١٢. فهم المواصفات الرئيسية للموصِّلات المدمجة من نوع RJ45

٢٦. موصلات RJ45 مدمجة—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: ١٧. إشارات كهربائية, mechanical, environmental, التوافق, ٢٩.‏ ، و other features. Understanding these parameters will help engineers and purchasing teams make smarter component decisions.

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🔌 I. Electrical Performance Parameters

1. ٧. معدل نقل البيانات
   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. ١١. فقد الإدخال
   Indicates how much signal is lost as it passes through the connector.

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

3. ١٣.‏: فقدان العائد
   Measures how much signal is reflected due to impedance mismatch.

   • Common requirement: ≥ 16 dB @ 100MHz

4. ٢١. التداخل الكهرومغناطيسي (Crosstalk)
   Crosstalk refers to signal interference between adjacent pairs.

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

   • ٣٥. الأنواع:

     • ٣٢. NEXT (التشويش من الطرف القريب)

     • ٣٤. FEXT (التشويش من الطرف البعيد)

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. ١٠. نوع التركيب

   • ٢٠. THT (Through-Hole Technology)

   • ١. تقنية التوصيل السطحي (SMT) ٤٠. (تقنية التثبيت على السطح)

   • Vertical or Right-Angle orientation options

2. تكوين الأطراف

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

   • T568A/B compatible for network standards

3. ١٩. مؤشرات LED

   • 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. ٢. نطاق درجة حرارة التشغيل

• 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:

  • ٣. مقاومات التشويش ذات الوضع المشترك

  • Differential-mode chokes

  • محولات العزل

• 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

٣٩. إنَّ ٤٠. LINK-PP ٣. LPJ26204ADNL is a dual-port integrated RJ45 connector designed for 10/100 Base-T Ethernet applications.

٤. المواصفات	٥. الوصف
٤. رقم القطعة	٣. LPJ26204ADNL
٧. معدل نقل البيانات	٣. ١٠/١٠٠ ميجابت في الثانية
٦. عدد المنافذ	Dual (1×2)
١٠. نوع التركيب	٣. الثقوب المُخترِقة (THT)
Tab Orientation	Tab Down
١٩. مؤشرات LED	Yellow/Green
١٦.‏ التحمية	٢٥. مدرع
٣٤.‏ المعايير المتوافقة معها	IEEE 802.3, UL, RoHS, REACH, ISO9001, ISO14001
٣٩. درجة حرارة التشغيل	١٨. من ٠°م إلى +٧٠°م
حلول الشبكات الصناعية	Patient care devices, handheld devices, operation generators

📄 Download LPJ26204ADNL Datasheet (PDF)

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✅ الخاتمة

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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