TRANSFORMER
LAN Transformer
Signal isolation and coupling across mainstream data rates.
View Products →COMMUNICATION COMPONENTS · SUPPLY + SOLUTIONS + E-COMMERCE
Choose VOOHU · Truly Reliable
VOOHU Electronics supplies I/O connectors, magnetics and Ethernet ICs. With eight solutions covering Ethernet, SPE and more, plus FAE support, we help accelerate your development.
FIND BY PROBLEM
Find Answers by Problem
No part number yet? Pick the problem closest to where you are now.
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Find a Replacement
Current part discontinued, repriced, or on long lead time? Share the original part number and operating conditions, and we'll return candidate replacements, key differences, and open items to confirm.
Replacement Review → -
Match Components
Already chose the main chip or interface and need a matching transformer, connector, or other companion part? Get reference combinations and operating conditions matched by parameters.
Matching Guide → -
Troubleshooting
Link drops, interference, or failed measurements during bring-up or testing? Describe the symptoms and conditions to get an engineer-reviewed troubleshooting checklist.
Troubleshooting Checklist → -
Compact Parts
Limited by board height, panel cutout, or layout space? Filter small, low-profile parts by height, package, and mounting style.
Filter by Size → -
Samples & Quote
Part number decided and need samples, pricing, or lead time? Submit quantity and target date directly, with a first reply within 1 business day.
Request Form → -
Custom Design
Standard parts don't fit your size, performance, or interface needs? Submit your constraints and project plan to evaluate customization feasibility and path.
Request Form →
PRODUCT LINES
Focused Product Lines, Stock Availability at a Glance
TRANSFORMER
POE Transformer
Isolated power solutions for Power over Ethernet applications.
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I/O CONNECTOR
RJ45 Connector
Standard versions contain no magnetics; PoE designs pair with PoE transformers.
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I/O CONNECTOR
SFP Connector
Connector and shielding-cage components for optical modules.
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PROTECTIVE COMPONENT
Protective Component
TVS/ESD, GDT and MOV selection by protection category.
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INDUCTORS
Common mode choke for signal line
Common-mode noise suppression for signal lines and EMC remediation.
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I/O CONNECTOR
Single Pair Ethernet (SPE) Connector
Single-pair Ethernet components for industrial field applications.
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ETHERNET INTERFACE ICs
Ethernet PHY
Physical-layer ICs selected together with compatible magnetics.
View Products →SOLUTIONS
Eight Solutions, Configured by Application
S1
Ethernet
Ethernet interface and magnetics matching
S2SPE
Single-pair Ethernet with lightweight cabling
S3CAN
CAN-bus isolation, filtering and protection
S4LVDS
High-speed differential signal transmission
S5RS485
Isolation and interference immunity for industrial communications
S6Isolated SPI
Isolated SPI communication
S7PoE
Ethernet data and power over the same cable
S8Push-Pull Converter
Low-power push-pull isolated power supplies
TRANSFORMER, RJ45 CONNECTOR, MAGNETICS, ETHERNET PHY
WHY CHOOSE VOOHU
Why 1,500+ Teams Choose US
We combine the roles of component supplier, solution provider, and e-commerce platform—reliability is the final test of every design and commitment.
01
Product Selection
Explore transformers, connectors, inductors, Ethernet interface ICs, and protection devices. Browse by product category to quickly find the series you need.
Learn More → 02Solution Support
Our eight solutions cover Ethernet, industrial communications, isolated power, and more. We provide reference circuits and matching components to support component selection and design.
Learn More → 03Downloads
Access product catalogs, selection guides, and quality and environmental certification documents in one place to support product selection, design, and compliance checks.
Learn More →2018Established in Suzhou
1500+Business Customers
9 YearsFocused on Communication Components
8 CategoriesSolution
HOW IT WORKS
Four Steps, from Requirements to Volume Delivery
- 01
Submit Requirements
Share your specifications, volumes, and application details—or send your BOM—for product recommendations.
- 02
Solution & Quotation
Our engineers respond within one business day with selection support, followed by pricing and lead-time confirmation.
- 03
Sample Validation
We provide samples, technical documents, and design-in support to help you verify performance and compatibility.
- 04
Volume Delivery
We coordinate volume deliveries, batch traceability, and inventory planning to support your schedule and ongoing demand.
TESTIMONIALS
Hear What Our Partners Say
★★★★★
Lead-time and lot-to-lot consistency have been reliable. Their alternative recommendation saved us two weeks of validation.
Mr. WangNetwork equipment manufacturer · Hardware Lead
★★★★★
We can source the RJ45 connectors and transformers together, which saves a lot of back-and-forth. They also help check the PoE pairing before we order. Clear advice upfront means fewer headaches later.
Ms. LiSecurity solution provider · Sourcing Manager
★★★★★
They’ve been reliable to work with, with fair pricing and consistent lead times. From sample approval through to delivery, someone follows up at every stage and lets us know about changes in advance. We don’t have to keep chasing, which gives us confidence.
Mr. ZhangIndustrial Control Equipment Company · Supply Chain Manager
★★★★★
We mainly place small, repeat orders. Quality and delivery have been consistent across several batches, and our orders get proper attention despite the low volumes. Pricing is reasonable too, so we’re happy to keep working with them.
Mr. LiSecurity Equipment Manufacturer · Purchasing Supervisor
★★★★★
As a business owner, I look at the whole package when choosing a supplier. VOOHU offers helpful technical support, a well-organised process, good product quality and fair pricing. They make things easier for my team, and that gives me confidence.
Ms. ChenNetworking Equipment Company · General Manager
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