Interested in communications infrastructure products and applications expertise?

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通讯基础设施

As 4G and 5G networks expand worldwide, designers of radio, computing, and networking equipment must deliver high data rates, low latency, and reliability in all environments.

Littelfuse offers a broad and deep portfolio of energy-efficient solutions that are dependable, affordable, and easy to incorporate into compact designs.


Safety & security

Protecting sensitive business and personal information from unauthorized access.

可靠性

Enabling cell towers and antennas to withstand extreme temperatures, humidity, noise, and interference from nature.

Increased demand

Upgrading global communication infrastructure for wireless data with 5G buildout and continued 4G expansion.

Power efficiency

Using the same or less power while still providing enhanced communication capabilities.

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control
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The Littelfuse Difference

With our history of leadership in the telecom industry, we're uniquely positioned to innovate future-focused communications infrastructure solutions that fit your application's specific needs. 我们提供:

  • Application expertise and design guidelines
  • A comprehensive product portfolio
  • Robust testing capabilities
  • Assistance with standards compliance
  • Responsive sales support

Communications Infrastructure Applications and Products

Cellular base stations and small cells link the wireless signals to the wired telecommunication network.

Cell Tower with Active Antenna
Success
Success
Purpose 技术 解决方案

过载电流
保护

保险丝

1
      
4
881系列
TLS系列
606系列

Surge
保护

瞬态抑制二极管

1
LTKAK10 surface mount high power TVS diode
HMOV Series
LV UltraMOV  Series
CG4系列

Surge
保护

MOV

2
      
3
C-III系列
AK1-Y系列

过载电流
保护

保险丝

3
L17T系列
PSR
JLLS

温度
传感器

热敏电阻

1
      
4
RA系列
RB series
KR series
LR系列

Surge
保护

MOV

4
LV UltraMOV

Surge
保护

SIDACtor

4
Pxxx0SD

Active antenna units transmit or receive radio signals. They also provide a conversion of the radio signal to a baseband signal for use by the baseband unit.

Integrated Active Antenna
Success
Success
Purpose 技术 解决方案

过载电流
保护

保险丝

1
881 series surface mount fuses
TLS系列

Surge
保护

瞬态抑制二极管

1
LTKAK10 surface mount high power TVS Diode

过载电流
保护

PTC

2
      
3
SMD系列

Surge
保护

SIDACtor

2
SEP Series

ESD & Surge
保护

TVS Diose
Array

2
SP3400

静电放电
保护

瞬态抑制二极管

3
SMCJ
SMDJ

静电放电
保护

Polymer ESD
suppressor

4
XGD Series

Baseband units convert communication signals from the telecom network into a format usable by the remote radio or active antenna

Baseband Unit (BBU) Block Diagram
Success
Success
Purpose 技术 解决方案

过载电流
保护

保险丝

1
456系列

Surge
保护

MOV

1
LV UltraMOV Series
TMOV
SM7
SMDJ
AK1-Y series
5.0SMDJ
8.0SMDJ
Pxxx0SD

温度
传感器

热敏电阻

1
RA系列
RB series
KR series
LR系列

静电放电
保护

瞬态抑制二极管

4
SMDJ系列

ESD & Surge
保护

瞬态抑制二极管
Array

2
SP3010

ESD & Surge
保护

瞬态抑制二极管
Array

3
SRV05-4

Network switches provide a connection point for wired devices to communicate with each other. They can provide a connection of the telecom network to baseband units, servers, or routers.

Networking and Data Port Solutions
Success
Success
Purpose 技术 解决方案

Overcurrent & 
overtemperature 
保护

PTC

1
1206L150SLYR Surface Mount PTC

ESD protection
on Vbus

瞬态抑制二极管
Array

2
SP1003瞬态抑制二极管阵列

ESD protection
on data lines

瞬态抑制二极管
Array

3
SESD1103 TVS Diode Array

过载电流
保护

保险丝

4
461 series Telelink surface mount fuse

ESD and surge
保护

瞬态抑制二极管
Array

5
SRV05-04HTG-D TVS Diode Array

ESD and surge
保护

瞬态抑制二极管
Array

6
SP1004U-ULC-04UTG TVS Diode Array

The power supply converts, cleans, stabilizes, and distributes utility power so that it can be used by the cellular communication equipment.

电源设备中的解决方案
Success
Success
Purpose 技术 解决方案

Surge
保护

压敏电阻

1
UltraMOV系列
AK3 series TVS Diode
CG series GDT
Pxxx0SDT + LA系列

过载电流
保护

保险丝

1
505 Series Cartridge Fuse 
487系列
606系列
PSR系列

整流器

整流器
模块

2
      
4
MDD
VUO
MDM

Power Factor
Correction

IGBT

2
      
4
XPT series
Ultra junction X-Class MOSFET

Control power
半导体

栅极驱动器

2
      
3
      
4
      
5
IXD_6xx

Surge
保护

瞬态抑制二极管

2
SMDJ surface mount TVS diode

逆变器

IGBT module

3
      
5
MIXA
MIXG
LSIC1MO SiC MOSFET

整流器

整流器
二极管

5
DSE
LSIC2SD

反馈
controls

Linear error
amplifier

6
LIA 130

过载电流
保护

保险丝

5
881 series SMD Fuse
TLS series
881F series
456系列
protecting-highway-cloud

Protecting The Highway to the Cloud

Because a growing percentage of both business and personal information is stored in the cloud, it's more important than ever to ensure fast, reliable access to this information. Learn how G.fast makes economical high-speed connectivity possible.

Communications Infrastructure Application Notes

protecting-highway-cloud

Ethernet Design Guide

Find the most appropriate circuit protection components for Ethernet-equipped applications with the help of our 34-page design guide. It describes categories of Ethernet (including PoE - Power over Ethernet) and presents example circuits, applicable standards, and recommended components.

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