K50-90

Aluminum electrolytic capacitor

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+7 (34147) 2-99-89

AZHAR.673541.018 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	100…680
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

All climate
(Isolated)

Temperate/cold climate
version (Nonisolated)

1 – Screw BM5-6g
2 – Washer 5.65
3 – Jumper for discharge
4 – Explosion proof valve
5 – Insulating gasket
6 – Enameling
7 – Insulating tube

D, mm	A, mm
35	12.5
50	22

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)	10 000	10^-5
Light mode (0.5UR, Tenv=60 °С)	50 000	10^-6
Light mode (0.5UR, Tenv=50 °С)	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	tg δ, %, 25°C, 50 Hz, max	ILEAK, µA, 25°C, after 5 min., max	Mass, g, max	Z, Ohm, 25°C, 100kHz, max	IR, А, 85°C, 50 Hz, max
250	680	35x60	25	1 379	150	0.95	0.7
250	680	50х45		1 379	120	0.95	0.7
350	150	35x40		608	85	2.30	1.2
	220	35x45		794	120	1.35	1.3
	330	35x50		1 053	140	0.75	1.4
	470	35x60		1 348	150		1.6
	470	50x45		1 348	150		1.6
400	100	35x40		504	85	5.80	1.7
	150	35x45		667	120	3.10	1.8
	220	35x50		871	140	1.80	1.9
	330	35x60		1 156	150	1.55	2.2
	330	50x45		1 156	150	1.55	2.2
	470	35x80		1 480	160	0.90	2.8
	470	50x50		1 480	185	0.90	2.8
450	100	35x45		546	120	6.55	1.3
	150	35x50		724	140	3.50	1.4
	220	35x60		946	150	3.40	1.6
	220	50x45		946	150	3.40	1.6
	330	35х80		1 255	160	1.75	2.0
	330	50х50		1 255	185	1.75	2.0

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”)