Skip to content. | Skip to navigation

Personal tools

The Global
Information Hub for
Lighting Technologies
and Design

Sections
Home > Components & Tools > Electronics & Smart Controls > Shunt Protectors for Sensitive LED Lighting Applications
Products, Materials + Tools | Feb 17, 2011

Shunt Protectors for Sensitive LED Lighting Applications

Bourns is pleased to announce the release of LED Shunt Protector products for the LED lighting market. In LED lighting applications, solid-state lighting luminaires are commonly confi gured with long strings of multiple series LEDs driven from a relatively high voltage compliance, constant current power supply. In that confi guration an open LED will cause a complete LED string to go dark, rendering the application useless or markedly compromised. This can lead to warranty returns or maintenance calls.

While low power LED string designs may have used zener diodes in this confi guration, high power LEDs would require very large and expensive zener diodes. Placing the Bourns® LSP device across LEDs allows the remaining LEDs in a series string to continue to work when an LED fails open circuit.

Features:
■ Fast switching
■ Automatic reset
■ SMB package
■ Suitable for industrial lighting environments
■ RoHS compliant*

Applications:
■ LED streetlights
■ LCD backlighting
■ Display lighting
■ Intrinsically safe lighting

The LSP-Series open LED shunt protectors include four models:  LSP0600BJR-S, LSP0900BJR-S, LSP1300BJR-S and LSP1800BJR-S.  A maximum level of protection can be obtained by using one LSP0600BJR-S device per LED. 

Alternatively, customers can reduce their protection costs by using the LSP0900BJR-S, LSP1300BJR-S or LSP1800BJR-S devices, that are able to isolate groups of two, three or four LEDs respectively.  The devices come in an SMB surface mount package and are RoHS compliant.

FEATURED

Emergency Lighting Just Got Smarter

Emergency Lighting Just Got Smarter NEW NOW: OSRAM’s standalone solution for emergency lighting testing, reporting and maintenance. Meet the QBM DALI EL-T CONV, a converter transforming existing DALI emergency luminaires into wireless ones, all controlled by the same lighting system. Its benefits? Allowing you to design all the ... Read more »

FEATURED

Continuous versus Discrete Calibration Sources: Consideration for Use

Continuous versus Discrete Calibration Sources: Consideration for Use Rapid advancements in the field of solid-state lighting have presented opportunities for the use of LED-based systems for calibrations typically performed with lamp-based sources. Their highly efficient and long-lived performance, rapid power up, and compact size have made LED-based sources an ... Read more »

FEATURED

LUXTECH Offers First Compelling Flex Modules Designed to Replace Traditional Rigid Modules: LUXroll (UL Listed)

LUXTECH Offers First Compelling Flex Modules Designed to Replace Traditional Rigid Modules:  LUXroll (UL Listed) The Indirect Costs of Using Rigid Boards Make Switching to Flexible LED Modules a Compelling Choice. Read more »

EDITORIAL

New LUXEON Rubix Cyan LED Enables 96-98 CRI Across CCT Range in Color Driven Solutions for Entertainment, Stage, and Studio

New LUXEON Rubix Cyan LED Enables 96-98 CRI Across CCT Range in Color Driven Solutions for Entertainment, Stage, and Studio Lumileds added cyan, its eighth color, to the LUXEON Rubix high-power LED family enabling multi-color driven systems to produce very high CRI white light that is so important in entertainment lighting. Adding the cyan LED fills a significant wavelength gap between blue and green in a system and ... Read more »

EDITORIAL

New date: Light + Building Autumn Edition 2022

New date: Light + Building Autumn Edition 2022 Frankfurt am Main, January 10, 2022. As the pandemic situation continues to develop very dynamically, Messe Frankfurt is postponing the world's leading trade fair for light and building technology to autumn 2022. Last December, intensive discussions with customers and cooperation partners had ... Read more »

page_peel