통합형 RJ45 커넥터의 주요 사양 이해하기

스마트 게이트웨이, 스마트 TV, 보안 카메라에 탑재된 통합 RJ45 커넥터—also known as magnetics RJ45 jacks or RJ45 with built-in transformers—are essential components in Ethernet communication systems. These connectors combine standard RJ45 interface functionality with integrated magnetics, simplifying PCB design while improving signal integrity and EMI performance.

This guide introduces the key performance parameters of integrated RJ45 connectors, categorized into five main sections: 구리 트윈액스(twinax)를 통한 전기 신호 전송. 매우 짧은 거리(< 7m)에 최적화됨. 낮은 전력 소비, 낮은 비용, 최저 지연 시간. 랙 내부에서 주로 사용됨., mechanical, environmental, 준수, 와 other features. Understanding these parameters will help engineers and purchasing teams make smarter component decisions.

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🔌 I. Electrical Performance Parameters

1. 데이터 전송 속도
   Integrated RJ45 connectors support various Ethernet speeds, including:

   • 10/100Mbps (Fast Ethernet)

   • 1000Mbps (Gigabit Ethernet)

   • 2.5G, 5G, and 10G Ethernet (for high-speed applications)

2. 삽입 손실:
   Indicates how much signal is lost as it passes through the connector.

   • Typical: ≤ 1 dB (varies by frequency and speed)

3. 반사손실(Retrun Loss)
   Measures how much signal is reflected due to impedance mismatch.

   • Common requirement: ≥ 16 dB @ 100MHz

4. 크로스토크
   Crosstalk refers to signal interference between adjacent pairs.

   • Good integrated RJ45 connectors meet IEEE 802.3 standards for crosstalk isolation.

   • 유형:

     • NEXT(근단 간섭, Near-End Crosstalk)

     • FEXT(원단 간섭, Far-End Crosstalk)

5. Hi-Pot Test Voltage (Isolation Voltage)
   Ensures safe electrical isolation between signal and power circuits.

   • Standard value: 1500Vrms for 60 seconds

   • Critical for PoE safety

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⚙️ II. Mechanical Specifications

1. 마운팅 방식

   • THT (Through-Hole Technology)

   • SMT

     (표면 실장 기술)

   • Vertical or Right-Angle orientation options

2. 핀 구성

   • Standard or custom pin layouts (Tab-Up / Tab-Down)

   • T568A/B compatible for network standards

3. LED 표시등

   • Built-in LEDs (green/yellow or bi-color) for link and activity indication

4. Mechanical Dimensions

• Specifies the outer and PCB-related sizes, includes:

  • Body size

  • Pin length

  • Port count: Single (1×1), Dual (1×2), Quad (2×2)

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🌡️ III. Environmental Specifications

1. 작동 온도 범위

• Commercial grade: 0°C to +70°C

• Industrial grade: -40°C to +85°C

2. Storage Temperature

• Typically: -40°C to +85°C

3. Humidity Resistance

• Required for high-reliability or outdoor use

• Common benchmark: 95% RH non-condensing

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📑 IV. Compliance & Compatibility

1. Industry Standards

• IEEE 802.3 series (10/100/1000Base-T, 2.5G, 10GBase-T)

• IEEE 802.3af / 802.3at / 802.3bt (PoE compatibility)

2. Environmental Directives

• RoHS and REACH compliance (lead-free, eco-friendly)

3. Safety Certifications

• UL / CE / FCC approvals (as applicable)

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🧩 V. Additional Features

1. Shielding Type

• Shielded (metal housing)

• Unshielded versions available

• Optional EMI fingers for enhanced grounding

2. Integrated Magnetics

• Built-in magnetic components:

  • 공통모드 차단기

  • Differential-mode chokes

  • 절연 변압기

• Ensures signal integrity and suppresses EMI

3. Integrated Protection

• Optional built-in TVS (Transient Voltage Suppression)

• Provides electrostatic and surge protection

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📊 Quick Reference Specification Table: LINK-PP LPJ26204ADNL

The LINK-PP LPJ26204ADNL is a dual-port integrated RJ45 connector designed for 10/100 Base-T Ethernet applications.

사양	설명
부품 번호	LPJ26204ADNL
데이터 전송 속도	10/100 Mbps
포트 수	Dual (1×2)
마운팅 방식	홀형(Through-Hole, THT)
Tab Orientation	Tab Down
LED 표시등	Yellow/Green
차폐(Shielding)	Shielded
준수 표준	IEEE 802.3, UL, RoHS, REACH, ISO9001, ISO14001
작동 온도	0°C ~ +70°C
응용 분야	Patient care devices, handheld devices, operation generators

📄 Download LPJ26204ADNL Datasheet (PDF)

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✅ 결론

Understanding the core specifications of Magnetic RJ45 connectors is crucial when designing or sourcing networking hardware. Whether your focus is on signal quality, PoE capability, EMI shielding, or environmental durability, these parameters help ensure you choose the right component for your application.

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