2026年8月14日
What Is an RJ45 Connector? Understanding RJ45 Pinout and Uses
What is RJ45 connector? Get pinout details, Ethernet uses, and sourcing specs like plating and termination to avoid...
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 RJHSE-5380 / Pulse J0011D01BNL Alternative
- Mates With
- Standard RJ45 / 8P8C Male Ethernet Plugs (Cat5e / Cat6)
Drop-in Replacement: This part is a direct, pin-compatible substitute for the competitor part number listed above. No design modification required.
Technical Specifications
- Connector Type
- RJ45 8P8C Female Modular Jack
- Number of Positions / Contacts
- 8 Positions / 8 Contacts (8P8C)
- Mounting Type
- Mid-Mount (Sinking) / Surface Mount (SMT) Straight Pin with LED
- Center / Sinking Depth
- 4.20 mm
- Overall Dimensions (L x W x H)
- 16.20 mm x 15.30 mm x 11.05 mm (Body profile)
- Visual Indicators
- Dual Integrated LEDs (Left LED / Right LED)
- Contact Pitch
- 1.02 mm (1.02 mm x 7 = 7.14 mm total span)
- SMT Solder Pad Size
- 0.55 mm x 1.92 mm
- Recommended PCB Cutout Width
- 14.00 mm (with 0.70 mm relief notches)
- Grounding Tab Spacing
- 16.08 mm (Dual 2.20 mm slots)
- Shielding Structure
- Copper alloy full-metal shield with ground retention tabs
- Standard Compliance
- RoHS Compliant, UL 94V-0
Material Composition
| Material | Value / Description |
|---|---|
| Housing Material | Thermoplastic, Black (UL 94V-0) |
| Contact Material & Plating | Phosphor Bronze, Selective Au/Sn Plated |
| Shell Material & Plating | Copper Alloy, Nickel Plated |
Technical Characteristics
| Characteristic | Value |
|---|---|
| Rated Voltage | 125 VAC RMS |
| Rated Current | 1.5 A |
| Contact Resistance | 30 mΩ Max. |
| Insulation Resistance | 1000 MΩ Min. |
| Dielectric Strength | 1000V AC RMS 50Hz, 1 Minute |
| Operating Temperature Range | -40°C to +85°C |
| Relative Humidity Resistance | 90% ~ 95% RH (40°C ± 2°C) |
| General Dimensional Tolerances | 0 Place: ±0.50 mm; 1 Place: ±0.35 mm; 2 Place: ±0.25 mm; 3 Place: ±0.15 mm; Angular: ±3° |
Application Scenarios
-
Slim industrial automation controllers, IPCs, and embedded Single Board Computers (SBC)
-
Low-profile Ethernet switches, commercial routers, and IoT gateways
-
Interactive smart kiosks, POS motherboards, and commercial flat-panel displays
-
Network surveillance cameras, compact NVR units, and video transmission equipment
-
DIN-rail mounted communication cards with tight vertical chassis restrictions
Frequently Asked Questions
What are the mechanical advantages of a 4.20mm mid-mount sinking SMT RJ45 connector?
A mid-mount sinking RJ45 recesses 4.20mm into a pre-routed PCB edge cutout rather than sitting directly on the surface. Combining this low-profile geometry with SMT straight contact tails significantly reduces the vertical stack height above the PCB to 6.85mm, enabling slim chassis integration while maintaining high Pick & Place assembly efficiency.
What is the recommended PCB cutout and footprint layout for this sinking SMT jack?
The PCB requires an edge notch 14.00mm wide with 0.70mm lateral clearance steps. The footprint features 8 SMT signal pads measuring 0.55mm x 1.92mm spaced at a 1.02mm pitch (7.14mm total span), supported by through-hole slots for the integrated LED leads (pins 9–12) and dual 2.20mm grounding tabs spaced 16.08mm apart holding ±0.05mm positioning tolerances.
How do the shell and contact materials contribute to signal integrity and environmental durability?
The copper alloy outer shell is nickel plated to deliver complete EMI/RFI shielding and corrosion prevention. Phosphor bronze contacts with selective gold plating at the mating interface and tin plating on solder areas guarantee contact resistance remains below 30 mΩ while resisting oxidation across -40°C to +85°C and 90%–95% RH environments.
What electrical isolation parameters does this modular jack satisfy for industrial hardware?
The connector is rated for 125 VAC RMS at 1.5A. It delivers a dielectric breakdown strength of 1000V AC RMS at 50Hz for 60 seconds and minimum insulation resistance of 1000 MΩ, fulfilling standard IEEE 802.3 Ethernet physical layer isolation requirements.
Overview and Application Notes
This mid-mount sinking RJ45 8P8C female modular jack combines surface-mount (SMT) straight-pin contacts with integrated dual LED indicators and a 4.20mm sinking profile. Engineered for compact, low-profile networking hardware, it significantly lowers the above-board profile height while delivering continuous EMI shielding, optical port activity diagnostics, and robust mechanical retention on space-critical circuit boards.
Key Features
- Modular Port Configuration: Standard 8 positions and 8 contacts (8P8C) female modular interface.
- Mid-Mount Sinking Architecture: 4.20mm drop-in sinking depth reduces overall board-level vertical elevation.
- SMT Signal Contacts: Surface-mount straight signal pins streamline automated Pick & Place and reflow soldering.
- Integrated Dual LEDs: Pre-installed Left and Right LED status indicators for real-time link diagnosis and packet activity monitoring.
- Rugged Material System: Black thermoplastic housing (UL 94V-0), phosphor bronze contacts with selective Au/Sn plating, and a nickel-plated copper alloy shielding shell.
- Industrial-Grade Ratings: Rated at 125 VAC RMS / 1.5A, contact resistance ≤ 30 mΩ, insulation resistance ≥ 1000 MΩ, and dielectric withstanding voltage of 1000V AC RMS.
- Operating Temperature Range: Qualified for industrial environments from -40°C to +85°C under 90%–95% relative humidity.
Engineering Specifications & PCB Integration
Designed for PCB panel-edge drop-in routing with a 14.00mm broad cutout, 0.70mm lateral clearance offsets, and dual 2.20mm grounding notch cutouts spaced 16.08mm apart. SMT signal contacts feature a 1.02mm pitch (7.14mm total span) resting on 0.55mm x 1.92mm solder pads, complemented by dual LED through-hole terminals (pins 9–12) and side grounding solder tabs to achieve rigid mechanical anchoring against mating stress.
