GRX Floating Connectors: 0.8mm Pitch Board-to-Board Connectors for LED Displays
After four articles building the technical foundation, we now have a comprehensive understanding of floating connector principles, advantages, and application scenarios. This final article introduces GRX Connector and its floating connector product line — covering product characteristics, key technical specifications, and compatibility with mainstream industry solutions.
1. GRX Differentiated Positioning: Purpose-Built for LED Display Applications
Unlike many general-purpose connector manufacturers, GRX Connector floating connector products are independently developed and engineered specifically for the LED display industry, backed by proprietary patents. This focused positioning means GRX designs its products with the specific demands of the LED display industry in mind: continuous vibration during LED display module assembly and operation, assembly precision requirements when multiple PCBs are densely arranged, and the unique signal transmission and power delivery requirements of display systems.
2. GRX Series 1: 22+8Pin / 42+8Pin Configuration
Technical Specifications:
| Parameter | Specification |
|---|---|
| Pitch | 0.80 mm |
| Pin Count | 30P (22+8Pin) / 50P (42+8Pin) |
| Mated Height | 8.00 mm / 9.00 mm / 11.75 mm / 12.75 mm |
| Rated Current | 5A (Power Pins) / 0.5A Max. (Signal Pins) |
| Rated Voltage | AC/DC 50V Max. |
| Contact Resistance | 100 mOhm Max. |
| Durability | 100 cycles |
| Floating Range | X, Y, Z: plus or minus 0.50 mm |
| Environmental Compliance | RoHS 2.0 + Halogen-Free (HF) |
| Packaging | Tape and Reel + Vacuum packaging |
The 22+8Pin / 42+8Pin pin configuration embodies the signal + power separation design philosophy essential for LED display applications. Eight Power Pins handle high-current supply rated 5A, meeting the driving requirements of LED pixel elements. Twenty-two or forty-two Signal Pins carry control data at 0.5A rated, ensuring accurate image data transmission.
Four mated height options (8.00 / 9.00 / 11.75 / 12.75 mm) provide flexible selection for different LED module thicknesses. Three-axis plus or minus 0.50 mm float is the centerpiece of this product competitiveness.
3. GRX Series 2: 40Pin / 60Pin / 80Pin Configuration (IRISO 827 / 9828 Compatible)
Technical Specifications:
| Parameter | Specification |
|---|---|
| Pitch | 0.80 mm |
| Pin Count | 40Pin / 60Pin / 80Pin |
| Mated Height | 8.00 mm / 9.00 mm / 11.75 mm / 12.75 mm |
| Rated Current | 0.5A Max. |
| Rated Voltage | AC/DC 50V Max. |
| Contact Resistance | 100 mOhm Max. |
| Durability | 100 cycles |
| Floating Range | X, Y, Z: plus or minus 0.50 mm |
| Environmental Compliance | RoHS 2.0 + Halogen-Free (HF) |
| Packaging | Tape and Reel + Vacuum packaging |
The standout feature of this series is its 1:1 drop-in compatibility with IRISO 827 Series and 9828 Series connectors. If your current design uses IRISO 827 or 9828 series connectors, you can switch directly to GRX equivalent series without any PCB redesign. For supply chain diversification and reducing single-source dependency, this gives engineers meaningful additional options.
4. Shared Technical Highlights
0.80 mm Fine-Pitch High-Density Design: A 0.80 mm pin pitch qualifies as a fine-pitch design, placing high demands on manufacturing precision and reflecting GRX accumulated expertise in precision fabrication.
RoHS 2.0 + HF Certification: GRX floating connectors carry both RoHS 2.0 and Halogen-Free certifications, meeting EU and global mainstream market environmental requirements for smooth international market access.
Tape and Reel + Vacuum Packaging: Directly compatible with SMT automated placement equipment for seamless production integration, while preventing oxidation and contamination during storage and transport.
Three-Axis Float: plus or minus 0.50 mm: All three axes X/Y/Z provide plus or minus 0.50 mm of float — a comprehensive floating characteristic capable of handling assembly misalignment and operational vibration displacement from multiple directions.
5. Product Selection Guide
| Application Scenario | Recommended Series | Recommended Specification |
|---|---|---|
| LED displays (mixed power + signal transmission) | Series 1 (22+8Pin or 42+8Pin) | Select mated height based on board spacing |
| Pure signal transmission, high pin count | Series 2 (40/60/80Pin) | Select pin count based on signal count |
| Drop-in replacement for IRISO 827/9828 | Series 2 (40/60/80Pin) | Direct 1:1 replacement |
6. About GRX Connector
GRX Connector is dedicated to the independent R&D and manufacturing of connector solutions, with deep technical expertise and extensive customer service experience in the LED display industry. The core competitive strengths of GRX floating connectors: independently developed with proprietary patents (no dependence on external technology licensing), purpose-optimized for the LED display industry (built on a thorough understanding of industry pain points), compatible with leading international brands (IRISO) — minimizing customer switching costs, and rigorous environmental certifications meeting global market access requirements.
Conclusion
This article completes our full technical deep-dive into floating connectors: from why they exist, to what they are and how they work, to their advantages, to where they are used, and finally to GRX specific products and selection guidance — forming a complete knowledge arc. For detailed technical documentation or purchasing inquiries about GRX floating connectors, please visit the official website at www.grxelec.com or contact the GRX technical support team directly.
Shenzhen Gaorunxin Technology Co., Ltd
