KBU6K-E4/51 Vishay Bridge Rectifier (Transistor Outline, Vertical) In Stock
Vishay KBU6K-E4/51 is a silicon bridge rectifier diode in isolated KBU-4 plastic case with 800V breakdown voltage and 1V maximum forward voltage. Handles up to 250A non-repetitive peak forward current for robust AC-to-DC conversion. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Vishay
- Package
- Transistor Outline, Vertical
- Pin Count
- 4
- Lifecycle
- OBSOLETE
- Datasheet
- KBU6K-E4/51 Datasheet PDF
- Category
- Bridge Rectifier
- Price
- From $2.1254(MOQ 1)
- Temp Range
- -50.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 800V minimum breakdown voltage for high-voltage AC-to-DC rectification
- 250A non-repetitive peak forward current capacity for surge protection
- 1V maximum forward voltage drop for efficient power conversion
- Isolated KBU 4-pin package for safe heatsink mounting without electrical contact
- Silicon bridge configuration with 4 elements for full-wave rectification
- RoHS compliant (JESD-609 e4) for global regulatory compliance
Applications
The KBU6K-E4/51 is designed for full-wave bridge rectification in power supplies, motor drives, and industrial equipment requiring reliable AC-to-DC conversion at up to 800V. Its 250A surge current capability makes it particularly suitable for inrush-heavy loads such as transformer-coupled power supplies and battery chargers. The isolated KBU package allows direct heatsink attachment without insulating hardware, simplifying thermal management in space-constrained enclosures.
Specifications
| YTEOL | 0 |
| Breakdown Voltage-Min | 800V |
| Case Connection | ISOLATED |
| Configuration | BRIDGE, 4 ELEMENTS |
| Diode Element Material | SILICON |
| Diode Type | BRIDGE RECTIFIER DIODE |
| Forward Voltage-Max (VF) | 1V |
| JESD-30 Code | R-PSFM-T4 |
| JESD-609 Code | e4 |
| Non-rep Pk Forward Current-Max | 250A |
| Number of Elements | 4 |
| Number of Phases | 1 |
| Output Current-Max | 6A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Qualification Status | Not Qualified |
| Reference Standard | UL RECOGNIZED |
| Rep Pk Reverse Voltage-Max | 800V |
| Surface Mount | NO |
| Terminal Finish | SILVER |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | SINGLE |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.80 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the peak surge current rating of the KBU6K-E4/51 during power-on inrush events?
The KBU6K-E4/51 can handle up to 250A non-repetitive peak forward current, making it well-suited for absorbing the high inrush currents that occur when large capacitor banks or transformer primaries are energized in industrial power supply designs operating up to 800V.
Which power supply topologies benefit from the KBU6K-E4/51 isolated package design?
The isolated KBU 4-pin package allows the KBU6K-E4/51 to be mounted directly on a chassis heatsink without an insulating pad, reducing thermal resistance by approximately 0.5°C/W compared to non-isolated packages. This benefits linear and switch-mode power supplies where the heatsink is grounded to chassis at 800V-class voltage levels.
How does the KBU6K-E4/51 forward voltage compare across operating temperature in rectifier circuits?
The KBU6K-E4/51 specifies a maximum forward voltage of 1V at rated current, which is typical for silicon junction bridge rectifiers. This low forward drop limits conduction losses in 6A continuous rectifier applications, and the silicon diode junction characteristic means forward voltage decreases slightly as junction temperature rises above 25°C.
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About Vishay
Vishay is a leading electronic component manufacturer. FindMyChip sources Vishay ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.3340 | $2.33 |
| 10+ | $2.2190 | $22.19 |
| 100+ | $2.2060 | $220.60 |
| 2000+ | $2.1476 | $4295.16 |
| 4000+ | $2.1365 | $8546.04 |
| 8000+ | $2.1254 | $17003.52 |
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