K50-91

Aluminum electrolytic capacitor

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AZHYAR.673541.019 TU

Are highly-reliable polar, radial screw capacitors. Polar sealed radial screw capacitor type in isolated and non-isolated case is used for operation in direct current and ripple current circuits, secondary power sources and converter equipment.

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Main parameters

Name	Value
Rated voltage, V	250…450
Rated capacitance, µF	470…15 000
Temporary overvoltage within 10 sec., V	1.15 UR (UR=250) 1.1 UR (UR>250)
Capacitance tolerance (25 °C, 50 Hz), %	+50…-20; ±20
Maximum operating temperature Tenv, °C	+85
Minimal operating temperature Tenv, °C	-40

Capasitor physical configuration

Variant A
(fastening with a clamp)

Isolated, non-isolated, with
moisture-resistant coatings

Fig. 1

Fig. 2

Fig. 3

Variant B
(with end pin)

Isolated,
non-isolated

Fig. 4

1 – Screw V.M5-6gx8.36.019 GOST 17473-80
2 – Washer 5.65G 019 GOST 6402-70
3 – Explosion proof valve
4 – Jumper for discharge
5 – Clamp
6 – Nut М12-6Н.04.016 GOST 2526-70
7 – Butt pin

Capacitors dimensions

Figure	1		2			2,3,4
D, mm	35		50			65			76
H, mm	80	105	50	60	80	80	105	110	70	80	120	155	170
A, mm	12.5		22			28.5			32

Overall and fitting dimensions of a capacitor clamp

1 – clamp
2 – screw BM4-6gx12.48.019 GOST 17473
3 – washer A4,0.01.08 kp.019 GOST 11371
4 – nut M4-6N.04.019 GOST 5916

D	D*	L*	Mass, g, max
66.2±0.2	78.6	88.6	59.7
77.2±0.2	89.6	99.6	69.6

Capacitors reliability

Reliability Operation modes	Minimal nonfailure operating time, t_λ, hours	Capacitor failure rate, λ, 1/hour, max
Maximum-permissible mode (UR, Tenv=85 °С) for capacitors ø 35mm and capacitors ø 50mm, H = 50; 60mm	10 000	10^-5
Maximum-permissible mode (UR, Tenv=85 °С) for capacitors ø 50…76mm; H = 70…170mm	15 000	10^-5
Light mode (0.5UR, Tenv=60 °С) for capacitors of all dimensions	50 000	10^-6
Light mode (0.5UR, Tenv=50 °С) for capacitors of all dimensions	100 000	10^-7
Storageability Gamma-rated time of capacitor storageability Tcy at y=99.5%, years, min	25

Dimension sizes and capacitor electric parameters value when delivered

UR, V	CR, µF	Size DxH, mm	A, mm	tg δ, %, 25°C, 50 Hz, max	ILEAK, µA, 25°C, after 5 min., max	Mass, g, max	Z*, Ohm, 25°C, max	IR, А, 85°C, 50 Hz, max
250	1 000	35x80	12.5	25	1 840	160	0.50	0.9
250	1 000	50x50	22.0	25	1 840	185	0.50	0.9
250	1 500	35x105	12.5	25	2 430	195	0.30	1.2
250	1 500	50x60	22.0	25	2 430	230	0.30	1.2
250	2 200	50x80	22.0	25	3 170	300	0.20	1.7
250	3 300	65x80	28.5	25	4 200	450	0.15	2.7
250	4 700	65x105	28.5	25	5 360	610	0.08	3.4
250	6 800	65x110	28.5	25	6 930	750	0.05	3.4
250	10 000	76.1x120	32.0	25	9 070	1 050	0.03	4.8
250	15 000	76.1x155	32.0	25	12 030	1 150	0.02	5.9
350	680	35x80	12.5	25	1 780	160	0.45	2.0
350	680	50х50	22.0	25	1 780	185	0.45	2.0
350	1 000	35x105	12.5	25	2 320	195	0.30	2.5
350	1 000	50х60	22.0	25	2 320	230	0.30	2.5
350	1 500	50x80	22.0	25	3 070	300	0.10	3.6
350	2 200	65x80	28.5	25	4 000	450	0.08	5.8
350	3 300	65x105	28.5	25	5 300	610	0.05	7.3
350	4 700	65x110	28.5	25	6 780	750	0.03	7.3
350	6 800	76.1x120	32.0	25	8 760	1 050	0.03	10.3
350	10 000	76.1x155	32.0	25	11 470	1 150	0.02	12.7
400	680	35х105	12.5	25	1 950	195	0.55	3.4
400	680	50х60	22.0	25	1 950	230	0.55	3.4
400	1 000	50x80	22.0	25	2 540	300	0.35	3.6
400	1 500	65x80	28.5	25	3 370	450	0.15	8.0
400	2 200	76.1x70	32.0	25	4 390	600	0.10	9.0
400	3 300	76.1x80	32.0	25	5 810	650	0.05	9.7
400	4 700	76.1x120	32.0	25	7 440	1 050	0.04	13.2
400	6 800	76.1x155	32.0	25	9 620	1 150	0.03	16.8
450	470	35х105	12.5	25	1 640	195	1.10	2.5
450	470	50х60	22.0	25	1 640	230	1.10	2.5
450	680	50x80	22.0	25	2 120	300	0.75	3.8
450	1 000	65x80	28.5	25	2 760	450	0.65	6.1
450	1 500	76.1x70	32.0	25	3 650	600	0.20	7.0
450	2 200	76.1x80	32.0	25	4 760	610	0.10	7.2
450	2 200	65х105	28.5	25	5 300	650	0.10	7.2
450	3 300	76.1x120	32.0	25	6 310	1 050	0.08	10.8
450	4 700	76.1x155	32.0	25	8 070	1 150	0.06	13.3
450	6 800	76.1x170	32.0	25	10 440	1 250	0.04	14.0

* Capacitor impedance Z is measured at frequency 100 kHz for capacitors CR ≤ 1 000 µF, and at frequency 10 kHz for capacitors CR > 1 000 µF

Ripple current effective value
versus temperature and frequency can be found from the formula IRO = IR x KT x KF, where

IR– allowable ripple current at 85 °C, 50 Hz (See Table “Capacitor electric parameters”)