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 RJCSE-5380-01 / Pulse J0011D01BNL Alternative
- Mates With
- Standard RJ45 / 8P8C Male Ethernet Plugs (Cat5e / Cat6 Patch Cables)
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) / Through-Hole DIP
- Center / Sinking Height
- 5.15 mm
- Contact Pitch
- 1.02 mm (1.02 mm x 7 = 7.14 mm total span)
- Solder Tail Length
- 1.60 mm
- Overall Dimensions (L x W x H)
- 16.20 mm x 13.60 mm x 9.80 mm (Excluding solder tails)
- Recommended PCB Thickness
- 1.20 mm - 1.60 mm
- Shielding Structure
- Full metal stainless steel shield with rear grounding tabs
- Standard Compliance
- RoHS Compliant, UL 94V-0
Material Composition
| Material | Value / Description |
|---|---|
| Housing Material | Thermoplastic (UL 94V-0) |
| Contact Material & Plating | Phosphor Bronze, Selective Au/Sn Plated |
| Shell Material & Plating | Stainless Steel, Nickel Plated |
Technical Characteristics
| Characteristic | Value |
|---|---|
| Rated Voltage | 125 VAC RMS |
| Current Rating | 1.5 A |
| Contact Resistance | 30 mΩ Max. |
| Insulation Resistance | 1000 MΩ Min. (at 500V DC) |
| 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 Tolerances | 1 Place: ±0.35 mm; 2 Place: ±0.25 mm; 3 Place: ±0.15 mm; Angular: ±3° |
Application Scenarios
-
Industrial embedded automation controllers and Single Board Computers (SBC)
-
Slim-profile network switches, industrial IoT gateways, and routers
-
Commercial POS hardware, smart interactive kiosks, and digital signage
-
Low-profile telecom transmission modules and security surveillance systems
-
Compact DIN-rail edge-computing devices
Frequently Asked Questions
What are the mechanical advantages of a 5.15mm mid-mount sinking RJ45 connector?
A mid-mount sinking RJ45 connector recesses 5.15mm into a routed PCB edge cutout rather than sitting atop the board surface. This lowers the total above-board height profile significantly, accommodating ultra-slim chassis constraints while utilizing through-hole solder pegs for mechanical retention against mating shock and vibration.
What is the recommended PCB cutout and footprint for this sinking modular jack?
The PCB requires an edge cutout of 14.20mm width with 0.70mm corner clearance notches and R0.50 fillets. Signal pin layout requires 8x Ø0.90mm through-holes on a 1.02mm pitch (7.14mm total span), supported by 1.10mm and 2.40mm shield retention slots with standard ±0.05mm positioning tolerances.
How do the material selections ensure environmental and electrical reliability?
The component uses a nickel-plated stainless steel outer shield for robust EMI/RFI shielding and corrosion resistance. Signal contacts are engineered from phosphor bronze with selective gold plating at the mating interface and tin on solder tails, maintaining contact resistance under 30 mΩ and resisting degradation in 90%–95% RH conditions.
What electrical dielectric safety parameters does this RJ45 connector meet?
The connector is rated for 125 VAC RMS at 1.5A. It delivers a dielectric withstanding breakdown strength of 1000V AC RMS at 50Hz for 60 seconds and minimum insulation resistance of 1000 MΩ, ensuring electrical isolation across -40°C to +85°C industrial operating temperatures.
Overview and Application Notes
This mid-mount (sinking) RJ45 8P8C female modular jack is engineered for low-profile networking hardware and high-density PCB integration. Featuring a 5.15mm drop-in sinking profile and through-hole DIP retention, it significantly reduces vertical board clearance while maintaining structural integrity for slim industrial routers, single-board computers, and compact telecom devices.
Key Features
- Modular Configuration: Standard 8 positions and 8 contacts (8P8C) female interface.
- Low-Profile Sinking Design: 5.15mm drop-in sink depth optimizes vertical space in height-constrained enclosures.
- DIP Through-Hole Mounting: Multi-point solder pegs provide superior mechanical anchoring against mechanical vibration.
- Rugged Material System: High-grade thermoplastic housing (UL 94V-0), phosphor bronze contacts with selective Au/Sn plating, and nickel-plated stainless steel shielding.
- Electrical Integrity: Rated at 125 VAC RMS / 1.5A, contact resistance ≤ 30 mΩ, insulation resistance ≥ 1000 MΩ, and dielectric withstanding voltage of 1000V AC.
- Industrial Thermal Range: Fully rated for reliable operation from -40°C to +85°C.
Engineering Specifications & PCB Integration
Engineered for panel edge drop-in mounting with a 14.20mm wide cutout and 0.70mm lateral clearance offsets. Signal pins feature a standard 1.02mm pitch (7.14mm total span) accommodating 8x Ø0.90mm through-holes. The nickel-plated stainless steel shield incorporates 1.10mm and 2.40mm grounding slots, while 1.60mm solder tails ensure optimal barrel fill across standard 1.20mm to 1.60mm FR-4 circuit boards.
