Aluminum electrolytic capacitor
K50-90

AZHAR.673541.018 TU

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.




Main parameters
NameValue
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 and temperate/cold climate version (Isolated)

Temperate/cold climate version (Nonisolated)

1 - Isolation sleeve
2 - Explosion-proof valve

D, mm A, mm
35 12.5
50 22



Capacitors reliability
Reliability
Operation modes
Minimal nonfailure operating time, tλ, 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
50x45 120
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
50x45
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
50x45
470 35x80 1 480 160 0.90 2.8
50x50 185
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
50x45
330 35x80 1 255 160 1.75 2.0
50x50 185



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")

KT - IR correction factor versus temperature
Tenv, °C 25 40 50 60 70 85
KT 1.43 1.37 1.31 1.25 1.17 1.0



KF - IR correction factor versus frequency
F, Hz 50 100 300 600 1 000 10 000 ≥50 000
KF 1 1.25 1.5 1.63 1.69 1.88 2.0



Example of reference designation for ordering:

CAPACITOR K50-90 - 450V - 330µF (+50 -20)% (35x80) I AZHYAR.673541.018 TU

CAPACITOR K50-90 - 250V - 680µF ±20% (50x45) I B AZHYAR.673541.018 TU

CAPACITOR K50-90 - 450V - 220µF ±20% (50x45) AZHYAR.673541.018 TU

CAPACITOR K50-90 - 400V - 470µF ±20% (50x50) B AZHYAR.673541.018 TU