WIZnet RJ45 Network Connector Selection Guide
WIZnet RJ45 connectors & transformers: 2.5KV/1.5KV isolation, SMD/DIP, ultra-thin/PoE options for industrial/consumer devices.
Preface
This article focuses on WIZnet's 3 network connectors and 3 network transformers. Each model has its own emphasis on package installation, electromagnetic performance, and structural design, covering scenarios such as through-hole/SMD mounting, general/ultra-thin space requirements, and standard/high-frequency anti-interference capabilities. They meet hardware requirements across multiple fields including industrial control, consumer electronics, and smart devices, helping users quickly identify suitable solutions and reduce selection and development costs.
Core Features of Each Model
I. Network Connectors (RJ45)
HRW5500RE
DIP through-hole package, horizontal 90° network port, 2.5KV electromagnetic isolation, dual indicators (left green, right yellow), no EMI shield clips.
Applications: Industrial standard sensor gateways, embedded simple networking terminals.
HRW5500RS
SMD surface-mount package, horizontal 90° network port, 2.5KV electromagnetic isolation, with EMI shield clips, supports automated mass production.
Applications: Consumer electronic smart devices, industrial terminals in high-frequency electromagnetic environments.
HRW5500RV
DIP through-hole package, vertical 180° network port, 2.5KV electromagnetic isolation, dual indicators (left yellow, right green).
Applications: Industrial vertical installation equipment, control terminals requiring clear indicator status differentiation.
II. Network Transformers
HRW5500TE
SOP-16 package, single port, 1.5KV electromagnetic isolation, general-purpose type, excellent return loss.
Applications: Embedded general-purpose modules, industrial PLC auxiliary circuits, consumer electronic interface units.
HRW5500TP
SMD-16 package, single port, 1.5KV electromagnetic isolation, surface-mount for automated production, compact structure.
Applications: Mass-produced consumer electronics, small smart sensors, space-constrained terminals.
HRW5500TT
SMD-16 package, single port, 1.5KV electromagnetic isolation, ultra-thin structure.
Applications: Ultra-thin smart devices, portable networking terminals, embedded circuits in confined spaces.
Quick Selection Guide
| Decision Dimension | Criteria | Recommended Models (RJ45) |
|---|---|---|
| PCB Space | Need separated or integrated design? | Integrated: HRW5500RS, HRW5500RV, HRW5500RE |
| Port Orientation | Need vertical or horizontal port? | Vertical: HRW5500RV Horizontal: HRW5500RE, HRW5500RS |
| Package Type | Need surface-mount or through-hole? | Surface-mount: HRW5500RS Through-hole: HRW5500RV, HRW5500RE |
| Decision Dimension | Criteria | Recommended Models (Transformers) |
|---|---|---|
| PoE Support | Need Power over Ethernet? | PoE supported: HRW5500TP |
| Height Requirement | Need ultra-thin design? | Ultra-thin: HRW5500TT |
Core Parameters & Feature Comparison Table
Network Connectors
| Model | Core Configuration | Key Features | Typical Applications |
| HRW5500RE | DIP/Horizontal 90°/2.5KV/10/100Mbps Auto-MDIX | Dual indicators (left green, right yellow) | Industrial standard sensor gateways, embedded simple terminals |
| HRW5500RS | SMD/Horizontal 90°/2.5KV/10/100Mbps Auto-MDIX | Dual indicators, automated production compatible | Consumer electronic devices, industrial terminals in high-frequency EM environments |
| HRW5500RV | DIP/Vertical 180°/2.5KV/10/100Mbps Auto-MDIX | Dual indicators (left yellow, right green), vertical installation | Industrial vertical equipment, terminals requiring indicator differentiation |
Network Transformers
| Model | Core Configuration | Key Features | Typical Applications |
| HRW5500TE | SOP-16/Single port/1.5KV/10/100Mbps | General-purpose, excellent return loss, no PoE | Embedded modules, PLC auxiliary circuits, consumer electronic interfaces |
| HRW5500TP | SMD-16/Single port/1.5KV/10/100Mbps | Surface-mount package, automated production, compact structure | Mass-produced consumer electronics, small sensors, space-constrained terminals |
| HRW5500TT | SMD-16/Single port/1.5KV/10/100Mbps | Ultra-thin structure, balances slim design with stability | Ultra-thin smart devices, portable terminals, circuits in confined spaces |
Common Selection Q&A
Q1: How to choose between through-hole (DIP) and surface-mount (SMD) packages?
A1: Through-hole types are suitable for manual soldering and small-batch scenarios; surface-mount types are optimized for automated mass production and space utilization efficiency, suitable for high-density layouts.
Q2: What is the core value of network indicator lights?
A2: They provide visual feedback on link status and data transmission activity, simplifying device debugging and troubleshooting, making them suitable for equipment requiring on-site maintenance.
Q3: Is higher electromagnetic isolation voltage always better?
A3: Selection should be based on actual needs. Industrial/outdoor equipment should choose 2.5KV for enhanced anti-interference capability, while standard consumer electronics can choose 1.5KV to balance cost and practicality.
Typical Application Case References
Network Connectors:
HRW5500RS: Mini Ethernet dongles, small PLCs, smart gateways
HRW5500RE: Legacy NICs, set-top boxes, medical monitoring devices
HRW5500RV: Desktop routers, industrial switches, security NVRs
Network Transformers:
HRW5500TT: Ultra-thin mini network cards, PC cards, ultra-thin industrial gateways
HRW5500TE: Industrial control cards, general-purpose routers, set-top boxes
HRW5500TP: PoE cameras, PoE wireless APs, PoE access control systems