450 V)	16; (8 + 8) µF	8	16	450	25	42	33
EG 31.62 (25 V)	1000 µF	1000	1000	25	29	42	33
EG 31.62 (100 V)	200 µF	200	200	100	29	42	33
EG 31.62 (250 V)	100; (32 + 32) µF	32	100	250	29	42	33
EG 31.62 (300 V)	32; 50; (16 + 16) µF	16	50	300	29	42	33
EG 31.62 (350 V)	32; 50; (16 + 16) µF	16	50	350	29	42	33
EG 31.62 (450 V)	25; 32; (16 + 16) µF	16	32	450	29	42	33
EG 31.62 (150 V)	(50 + 50) µF	50	50	150	29	42	33
EG 31.63 (450 V)	50 µF	50	50	450	29	59	33
EG 31.63 (300 V)	(32 + 32) µF	32	32	300	29	59	33
EG 31.63 (350 V)	(32 + 32) µF	32	32	350	29	59	33
EG 31.64 (70 V)	500 µF	500	500	70	29	70	33
EG 31.64 (300 V)	100; (50 + 50) µF	50	100	300	29	70	33
EG 31.64 (350 V)	100; (50 + 50) µF	50	100	350	29	70	33
EG 31.70	(32 + 32); (50 + 50) µF	32	50	450	35	70	33

Click a column heading to sort. „+” adds a variant to the comparison (EG 31.00).

Description

The EG 31.00 is a series of high-capacitance aluminium electrolytic capacitors, single or double (two identical sections), with tag terminals, made to STAS 7675-73 for filtering in medium- or high-voltage rectifiers; the common cathode is connected to the aluminium tube, which has its own terminal [1]. The Agenda radioelectronistului (2nd edition, 1989) lists 11 package codes, EG 31.27 to EG 31.70, with 4.7–1000 µF at 25–450 V; values written „(a + b)” are double capacitors [1]. The peak voltage is 1.15 Un (Un ≤ 100 V), 1.1 Un (Un > 100 V) [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; Un secol de electronică în România says that IPRS made seven types of electrolytic capacitors, from 1 µF to 10,000 µF and from 3 V to 450 V [5].

Coded as [3]:

Part	Meaning
EG	construction type: electrolytic capacitor (of high capacitance)
31	technological family („familia tehnologică”)
27…70	package code („codul capsulei”)

The capacitors are marked in clear; the book’s example „EG 52.43—22/16” gives the code, the nominal capacitance (22 µF) and the rated voltage (16 V) [3].

In the 2nd edition the code EG 31.27 is damaged („EG 31.:7”) and the tag length of EG 31.33 reads like „22/35”; the code and the „22/33” are read from the 1st edition [1][2]. The 1st edition prints the tolerance line twice [2].

Rated voltages are DC („Vcc”). Dimensions in mm (fig. 20.42): D ± 0.5, L ± 1 and the tag length l from the table; the double version has two tags 13 mm apart at one end [1].

References

[1]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, section 20.4.3.10 „Condensatoare electrolitice de mare capacitate seria EG 31.00”, pp. 281–282

[2]N. Drăgulănescu – „Agenda radioelectronistului”, 1st edition, Editura Tehnică, 1983, section 3.5.4.3.10 „Condensatoare electrolitice de mare capacitate, seria EG 31.00”, pp. 251–252

[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]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]N. Millea, I. Constantinescu (coord.) – „Un secol de electronică în România”, Editura Academiei Române, 2020, section VIII.1.2.6, pp. 408–411

EG 31.00

Specifications

Variants (38)

Description

Gallery

Documents

References