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H1102NLT

Single-port 10/100 Ethernet magnetic RJ-45 module, 1:1 CT, 1500Vrms

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Manufacturer Part：

H1102NLT

Package：

Integrated RJ-45 module (16.5 x 14.2 x 13.8 mm)

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Description

Product Overview

The H1102NLT from Pulse Electronics (Yageo) is a single-port 10/100Base-TX Ethernet transformer module with integrated RJ-45 connector and magnetics. Designed for use with 10/100 Ethernet PHY transceivers such as the RTL8201F.

Key Specifications

Function Single-port 10/100 Ethernet magnetics + RJ-45
Supported Speed 10Base-T / 100Base-TX
Turns Ratio 1:1 (CT)
Isolation Voltage 1500Vrms
OCL Min 350uH
Package Integrated RJ-45 module
Operating Temperature 0°C to +70°C

Features

  • Single-port RJ-45 with integrated magnetics
  • Center-tapped transformer for PHY connection
  • Built-in common-mode choke for EMI suppression
  • 1500Vrms isolation voltage
  • Compliant with IEEE 802.3i/u
  • LED indicators for link/activity

Applications

  • Embedded Ethernet interface for MCU/SoC
  • Industrial controller Ethernet ports
  • Set-top box and IPTV LAN interface
  • Network printer connectivity
  • Home router 10/100 LAN ports

The H1102NLT from Pulse Electronics (now Yageo) is a single-port 10/100Base-TX Ethernet magnetic module integrating the RJ-45 connector, isolation transformer, and common-mode choke in a single package. The center-tapped transformer provides galvanic isolation (1500Vrms) and impedance matching between the Ethernet PHY transceiver and Cat5 cable. The integrated common-mode choke suppresses EMI for EMC compliance. LED pins are provided for link and activity indication. The module pairs directly with RTL8201F and similar PHY transceivers.

The H1102NLT integrates an isolation transformer, common-mode choke, and RJ-45 connector. The isolation transformer provides galvanic isolation between the PHY and cable, protecting against voltage surges and ground loops. The center tap connects to the PHY center-tap pins via capacitors for DC biasing. The common-mode choke suppresses common-mode noise on TX/RX pairs, reducing radiated EMI. The RJ-45 connector provides the physical Cat5 cable interface.

Pin Name Type Function
1 TXCT Analog Transmit center tap
2 TX+ Analog Transmit positive (to PHY TXP)
3 TX- Analog Transmit negative (to PHY TXN)
6 RX+ Analog Receive positive (to PHY RXP)
7 RX- Analog Receive negative (to PHY RXN)
8 RXCT Analog Receive center tap
9-10 LED1/LED2 Output Link and activity LEDs
  • Embedded MCU Ethernet (STM32 + RTL8201F + H1102NLT)
  • Industrial PLC and HMI Ethernet interface
  • Set-top box and smart TV LAN port
  • Network printer Ethernet connectivity
  • Home router 10/100 LAN port
Manufacturer Part Number Package Notes
Pulse/Yageo H1102NL RJ-45 module Without LED
Wurth 7499100121A RJ-45 module Single-port, integrated magnetics
Bel Fuse S558-5999-T7 RJ-45 module Single-port 10/100 magnetic
TE 1840806-1 RJ-45 module Single-port with LEDs
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All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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