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Diodes - Bridge Rectifiers

Image Part Number Description / PDF Quantity Rfq
VBO21-08NO7

VBO21-08NO7

Wickmann / Littelfuse

BRIDGE RECT 1P 800V 21A ECO-PAC1

0
UGD8124AG

UGD8124AG

Wickmann / Littelfuse

BRIDGE RECT 1P 10.5KV 1.2A UGB-3

17
VUB120-16NOX

VUB120-16NOX

Wickmann / Littelfuse

BRIDGE RECT 3P 1.6KV 180A MODULE

0
VBO30-16NO7

VBO30-16NO7

Wickmann / Littelfuse

BRIDGE RECT 1P 1.6KV 35A PWS-A

17
VBE17-06NO7

VBE17-06NO7

Wickmann / Littelfuse

BRIDGE RECT 1P 600V 27A ECO-PAC1

0
VUO98-08NO7

VUO98-08NO7

Wickmann / Littelfuse

BRIDGE RECT 3P 800V 100A ECOPAC2

0
VUO68-16NO7

VUO68-16NO7

Wickmann / Littelfuse

BRIDGE RECT 3P 1.6KV 68A ECOPAC1

0
VUO35-16NO7

VUO35-16NO7

Wickmann / Littelfuse

BRIDGE RECT 3P 1.6KV 38A PWS-A

0
VBO20-16NO2

VBO20-16NO2

Wickmann / Littelfuse

BRIDGE RECT 1P 1.6KV 31A FO-A

0
VUO30-08NO3

VUO30-08NO3

Wickmann / Littelfuse

BRIDGE RECT 3P 800V 37A FO-F-B

0
VBO88-08NO7

VBO88-08NO7

Wickmann / Littelfuse

BRIDGE RECT 1P 800V 92A ECO-PAC2

0
VUO30-16NO3

VUO30-16NO3

Wickmann / Littelfuse

BRIDGE RECT 3P 1.6KV 37A FO-F-B

8550
VUO86-08NO7

VUO86-08NO7

Wickmann / Littelfuse

BRIDGE RECT 3P 800V 86A ECO-PAC1

0
MDNA240U2200ED

MDNA240U2200ED

Wickmann / Littelfuse

BIPOLARMODULE-BRIDGERECTIFIER E2

0
VUB145-16NOXT

VUB145-16NOXT

Wickmann / Littelfuse

BRIDGE RECT 3P 1.6KV 150A E2

6
VBO22-08NO8

VBO22-08NO8

Wickmann / Littelfuse

BRIDGE RECT 1PHASE 800V 21A FO-B

0
VBO25-08NO2

VBO25-08NO2

Wickmann / Littelfuse

BRIDGE RECT 1PHASE 800V 38A FO-A

0
VUO98-16NO7

VUO98-16NO7

Wickmann / Littelfuse

BRIDGE RECT 3P 1.6KV ECO-PAC2

175
VBO54-12NO7

VBO54-12NO7

Wickmann / Littelfuse

BRIDGE RECT 1P 1.2KV 54A ECOPAC1

0
VBO20-08NO2

VBO20-08NO2

Wickmann / Littelfuse

BRIDGE RECT 1PHASE 800V 31A FO-A

0

Diodes - Bridge Rectifiers

1. Overview

Bridge rectifiers are discrete semiconductor devices that convert alternating current (AC) to direct current (DC) using a bridge configuration of four or more diodes. They are fundamental components in power supply circuits, enabling efficient energy conversion in electronic systems. Their importance lies in providing reliable rectification for applications ranging from consumer electronics to industrial machinery, ensuring compatibility between AC power sources and DC-powered devices.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Single-Phase Full-Wave BridgeRectifies both AC half-cycles, low ripple outputSwitching power supplies, battery chargers
Three-Phase Bridge RectifierHandles three-phase AC inputs, higher efficiencyIndustrial motor drives, renewable energy inverters
High-Voltage BridgeRated for >1000V reverse voltageElectric vehicle charging stations, HVDC systems
Bridge Rectifier ModuleIntegrated heat sink, multi-pin packageHigh-power audio amplifiers, welding equipment

3. Structure and Components

A standard bridge rectifier consists of 4 diodes arranged in a closed-loop "bridge" configuration. The diodes are typically silicon-based PN-junction or Schottky barrier structures. The package uses epoxy resin encapsulation with metal terminals for AC/DC connections. Advanced designs incorporate:

  • Thermal vias for heat dissipation
  • Gold-aluminum wire bonds for conductivity
  • Integrated snubber circuits for voltage spike suppression

4. Key Technical Specifications

ParameterDescriptionImportance
Max Average Rectified Current (IO)Maximum continuous DC current ratingDetermines power handling capability
Reverse Peak Voltage (VRRM)Maximum allowable reverse voltagePrevents breakdown under AC peak voltages
Forward Voltage Drop (VF)Voltage loss during conductionImpacts efficiency and thermal design
Operating Temperature RangeValid temperature range for functionalityAffects reliability in extreme environments
Reverse Recovery Time (trr)Time to switch from conduction to blockingCritical for high-frequency applications

5. Application Fields

  • Power Electronics: AC-DC converters in PCs/servers
  • Automotive: Alternator rectification in combustion engines
  • Renewables: Solar inverter input stage
  • Consumer: LED driver circuits in TVs
  • Industrial: CNC machine tool power supplies

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
ON SemiconductorMB10F Series1A average current, 600V VRRM, high surge capability
STMicroelectronicsDBL60V120SGThree-phase 600V, integrated TVS protection
Vishay IntertechnologyKBU8M800V rating, 8A average current, compact package
Diodes Inc.GBU606600V, 6A, low leakage current

7. Selection Recommendations

Consider the following factors during component selection:

  1. Calculate required IO with 20% safety margin
  2. Select VRRM >1.5 expected AC peak voltage
  3. Choose low VF devices for >85% efficiency
  4. Match package thermal characteristics to cooling solution
  5. For high-frequency use, prioritize trr <50ns

8. Industry Trends

Future development focuses on:

  • Wide bandgap (SiC/GaN) bridges for 98%+ efficiency
  • 3D-printed heat spreader integration
  • Smart rectifiers with built-in current sensing
  • Automotive-grade modules for 800V EV systems
  • Lead-free packaging meeting RoHS 3.0 standards

Market growth driven by renewable energy systems and electric vehicle adoption, projected at 6.2% CAGR through 2030 (Source: Yole D veloppement).

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