KU290…KU1490
IPRS Băneasa
- Also known as
- KU290, KU290R, KU490, KU490R, KU690, KU690R, KU1090, KU1090R, KU1290, KU1290R, KU1490, KU1490R, KU290-S, KU490-S, KU690-S, KU1090-S, KU1290-S, KU1490-S
- Manufacturer
- IPRS Băneasa
- Country
- Romania
- Year
- Unknown
- Category
- Components
- Type
- Diodes
- Documentation score
- 1/5
- Last edited
- 25 OCT 2026
Specifications
- Material
- Si
- Type
- rectifier diode
- Repetitive peak reverse voltage (VRRM)
- 200–1400 V (see Variants)
- Max. RMS forward current (IFRMSM)
- 140–275 A (see Variants)
- Max. average forward current (IFAVM)
- 90 A
- IFAVM given at
- TC = 90 °C
- Repetitive peak forward current (IFRM)
- 275 A
- Surge forward current (IFSM, 10 ms)
- 1800 A
- I²t
- 12000–16200 A²s (see Variants)
- Forward voltage (VF)
- 1.33 V
- VF measured at IF
- 275 A
- Threshold voltage (VF0)
- 1 V
- Slope resistance (rF)
- 0.75 mΩ
- Reverse current (IR)
- 20 mA, 20 mA (TJ = 150 °C) (see Variants)
- Max. junction temperature (Tj)
- 150 °C
- Package
- F-62m, B-27 (see Variants)
Variants (18)
| Note | Compare | ||||||
|---|---|---|---|---|---|---|---|
| KU290 | 200 | 140 | 16200 | 20 mA | F-62m | ||
| KU290R | 200 | 140 | 16200 | 20 mA | F-62m | reverse polarity | |
| KU490 | 400 | 140 | 16200 | 20 mA | F-62m | ||
| KU490R | 400 | 140 | 16200 | 20 mA | F-62m | reverse polarity | |
| KU690 | 600 | 140 | 16200 | 20 mA | F-62m | ||
| KU690R | 600 | 140 | 16200 | 20 mA | F-62m | reverse polarity | |
| KU1090 | 1000 | 140 | 16200 | 20 mA | F-62m | ||
| KU1090R | 1000 | 140 | 16200 | 20 mA | F-62m | reverse polarity | |
| KU1290 | 1200 | 140 | 16200 | 20 mA | F-62m | ||
| KU1290R | 1200 | 140 | 16200 | 20 mA | F-62m | reverse polarity | |
| KU1490 | 1400 | 140 | 16200 | 20 mA | F-62m | ||
| KU1490R | 1400 | 140 | 16200 | 20 mA | F-62m | reverse polarity | |
| KU290-S | 200 | 275 | 12000 | 20 mA (TJ = 150 °C) | B-27 | 1990 catalogue | |
| KU490-S | 400 | 275 | 12000 | 20 mA (TJ = 150 °C) | B-27 | 1990 catalogue | |
| KU690-S | 600 | 275 | 12000 | 20 mA (TJ = 150 °C) | B-27 | 1990 catalogue | |
| KU1090-S | 1000 | 275 | 12000 | 20 mA (TJ = 150 °C) | B-27 | 1990 catalogue | |
| KU1290-S | 1200 | 275 | 12000 | 20 mA (TJ = 150 °C) | B-27 | 1990 catalogue | |
| KU1490-S | 1400 | 275 | 12000 | 20 mA (TJ = 150 °C) | B-27 | 1990 catalogue |
Click a column heading to sort. „+” adds a variant to the comparison (KU290…KU1490).
Description
The KU290…KU1490 is a series of silicon rectifier diodes made in Romania by IPRS Băneasa, listed in the Agenda radioelectronistului (2nd edition, 1989) with a repetitive peak reverse voltage VRRM of 200–1400 V and a maximum average forward current of 90 A [1]. Its codes are in the Variants table; the package drawing is in the Gallery.
Each code also exists with R at the end (printed „(R)”); on the package drawing the stud is the cathode for the codes without R and the anode for the codes with R [1].
The I.P.R.S. Băneasa Full Line Condensed Catalog (1990) lists the KU290…KU1490-S (12 codes) among the „Standard rectifiers ( IFAVM < 100 A )” of its „Rectifiers” section [2]. The codes new on this page and the catalog values it did not have (IFAVM temperature, IF of VF, VF0, rF, TJM) are under Variants [2]. In this table VF and IR are maximum values (at the IF and TJ given), VF0 is a maximum and i²t is printed in kA²s; the codes marked „(R)” are also made with reverse polarity; the 275 A that this page gives as IFRM is in the catalog’s IF RMS column; the „-S” codes have a metal-glass case [2]. For the codes of this table already on this page the catalog gives IF RMS 275 A; i²t 12000 A²s (elsewhere on this page: IF RMS 140 A; i²t 16200 A²s) [2].
Measurement conditions (as printed in the table): IFRMSM at Tamb = 98 °C; IFAVM at Tamb = 98 °C; VF at IF = 275 A; IR at Tamb = 150 °C; IFSM for 10 ms.
Gallery
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References
- [1]N. Drăgulănescu – „Agenda radioelectronistului”, 2nd edition, Editura Tehnică, 1989, section 27.1.2 „Diode redresoare produse în R.S.R.”, „Diode cu siliciu”, pp. 496–497
- [2]I.P.R.S. Băneasa – „Full Line Condensed Catalog”, 1990, section 5 „Silicon diodes”, „Rectifiers”, „Standard rectifiers ( IFAVM < 100 A )”, pp. 5-30…5-31