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 (UL 94V-0, 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 |
| 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 connector is a standard 2.00mm pitch 2x10 USB 3.0 internal header featuring 19 active pins and 1 key pin (Pin 20). It is fully compatible with standard 20-pin IDC front panel cable receptacles.
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 molded with durable UL 94V-0 rated PA66 housing and operates reliably across an extended temperature range of -55°C to +105°C. Its 2.00mm pitch through-hole DIP soldering ensures strong mechanical retention against shock and vibration.
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 reliable internal motherboard connectivity, the EU20MB4M1200 is an industry-standard USB 3.0 20-pin (19-pin active with 1 keying pin) internal header plug. Featuring a 90-degree right-angle through-hole (THT/DIP) design and a 2.00mm pitch, it enables low-profile horizontal cable routing for space-constrained IPC motherboards and industrial chassis. The connector is constructed with a UL 94V-0 rated PA66 housing and gold-plated copper alloy pins over nickel with tin-plated solder tails, rated for 3,000 mating cycles and an operating temperature range of -55°C to +105°C. As a factory-direct manufacturer, we offer scalable production and customizable plating options for OEM/ODM requirements.
Application Notes
-
Keying & Orientation: Designed with Pin 20 blocked (keying position) to ensure foolproof mating with standard USB 3.0 front-panel IDC female cable assemblies and prevent reverse insertion.
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PCB Layout & Pitch: Maintain a standard 2.00mm pitch grid with 0.80mm diameter through-hole drillings for the 19 active pins. Recommended PCB thickness is 1.20mm to 1.60mm.
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Clearance & Low Profile: The 90-degree horizontal configuration directs the mated cable parallel to the PCB, minimizing vertical enclosure height in 1U/2U servers and embedded enclosures.
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Soldering & Processing: The PA66 (UL 94V-0) thermoplastic housing supports standard wave soldering processes with superior resistance to mechanical vibration.
