---
title: "WIZnet RJ45 Network Connector Selection Guide"
url: "https://maker.wiznet.io/ronpang/projects/wiznet-rj45-network-connector-selection-guide/"
markdown_url: "https://maker.wiznet.io/ronpang/projects/wiznet-rj45-network-connector-selection-guide/md"
type: "WCC: WIZnet Created Content"
author: "ronpang"
author_url: "https://maker.wiznet.io/ronpang/"
published: "2026-01-23"
language: "en"
likes: 0
views: 708
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# 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.

## Article

## 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.

![](https://maker.wiznet.io/upload/ckeditor5/419353359%5F1769191948%2Epng)

![](https://maker.wiznet.io/upload/ckeditor5/419353359%5F1769191960%2Epng)

## 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

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Source: https://maker.wiznet.io/ronpang/projects/wiznet-rj45-network-connector-selection-guide/