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
- Pulse J0G-0001NL / Bel Fuse 0826-1X1T-GH-F Alternative
- Mates With
- Standard RJ45 / 8P8C Male Ethernet Plugs (Cat5e / Cat6 / Cat6a 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 Magnetic Modular Jack (MagJack)
- Port Configuration
- 1x1 Single Port
- Data Rate / Protocol
- 10/100/1000Base-TX Gigabit Ethernet (Meets or exceeds IEEE 802.3)
- Mounting Type
- Through-Hole DIP / Right Angle
- Latch Orientation
- Tab-Down (Standard Latch Bottom)
- Signal Pin Count
- 10-Pin Staggered PCB Array (P1–P10) + 4 LED Pins (P11–P14)
- Visual Indicators
- Dual Integrated Square LEDs: Left (Green/Yellow, Pins 11–12) / Right (Yellow, Pins 13–14)
- Shield Grounding Center Span
- 15.75 mm
- Isolation Voltage (Hi-Pot)
- 1500 Vrms Min. per IEEE 802.3
- Standard Compliance
- RoHS Compliant, UL 94V-0, IEEE 802.3
Material Composition
| Material | Value / Description |
|---|---|
| Housing Material | Thermoplastic, PBT, UL 94V-0, Black |
| Insert Material | Thermoplastic, PBT, UL 94V-0, Black |
| Coil Base Material | Phenolic, PBT, UL 94V-0, Black |
| Contact Terminal Material | Phosphor Bronze |
| Contact Area Plating | 6µ" Gold Plating over 50µ" Nickel Underplate |
| Solder Area Plating | 100µ" Tin Plating over 50µ" Nickel Underplate |
| Coil Terminal | Copper Alloy (T = 0.40 x 0.40 mm Thickness) |
| Metal Shell Material & Plating | Copper Alloy, 30µ" Nickel Plated Overall |
Technical Characteristics
| Characteristic | Value |
|---|---|
| Inductance (OCL) | 350 µH Min. with 8 mA DC Bias Current |
| Dielectric Isolation | 1500 Vrms Min. (per IEEE 802.3 requirement) |
| LED Wavelength | Green: 568 nm; Yellow: 585 nm |
| LED Forward Voltage (Min/Max) | 1.8 V / 2.8 V @ 20 mA Forward Current |
| Operating Temperature Range | 0°C to +70°C |
| Storage Temperature Range | -40°C to +85°C |
| General Dimensional Tolerances | 0 Place: ±0.50 mm; 1 Place: ±0.25 mm (±0.015"); 2 Place: ±0.15 mm (±0.01"); Angular: ±3° |
Application Scenarios
-
10/100/1000Base-TX Gigabit industrial Ethernet switches, routers, and enterprise gateways
-
Embedded Single Board Computers (SBC), IPCs, and edge AI computing nodes
-
Network Video Recorders (NVRs) and high-definition IP surveillance hardware
-
Industrial automation controllers, PLCs, and high-speed machine vision systems
-
Telecom base station interfaces and commercial network appliances
Frequently Asked Questions
What are the technical advantages of an integrated 1000Base-TX Gigabit magnetic RJ45 jack?
Integrating the 4-pair Gigabit isolation transformers and common-mode chokes inside the RJ45 shield eliminates external discrete magnetic components on the PCB. This saves board space, shortens high-speed differential trace lengths to minimize signal skew, and ensures 1500Vrms IEEE 802.3 galvanic isolation.
How are the integrated LEDs configured and driven on this Gigabit modular jack?
The connector incorporates two square LEDs: a bi-color Green/Yellow LED on the left (pins P11–P12) and a single-color Yellow LED on the right (pins P13–P14). Driven at 20mA with a forward voltage of 1.8V to 2.8V, the 568nm green and 585nm yellow emitters allow clear multi-speed (10/100/1000 Mbps) link and activity indication.
Why does the PCB footprint use a 10-pin signal array instead of 8 pins?
Unlike 10/100Base-TX jacks that only utilize two differential pairs, Gigabit 1000Base-TX transmission requires all four twisted pairs simultaneously. The 10-pin footprint (P1–P10) routes the four differential signal pairs along with the necessary transformer center-tap bias and ground reference connections.
How do the contact and shell platings maintain signal integrity in industrial environments?
Signal contacts are formed from phosphor bronze plated with 6µ" gold on the mating surface and 100µ" tin on the solder tails over a 50µ" nickel barrier. Housed inside a 30µ" nickel-plated copper alloy shell with a 15.75mm ground tab span, it prevents oxidation and provides continuous 360-degree EMI shielding across 0°C to +70°C.
Overview and Application Notes
This 1000Base-TX Gigabit RJ45 8P8C female magnetic modular jack (MagJack) integrates internal 4-pair isolation magnetics and dual optical LED indicators (Left Green/Yellow, Right Yellow) into a single 1×1 port assembly. Featuring a tab-down latch orientation and right-angle through-hole DIP mounting, it delivers IEEE 802.3 compliant 10/100/1000 Mbps signal conditioning, 1500Vrms galvanic isolation, and active port diagnostics for Gigabit industrial switches, edge servers, and embedded computing boards.
Key Features
- Gigabit Integrated Magnetics: 1×1 single-port 8P8C connector engineered to meet or exceed IEEE 802.3 standards for 10/100/1000Base-TX transmission, featuring 350µH minimum OCL with 8mA DC bias.
- Integrated Dual LED Indicators: Built-in Left (bi-color Green/Yellow, pins 11–12) and Right (Yellow, pins 13–14) square LEDs with 568nm/585nm wavelengths for Gigabit link speed and packet activity monitoring.
- Right-Angle DIP Form Factor: Through-hole mounting configuration with a standard tab-down latch orientation and multi-point PCB grounding tabs.
- High-Reliability Material System: Molded from black UL 94V-0 PBT thermoplastic housing and insert, phenolic PBT coil base, phosphor bronze contacts with 6µ” gold plating on the mating area, 100µ” tin on solder tails over 50µ” nickel underplate, and a 30µ” nickel-plated copper alloy shell.
- Galvanic Isolation: Complies with IEEE 802.3 electrical isolation requirements, providing a minimum 1500Vrms dielectric withstand capability.
- Thermal Qualification: Rated for continuous operation from 0°C to +70°C and storage environments from -40°C to +85°C.
Engineering Specifications & PCB Integration
Designed for through-hole component-side mounting on standard FR-4 circuit boards. The Gigabit signal footprint incorporates a 10-pin staggered array (P1–P10) to accommodate all four differential pairs and center taps, paired with 4 through-hole terminals for the integrated LEDs (P11–P14). Physical retention and 360-degree EMI grounding are reinforced by dual plastic locating posts and dual shield solder tabs spaced 15.75mm apart.
