2026年7月14日
What Is a USB-C Connector? A Practical FAQ for OEM Buyers
What is a USB-C connector? Learn the four hidden parameters OEM buyers must check to avoid SMT rework...
Detailed Product Information
Technical Data & Reference
Structured parameters, material notes, application context and frequently asked questions for engineering and procurement evaluation.
Competitor & Cross-Reference
- Alternative Type
- Drop-in Replacement
- Competitor Part Number
- Amphenol ICC / Wurth Elektronik (Standard USB 3.0 2x10 Header equivalents)
- Mates With
- Standard USB 3.0 20-Pin (19-Pin) IDC Cable Receptacles (Front Panel Cables)
Drop-in Replacement: This part is a direct, pin-compatible substitute for the competitor part number listed above. No design modification required.
Material Composition
| Material | Value / Description |
|---|---|
| Contact Material | Copper Alloy |
| Contact Plating | Gold (Au) over Nickel on Mating Area, Tin on Solder Tails |
| Flammability Rating | UL 94V-0 |
| Housing Material | PA66 (Black/Blue available) |
Technical Characteristics
| Characteristic | Value |
|---|---|
| Data Transfer Rate | Up to 5 Gbps (SuperSpeed) |
| Contact Resistance | 20 mΩ Max. |
| Insulation Resistance | 1000 MΩ Min. |
| Withstanding Voltage | AC 500V (for 1 minute) |
| Mating Cycles | 3,000 Cycles Min. |
| Operating Temperature | -55°C to +105°C |
Application Scenarios
-
Industrial PCs (IPCs) & Embedded Systems: Provides a secure internal connection for routing high-speed 5Gbps USB 3.0 ports to the front panel or custom I/O brackets.
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Server Motherboards: Ideal for internal diagnostics or USB boot drive interfaces, utilizing the right-angle design to save vertical space in 1U/2U rackmount enclosures.
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Custom Kiosk & Point-of-Sale (POS) Terminals: Offers a highly durable, 3,000-cycle reliable internal header for connecting peripheral expansion boards and card readers.
-
Consumer Desktop Motherboards: Serves as the standard internal I/O expansion header for seamless compatibility with all standard PC case front-panel USB 3.0 cables.
Frequently Asked Questions
Does this 20-pin header support standard USB 3.0 front panel cables?
Yes, this is an industry-standard USB 3.0 20-pin header (with 19 active pins and 1 keying pin). It is universally compatible with standard 2x10 IDC female receptacles found on PC chassis front panel cables.
Why choose a right-angle (90-degree) orientation over a vertical header?
The right-angle design allows the mating cable to run parallel to the printed circuit board. This is extremely beneficial in low-profile enclosures or instances where vertical clearance above the motherboard is severely restricted by expansion cards or cooling solutions.
What makes this connector suitable for industrial environments?
It is built with high-quality PA66 plastic and features a wide operating temperature range of -55°C to +105°C. Additionally, its robust through-hole (THT) mounting provides superior mechanical retention against vibration compared to SMT alternatives.
Can you customize the contact plating thickness?
As the factory direct manufacturer, we offer standard gold-flash plating for cost-effectiveness, but we can customize the gold plating thickness (e.g., 15µ" or 30µ") for applications requiring enhanced corrosion resistance and mating durability.
What is the typical lead time for bulk orders?
For standard configurations, our typical lead time is 2 to 4 weeks. We also support rapid prototyping for OEM engineering validation within 3 to 5 days. Please reach out to our sales team for specific MOQs.
Overview and Application Notes
Overview Designed for robust internal motherboard connectivity, the EU20MB4M1200 is a standard USB 3.0 20-pin (19-pin active) internal header plug. Featuring a 90-degree right-angle through-hole (THT) design, it allows for low-profile horizontal cable routing, making it ideal for space-constrained industrial chassis and custom motherboards. Delivering 5 Gbps SuperSpeed data transfer, this connector is constructed with high-temperature PA66 housing and gold-plated copper alloy contacts, guaranteeing excellent mechanical durability of up to 3,000 mating cycles. As a direct OEM manufacturer, we offer scalable production and customizable plating options to meet your exact assembly requirements.
Application Notes
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Keying & Orientation: The connector features a standard missing pin (Pin 20) for foolproof mating with standard USB 3.0 front panel IDC cable assemblies, preventing reverse insertion.
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PCB Layout: Maintain a strict 2.00mm pitch grid during PCB design. Ensure differential impedance is matched for the SuperSpeed signal lines to preserve 5 Gbps integrity.
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Cable Routing Clearance: The right-angle (90-degree) orientation directs the mated cable parallel to the PCB. Ensure adequate horizontal clearance is maintained within the chassis design to avoid cable strain.
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Soldering Profile: The PA66 (UL 94V-0) thermoplastic housing offers excellent thermal resistance. It is fully compatible with standard wave soldering processes used in through-hole PCB assembly.
