MIC66211-5171T-LF3/7499210121 RJ45 PoE Connector Rectifier Bridge LPJ4049HDNL
PoE RJ45 Connector MIC66211-5171T-LF3 = 7499210121 Overview
The MIC66211-5171T-LF3/7499210121 is a single-port RJ45 Connector with integrated magnetics (transformer, common-mode choke, and rectifier bridge) designed specifically for 10/100Base-T PoE applications. It features a tab-down side-entry configuration with yellow/green LED indicators, offering compact and reliable connectivity for industrial and networking applications.
- 10/100 Ethernet RJ45 IEEE 802.3af PoE
- 6μ” Gold Plating (min) on Contacts
- 350uH min OCL at 8mA DC Bias Across the
- Full Temp Range Power Over Ethernet RJ45 Magnetics Module
- 100% Electrical Testing
- 1500Vrms Hi-Pot
- Proprietary Robust Contact Design
| Parameter | Specifications |
|---|---|
| Ethernet Interface | 10/100 Base-T PoE (IEEE 802.3af compliant) |
| Integrated Components | Transformer, Common-Mode Choke, Rectifier Bridge |
| Mounting Style | Side Entry, Tab-Down, Through-Hole |
| LEDs | Yellow / Green status indicators |
| Contact Plating | Gold (minimum 6 μ") |
| Inductance (OCL) | ≥ 350 µH at 8 mA DC bias |
| Hi-Pot Isolation Voltage | 1500 Vrms |
| Operating Temperature | –40 °C to +85 °C (typical industrial range) |
| Compliance Standards | IEEE 802.3af, UL, RoHS, REACH, ISO 9001, ISO 14001 (Energy & Environmental) |
| Applications | Monitoring Systems, Industrial PCs, Embedded Main Boards, Solar Inverters, Smart Meters & Gateways |
| Alternate/Compatible P/N | WE 7499210121A / MIC66211-5171T-LF3 |
| Packaging | Tray (SPQ: 50 pcs, Carton: 1,200 pcs; Carton size: 32 × 30 × 31 cm; Gross weight: 8.5 kg) |
ELECTRICAL SPECIFICATIONS @25℃
1.Turn Ratio(±2%):
TX=1CT∶1 RX=1CT∶1
2. Inductance OCL: 350uH MIN
@ 100KHz/0.1V,8mA DC Bias
3. Insertion Loss:
-1.0dB MAX @ 1.0-100MHz
4. Return Loss:
-18dB MIN @ 1-10MHz
-16dB MIN @ 10-30MHz
-12dB MIN @ 30-60MHz
-10dB MIN @ 60-100MHz
5. Cross-talk:
-40dB MIN @ 1-30MHz
-35dB MIN @ 30-60MHz
-30dB MIN @ 60-100MHz
6. Common Mode Rejection:
-30dB MIN @ 1-50MHz
-20dB MIN @ 50-150MHz
7. Hipot Test: 1500Vrms MIN
8. Operating Temperature Range: -40℃ TO +85℃.
RJ45 Connector Datasheet
FAQ
1. What is a PoE RJ45 Connector?
A PoE (Power over Ethernet) RJ45 connector integrates Ethernet magnetics and sometimes rectifiers, allowing both data and power to be transmitted over a single Ethernet cable. It simplifies PCB design and supports devices like IP cameras, VoIP phones, and industrial controllers.
2. How does a PoE RJ45 Connector differ from a standard RJ45 connector?
Unlike standard RJ45 connectors, a PoE RJ45 connector features built-in magnetics (transformers and chokes) and PoE compatibility, enabling safe power delivery (as per IEEE 802.3af/at/bt standards) alongside data transmission.
3. What are the typical applications of PoE RJ45 connectors?
- IP security cameras
- Wireless access points
- Industrial PCs and monitoring systems
- Smart meters and IoT gateways
- VoIP phones
- Renewable energy devices like solar inverters
4. What standards do PoE RJ45 connectors support?
Most PoE RJ45 connectors comply with:
- IEEE 802.3af (PoE, up to 15.4W)
- IEEE 802.3at (PoE+, up to 30W)
- Some advanced models support IEEE 802.3bt (PoE++ / 4PPoE, up to 60–90W).
5. How to choose the right PoE RJ45 connector?
Key factors to consider:
- Supported data rate (10/100Base-T, Gigabit, or higher)
- PoE power level (af, at, or bt)
- Operating temperature range
- Hi-pot isolation voltage
- LED indicators (for link/activity status)
- Compliance with UL, RoHS, and REACH
6. Are PoE RJ45 connectors backward compatible?
Yes. A PoE RJ45 connector can still work with non-PoE devices because power delivery only activates when a compatible powered device (PD) is detected. This ensures safe operation with legacy Ethernet equipment.
7. What are the advantages of using integrated PoE RJ45 connectors?
- Saves PCB space by combining magnetics and RJ45 in one component
- Improves EMI performance
- Simplifies circuit design and reduces BOM cost
- Provides higher reliability and better thermal performance for industrial environments
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