KBU4B-E4 Vishay Bridge Rectifier (Transistor Outline, Vertical) In Stock

Name: KBU4B-E4
Brand: Vishay
SKU: KBU4B-E4
Availability: InStock

KBU4B-E4 is a KBU4B-E4, Single-Phase Bridge Rectifier, KBU for electronic system designs. Key details include 4 pins in Transistor Outline, Vertical from Vishay. It supports industrial electronics, embedded systems, instrumentation, maintenance repair, and production sourcing programs with worldwide sourcing support.

ACTIVEBridge RectifierVerified Jun 2026

Package / Visual Reference

KBU4B-E4Transistor Outline, Vertical

Quick Facts

Manufacturer: Vishay
Package: Transistor Outline, Vertical
Pin Count: 4
Lifecycle: ACTIVE
Datasheet: KBU4B-E4 Datasheet PDF
Category: Bridge Rectifier
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of KBU4B-E4?

4 pins configuration supports practical discrete semiconductor design checks
Transistor Outline, Vertical package information helps buyers verify footprint and assembly fit
Vishay sourcing profile for industrial electronics and production maintenance
Suitable for BOM matching, lifecycle review, and replacement procurement workflows

What is KBU4B-E4 used for?

KBU4B-E4 is commonly considered for industrial electronics, embedded systems, instrumentation, maintenance repair, and production sourcing programs. Buyers use it for BOM fulfillment, repair programs, and alternate sourcing reviews where diode availability and manufacturer traceability matter. Its 4 pins detail helps engineers confirm board fit and replacement compatibility.

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)

Where can I find the KBU4B-E4 datasheet?

KBU4B-E4 Datasheet Download

Official datasheet from Vishay

What are equivalent replacements for KBU4B-E4?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

Which designs can use KBU4B-E4 when 4 pins matters?

KBU4B-E4 is suitable for industrial electronics, embedded systems, instrumentation, maintenance repair, and production sourcing programs where the design review calls for 4 pins and a diode sourced from Vishay.

How should buyers check board fit before ordering KBU4B-E4?

Buyers should compare the Transistor Outline, Vertical footprint, the documented 4 pins, and the existing BOM notes before approving KBU4B-E4 for production or maintenance purchasing.

When is KBU4B-E4 a practical sourcing option for replacement builds?

It is practical when the existing design needs 4 pins, manufacturer traceability from Vishay, and a compatible diode profile for ongoing service builds.

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.

Aug 6, 2026

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.

Aug 6, 2026

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.

Aug 4, 2026

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.

Aug 4, 2026

Why Buy from FindMyChip

Authorized Source

Verified supply chain with full traceability & inspection

Competitive Pricing

Factory-direct from China distributors, low MOQ

Fast Shipping

DHL Express 3–5 days · FedEx/UPS 5–7 days worldwide

Quality Guaranteed

30-day replacement for defective parts, no questions asked

About Vishay

Vishay is a leading electronic component manufacturer. FindMyChip sources Vishay ICs directly from authorized China distributors, offering competitive pricing and reliable stock.

View all Vishay parts →

More from Vishay

PR03000206803JAC00

HVR2500006203FR500

PR02000201001JR500

Resistors, Axial Diameter Horizontal Mounting

Resistor

WSL2512R4700FBA

WSL2512R4700FEB

WSL2512R4700FEK

AvailabilityIn Stock

Reference Price (USD)

Contact for Price

Buy from 1pc · Factory-direct pricing

pcs

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”

Thomas Mueller

Hardware Lead, SensorTech GmbH, Germany