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) / Through-Hole DIP Right Angle
- Offset / Sinking Height
- 4.20 mm
- Visual Indicators
- Dual Integrated LEDs: Left LED (Yellow, 9+/10-) / Right LED (Green, 11+/12-)
- Contact Pitch
- 1.02 mm (1.02 mm x 7 = 7.14 mm total span)
- PCB Hole Specifications
- 12x Ø1.00 mm (Signal + LED leads), 2x 2.20 mm Grounding slots
- Overall Dimensions (L x W x H)
- 16.20 mm x 15.30 mm x 11.05 mm (Body profile excluding solder tails)
- Recommended PCB Thickness
- 1.60 mm
- Shielding Structure
- Full metal brass shell with integrated side and 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, Au 1µ" / Sn Plated |
| Shell Material & Plating | Brass, 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
-
Low-profile industrial automation controllers and Single Board Computers (SBC)
-
Slim-enclosure Ethernet switches, IoT routers, and compact gateways
-
Networked video surveillance recorders (NVRs) and IP cameras
-
Commercial smart POS terminals, kiosks, and interactive digital displays
-
Telecom embedded interface cards and DIN-rail networking hardware
Frequently Asked Questions
What are the mechanical advantages of a 4.20mm mid-mount sinking RJ45 connector?
A mid-mount sinking RJ45 connector drops 4.20mm into a pre-routed PCB edge notch rather than resting fully on the surface. This design lowers total above-board height to 6.85mm, accommodating ultra-slim chassis constraints while using through-hole DIP solder legs to withstand plug insertion forces and mechanical vibrations.
What are the recommended PCB cutout dimensions and hole patterns for this jack?
The circuit board requires a 14.00mm wide edge cutout with 0.70mm lateral relief notches and R0.90 corner fillets. The footprint requires 12x Ø1.00mm holes (accommodating 8 signal pins on a 1.02mm pitch and 4 LED terminals) alongside dual 2.20mm grounding slots spaced 16.08mm apart, maintaining a ±0.05mm layout tolerance.
What LED indicators are built into this modular jack and how are they wired?
The connector features pre-assembled Left Yellow (Anode pin 9, Cathode pin 10) and Right Green (Anode pin 11, Cathode pin 12) LEDs. These integrate into the front face for immediate hardware link status and Ethernet activity diagnostics without requiring external light pipes or panel-mounted LEDs.
How do the brass shell and phosphor bronze contacts ensure signal integrity?
The outer brass shell is electroplated with nickel to provide complete 360-degree EMI/RFI shielding and corrosion prevention. The phosphor bronze contacts feature 1µ" gold plating over nickel at the mating interface, ensuring contact resistance remains below 30 mΩ and resisting oxidation across -40°C to +85°C and 90%–95% RH conditions.
Overview and Application Notes
This mid-mount sinking RJ45 8P8C female modular jack integrates dual LED indicators (Left Yellow / Right Green) with a 4.20mm offset sinking height and DIP through-hole termination. Designed for ultra-low profile networking hardware, it minimizes vertical board clearance while providing EMI shielding, reliable optical port status diagnosis, and rugged mechanical anchoring for compact industrial PCs, embedded routers, and edge networking controllers.
Key Features
- Modular Configuration: Standard 8 positions and 8 contacts (8P8C) female modular interface.
- Mid-Mount Sinking Profile: 4.20mm drop-in sink offset depth drastically lowers total profile height above the PCB.
- Integrated Dual LEDs: Pre-assembled Yellow (Left) and Green (Right) LED indicators for real-time link status and network packet monitoring.
- High-Reliability Materials: UL 94V-0 rated thermoplastic housing, phosphor bronze contacts with 1µ” gold-over-nickel plating on mating areas and tin tails, encased in a nickel-plated brass shell.
- Rugged Electrical Performance: Rated at 125 VAC RMS / 1.5A, contact resistance ≤ 30 mΩ, insulation resistance ≥ 1000 MΩ, and dielectric breakdown strength of 1000V AC RMS.
- Industrial Thermal Range: Tested and validated for robust operation from -40°C to +85°C in relative humidity levels of 90%–95% RH.
Engineering Specifications & PCB Integration
Engineered for panel-edge mid-mount cutouts requiring a 14.00mm broad panel notch and 0.70mm lateral clearances with R0.90 stress-relief corner fillets. The footprint layout incorporates 8 signal positions on a 1.02mm pitch (7.14mm total span) through 12x Ø1.00mm through-holes (including the integrated 4-lead LED pins) with a 4.00mm contact offset. Shell grounding tabs utilize dual 2.20mm slots with a 16.08mm center-to-center span to ensure rigid mechanical retention and wave-solder barrel fill on standard 1.60mm FR-4 boards.
