Year: 2025

LPJ0011BBNL Datasheet PDF – Jack RJ45 Connector Modular

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Part Number: LPJ0011BBNL

Function: 10/100 Base-T Tab down Modular Jack RJ45 connector with LED

Package: Module Type

Manufacturer: LINK-PP

Image :
LPJ0011BBNL datasheet

Description

This is 1 x 1 Port RJ45 Modular Jack , 100Base RJ 45 Modular Connector.

The LPJ0011BBNL is a modular jack, also known as a network interface connector, used in networking and communication systems. It is designed to provide a fast and reliable connection for network cables and is commonly used in both home and office environments. . It is typically found on the back of network devices such as routers, switches, and hubs, as well as on network wall plates for easy access to network connections.

Features

  • Single-port (1×1) RJ45 Ethernet connector
  • Integrated transformer and common-mode choke
  • 350µH minimum OCL (Open Circuit Inductance) @ 8mA bias
  • Compliant with IEEE 802.3 standard
  • Supports PoE / PoE+ (Power over Ethernet)
  • Wide operating temperature: -40°C to +85°C
  • Available in multiple mounting types (SMD, THT, combo with USB)

1. Characteristics:

1) RJ45 Connector with integrated transformer/common mode choke

2) Available in SMD, THT and THT with USB

3) 350µH min. OCL with 8mA bias

4) Complies with IEEE 802.3

5) Extended temperature range -40°C to +85°C available

6) PoE/ PoE+

 

2. Operation/Application:

1) xDSL Modems

2) Embedded PC

3) LAN Applications

4) Hub, Router, Switches

 

Schematic

LPJ0011BBNL-datasheet

Design Notes (Critical Points)

  • Maintain 100Ω differential impedance for TX/RX pairs
  • Keep PHY-to-RJ45 traces short and well-matched
  • Separate analog ground (PHY side) and chassis ground (shield)
  • Proper placement of Bob Smith termination (if required)
  • Ensure PoE design includes correct power extraction circuitry

Advantages vs Discrete Magnetics

  • Reduced PCB area
  • Lower BOM cost and assembly complexity
  • Improved EMI performance (optimized internal layout)
  • Simplified Ethernet compliance design

Applications

  • Routers, switches, hubs
  • Embedded systems with Ethernet (MCU/SoC-based)
  • Industrial LAN devices
  • xDSL modems
  • IP cameras and IoT devices

Alternative / Equivalent Products

  • HanRun HR911105A
  • Pulse Electronics J0011D21BNL

Official Site : https://www.link-pp.net/

LPJ0011BBNL Datasheet PDF

LPJ0011BBNL pdf

Other data sheets are available within the file: LPJ0011, LPJ0011BBNL

 

TMP75B Datasheet – Digital Temperature Sensor ( PDF )

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Part Number: TMP75B

Function: 1.8V Capable Digital Temperature Sensor in Industry Standard LM75 form factor & pinout

Package: SOIC-8 and VSSOP-8 Type

Manufacturer: Texas Instruments

Image

TMP75B datasheet pdf

Description

TMP75B is a low-power, digital temperature sensor with an integrated 12-bit ADC and I²C-compatible interface. It is designed as a drop-in, low-voltage replacement for LM75/TMP75 devices, providing accurate temperature monitoring without requiring external components.

Core Characteristics

  • Integrated temperature sensor + 12-bit ADC
  • I²C (Two-wire) digital interface
  • Supply voltage: down to 1.8V (low-power systems)
  • Pin and register compatible with LM75 / TMP75
  • No external components required

Schematic

components

Functional Description

  • Continuously measures ambient temperature using an internal sensor
  • Converts analog temperature signal into digital data via ADC
  • Outputs temperature data over I²C bus to MCU/processor
  • Includes comparator/interrupt output for threshold-based alerts

Operating Modes

  • Continuous Conversion Mode: periodic temperature updates
  • Shutdown Mode: ultra-low power, conversions on demand
  • Comparator Mode: ALERT triggers when thresholds exceeded
  • Interrupt Mode: latched alert until cleared by host

Pinout

TMP75B datasheet

Design Considerations

  • Place sensor near heat source for accurate monitoring
  • Avoid thermal coupling with PCB power components unless intended
  • Use proper pull-up resistors on SDA/SCL lines (typically 2kΩ–10kΩ)
  • Consider bus capacitance for high-speed I²C operation
  • Implement filtering/averaging in firmware for noise-sensitive systems

Advantages Over Analog Sensors

  • No ADC required in MCU
  • Immune to analog noise and signal degradation
  • Easy multi-device integration via I²C
  • Consistent accuracy across system

Typical Applications

  • Server and CPU thermal monitoring
  • Telecommunication systems
  • Power supply thermal protection
  • Battery management systems (BMS)
  • Industrial and embedded systems

Equivalent / Alternative Devices

  • LM75 (industry standard baseline)
  • TMP75 (earlier TI version)
  • TMP102 (lower power, smaller package)
  • ADT75 (Analog Devices equivalent)

Other data sheets are available within the file:

T75B, TMP75BQDGKRQ1, TMP75BID, TMP75BIDGKR, TMP75BIDGKT

 

TMP75B Datasheet PDF Download


TMP75B pdf