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USB Type-C Straddle Mount Female Connector: A Complete Technical Guide

November/20/2025

USB Type-C Straddle Mount Female Connector: A Complete Technical Guide


1. What Is a USB Type-C Straddle Mount (Edge-Mount) Female Plug?

A USB Type-C straddle mount (also known as edge-mount) female plug is a special board-mount connector designed to sit on the edge of the PCB, allowing the connector shell to “straddle” the board.
This structure enables an ultra-compact profile, excellent mechanical stability, and easy integration in slim devices.
Typical features include:
  • Very short body length
  • Reduced vertical height
  • Rear reflow-solderable pins
  • Compatibility with high-speed differential signals
  • Ideal for space-limited or ultra-thin designs

2. Available Versions

Our straddle-mount Type-C female connectors support a complete protocol range:
Protocol
Supported
Notes
USB 2.0
✔
Basic data + charging
USB 3.0 / USB 3.1
✔
High-speed data applications
USB 3.2 Gen1/Gen2
✔
Enhanced performance
USB4
✔
Advanced full-function Type-C
USB Power Delivery (PD)
✔
Fast charging
Backward Compatibility
✔
Fully backward compatible

3. Typical Applications

Straddle-mount Type-C receptacles are widely used due to their compact design:
  • Consumer electronics (phones, tablets, handheld devices)
  • Smart devices / IoT products
  • Medical devices
  • Industrial controllers
  • Compact power modules
  • Wearable devices
  • Custom wire harness assemblies
  • High-density PCBA designs

4. Installation Method

The connector is installed through the following process:
  1. Place the Type-C socket onto the PCB edge
  2. Ensure alignment with contact pads and board thickness
  3. Reflow soldering is used to fix all SMT terminals and shell grounding pins
  4. Inspection and electrical testing
This method provides strong mechanical anchoring and excellent signal integrity.

5. Model Comparison Table — Straddle Mount / Edge-Mount Series


(All mounting type: Straddle Mount / Edge Mount)
Part Number
Height H(DIM.A)
Length L(DIM.D)
PCB Thickness(DIM.B)
Notes
W0026-24-EM1-S2
5.75 mm
6.8 mm
T = 0.9 mm
Ultra-short
W0026-24-EM1-S3
5.9 mm
7.85 mm
T = 0.8 mm
Ultra-short
W0026-24-EM1-S7A
8.8 mm
10.45 mm
T = 0.8 mm
Includes tongue length & shell pitch
W0026-24-EM1-S7B
8.8 mm
10.45 mm
T = 1.0 mm
Same series variations
W0026-24-EM1-S7C
8.8 mm
10.45 mm
T = 1.2 mm
—
W0026-24-EM1-S7D
9.3 mm
10.95 mm
T = 0.8 mm
—
W0026-24-EM1-S7E
9.3 mm
10.95 mm
T = 1.0 mm
—
W0026-24-EM1-S7F
9.3 mm
10.95 mm
T = 1.2 mm
—
W0026-24-EM1-S7G
10.0 mm
11.65 mm
T = 0.8 mm
—
W0026-24-EM1-S7H
10.0 mm
11.65 mm
T = 1.0 mm
—
W0026-24-EM1-S7I
10.0 mm
11.65 mm
T = 1.2 mm
—
W0026-24-EM1-S7J
10.5 mm
12.15 mm
T = 0.8 mm
—
W0026-24-EM1-S7K
10.5 mm
12.15 mm
T = 1.0 mm
—
W0026-24-EM1-S7L
10.5 mm
12.15 mm
T = 1.2 mm
—
Note: Detailed dimensional drawings can be provided upon request.

6. How to Choose a Straddle Mount Type-C Female Connector

When selecting the right model, consider:
  • Required protocol (USB2.0 / USB3.x / USB4)
  • PCB thickness (T)
  • Mounting clearance & height constraints
  • Mechanical strength requirements
  • Tongue length (if applicable)
  • Shell pitch & grounding structure
  • Current requirements / PD power level
  • Mating cycles or durability needs
If uncertain, you can provide your PCB drawing and mechanical design—we will recommend the correct model.

7. Why Choose Straddle-Mount / Edge-Mount USB Type-C Connectors?

Advantages include:
  • Ultra-compact footprint
  • Suitable for thin and narrow enclosure designs
  • Strong mechanical retention
  • Simplified PCB layout
  • Cost-effective alternative to mid-mount or hybrid designs
  • Ideal for modules and plug-in board structures

8. Customized Solutions

Our product line is continuously expanding. Some new versions may not yet appear in the public catalog.
We offer complete customization, including:
  • Special connector height
  • Custom mechanical structure
  • Custom tongue length
  • Enhanced durability or reinforced shell
  • Extended solder pads
  • Tailored cable harness assemblies
If your project has unique requirements, our engineering team can provide full support from design to mass production.
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