FEATURES / BENEFITS

•Helpstoprotectagainstdamagecausedbydevicemalfunctionsthatcanleadtofireorinjury

•HelpsLEDlightingmanufacturersmeetinternationalsafetystandards

•Coordinatedovercurrent,overvoltage,andhightemperaturecircuitprotectionforLEDlightingapplications

•Manyproductformfactorsgiveengineersmoredesignflexibility

•Compatiblewithhighvolumeelectronicsassembly

•Devicecharacteristicstunedtolightingelectronicsneeds

•RoHSandELVcompliant

APPLICATIONS

•Powerinputprotectionfromvoltageandcurrenttransients

•Emergencylightingbatteryprotectionfromovercurrentandheat

•LiquidCrystalDisplay(LCD)screenprotectionfromshortcircuitandoverloadingofLEDbacklightingdevices

•High-voltageprotectionforClass2powersuppliesusedforlowvoltageLEDlightingfixtures

•High-temperatureprotectiontoextendLEDlifeinACLEDlightingproducts

•ElectrostaticDischarge(ESD)protectionofLEDs

Quick Reference GuideLightEmittingDiode(LED)LightingApplications

te.com

LED Lighting ApplicationsTE Connectivity

Of all the technologies under development in the lighting

world,LEDtechnologyistheonethatwillradicallychangethe

market in the immediate future. This technology is not new.

Improvedchipdesignsandmaterialshaveallowedforbrighter

and longer-lasting light sources that can be used in a wide

spectrumofapplications.

ThoughLEDsholdthepromiseoflongerlifespans,youmust

takeintoaccountthatLEDlifespandependsonanumberof

factors. The lifespan of an LED is a function of the junction

temperature,operatingvoltage,andoperatingcurrent.Product

designersneed to takeextrasteps toensure that thesenew

lightingproductsareproperlyprotectedfromanexcessofany

ofthesefactors.

Andtoensurethatthisnewtechnologyenjoysthesamelevel

of acceptance and consumer confidence as other lighting

technologies, product designers need to take extra steps to

ensure that their LED lighting products meet international

safetystandards.

PolySwitchDevice

LEDs

LEDDriver

PESD PESD

+

_

PolyZenDevice

LVR Device

MOVAC

InputPowerSupply

R1

(L)

(N)

Section A Section B Section C

LED HEAT MANAGEMENT

Problem: LEDs Generate Heat

MostoftheelectricalenergysuppliedtoanLEDischangedto

heat,notlight.Ifnotdealtwith,theheatwillreducetheLED’s

lifeandalterthequalityofthelightthatisproduced.

Solution: PolySwitch Devices

ConnectaPolySwitchdeviceinserieswiththeLEDtoprovide

overcurrentprotection. Inaddition toovercurrentprotection,

thePolySwitchdevicecanprovideovertemperatureprotection

ifitisthermallybondedtothemetalcorecircuitboardorLED

heatsink.

PolySwitchDevice

LEDs

LEDDriver PESD PESD

+

_

PROTECT THE LED

Figure2

Figure1

2

te.com

LED Lighting ApplicationsTE Connectivity

LEDDriver

_

POWER INPUT PROTECTION

Problem: Power Line Coupled Transients and Surges Reduce

LED Life

Various high voltage events in LED environments will

significantlyreduceLEDlifetime.

Solution: PolySwitch LVR Devices and MOV Metal Oxide

Varistors

AMetalOxideVaristor (MOV)placedacross the inputhelps

provideovervoltageprotectionintheLEDmodules.

LED DRIVER INPUT PROTECTION

Problem: LED Drivers Connected to Improper DC Supply

ManyLEDdriversaresusceptibletodestructionbyimproper

DCvoltagelevelsandpolarity.

Solution: PolyZen Devices

PlacingaPolyZendeviceontheinputoftheLEDdriverhelps

protectyourdriverfrominadvertentexposuretoovervoltage

andreversepolarityevents.

MOVAC

InputPoweSuppl

R1

(L)

(N)

LVR Device

ry

PolySwitchDevice

LEDs

LEDDriver PESD PESD

+

_

+_PolyZenDeviceDC In

Note: AnLVRdevicecouldbeplacedbeforeorafter theMOV.Figure3 isanexampleofplacinganLVRdevicebeforetheMOV.ManyequipmentmanufacturerspreferprotectioncircuitscombiningresettablePolySwitch devices with upstream fail-safe protection. R1 in this example is a ballast resistor thatforcestheworst-casefaultcurrenttoremainwithinthespecifiedlimitsoftheLVR.R1isnotafail-safeprotectiondevice.Afusewouldbeanexampleoffail-safeprotection.

LED DRIVER CIRCUIT OUTPUT PROTECTION

Problem: LED Driver Output Faults

LED driver outputs may be damaged or destroyed if

inadvertentlyshorted.

Solution: PolySwitch Devices

Intheeventthedrivercircuitdoesnotrequireinputprotection

thedriveroutputcan still beprotected fromshort circuitor

otherloadanomalies.PolySwitchdevicesmaybeusedtohelp

protectdriveroutputsfrominadvertentshortcircuitsorother

loadanomalies.

Figure3

Figure4

Figure5

PolySwitchDevice

LEDs

PESD PESD

+

3

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LED Lighting ApplicationsTE Connectivity

LED ELECTROSTATIC DISCHARGE PROTECTION

Problem: LEDs Subject to ESD (Electrostatic Discharge)

ESDdamagetoanLEDcancauseprematurefailure.

Solution: TE PESD Protection Device

If an LED does not have built-in ESD protection, a PESD

protection device placed in parallel with the LED can help

protectagainstESDdamage.

LOW VOLTAGE LUMINAIRES

Problem: Assuring Class 2 Power Supplies Meet Safety Standards

UsingaClass2powersource ina lightingsystemcanbean

important factor for reducing the cost and improving the

flexibilityofalightingsystem.

Solution: PolySwitch Devices and MOV Metal Oxide Varistors

Inherentlylimitedpowersources-atransformer,powersupply,

orbattery-mayhaveprotectivedevicesas longastheyare

notreliedupontolimittheoutputoftheClass2supplies.Non-

inherentlylimitedpowersourcesbydefinition,haveadiscrete

protective device that automatically interrupts the output

whenthecurrentandenergyoutputreachesaprescribedlimit.

TE Circuit Protection provides designers with a wide range

of circuit protection devices that help ensure safe operation

ofClass2powersourcesforLEDlightingapplications.Asan

example, inFigure7, theadditionofanMOV incoordination

withaPolySwitchdeviceonanoutputcircuitbranchenablesa

powersupplytomeettherequirementsofUL1310paragraph

35.1overloadtestonswitchesandcontrols.

LEDs

PESD PESD

PolySwitchDevice

ACInput

LV ACOutput

MOV

(L)

(N)

MOV

Figure7

Figure8

Figure6

4

LED BACKLIGHTING FOR LCD SCREENS

Problem: Thermal Runaway

If the cooling vents in a monitor become blocked, the heat

generatedby theLEDbacklightingcan increaseand lead to

thermalrunawayiftheLEDdrivercircuitisaconstantvoltage

orconstantluminousfluxtype.

Solution: PolySwitch Devices

Carefulconsiderationmustbeusedtodetermineanappropriate

locationtothermallybondthePolySwitchdeviceintheoptimum

locationtointerruptthecurrentintheeventtheLCDisoperated

whentheventsareblockedintheLCDhousing.

te.com

LED Lighting ApplicationsTE Connectivity

LUMINAIRES

ACCENT LIGHTING

DISPLAY TECHNOLOGY

INDUSTRIAL AND COMMERCIAL PRODUCTS

IT EQUIPMENT

SIGNS

Overcurrent Circuit Protection

Overvoltage Circuit Protection

ThermalProtection

HybridProtection

PolySwitchDevices

Fast-ActingChip Fuses

Slow-BlowChip Fuses

PolySwitchDevices

RTPDevices

2ProDevices

PolyZenDevices

GDT PESD SESD

LED LIGHTING APPLICATION SOLUTION GUIDE

INDOOR LED LIGHTING FUSE GUIDE

5

X X X X X X X

X X X X X X

X X X X X X

X X X X X X

X X X X X

X X X X X X X

Indoor

Outdoor

LCD TV

LCD Computer Monitor

Stage and Studio

Emergency

Back-lit Monitors

X X X X X X X X

X X X X X X X X

X X X X X X X

X X X X X X

X X X X X X

X

X X X X X X X X

X X X X

X X X X X X

X X X X X X X X X

X X X X

X X X X X X X X

X X X X X X X X

X X X X X X

Luminaires

• Low Voltage

• AC Voltage

Recessed Lighting

Track Lighting

Underwater

RV

Portable Luminaires

Dimmer

Channel Letter

Changing Message

Sign Accessories

• LED Power Supplies

• LED Drivers

X X X X X

Power Source Products Region Voltage Surge RequirementTE Fuse

Recommendation

AC

• AType• EType• PARType• DownLighting• G-globe• Candelabra• R-reflector• MRType

NorthAmerica(USA)

EPAEnergyStarProgramRequirementsforIntegralLEDLamps(Version1.4)perIEEE

C.62.41.2-2002CategoryA–2.5kVRingWave

2410SFV1.00FM/125-22410SFV2.00FM/125-2

Europe/Asia/Australia

IEC61547EquipmentforGeneralLight-ingPurposesper

IEC61000-4-5

<25WLightBulb–500V/250A

2410SFV1.00FM/125-2

>25WLightBulb–1kV/500A

2410SFV2.00FM/125-2

DC

• MRType• T8/T5Tube• PowerSupply-DCOutput

(UL1310Class2PowerUnit)-Troffer-MRType

Global NoRequirement

0603SFP200F/32-20603SFP250F/32-20603SFP300F/32-21206SFP200F/63-21206SFP250F/32-21206SFP300F/32-2

BrazilTel :55-21-3958-0937

UK / Ireland / Benelux / Israel /South Africa / France / Italy / Portugal / Turkey / Greece / SpainTel :33-1-34208455Fax :33-1-34208479

Germany / Austria / Switzerland / Baltic / Eastern Europe / Nordic / OthersTel :49-89-6089485Fax :49-89-6089394

JapanTel :81-44-844-8130Fax :81-44-844-8040

KoreaTel :82-2-3415-4654Fax :82-2-3486-1786

TaiwanTel :886-2-2171-5213Fax :886-2-8768-1277

China, Hong KongTel :852-2738-8181Fax :852-2735-0243

China, BeijingTel :86-21-6106-7597Fax :86-21-6485-3255

China, ShanghaiTel :86-21-6106-7379Fax :86-21-6485-3255

China, Shenzhen / GuangzhouTel :86-755-2515-4780Fax :86-755-2598-0419

Thailand / Malaysia / VietnamTel :60-4-810-2112Fax :60-19-472-5628

Singapore / Indonesia / Australia / PhilippinesTel :63-2-988-9465Mobile:63-918-942-2360Fax :63-2-848-0205

IndiaTel :91-80-4011-5647Mobile:91-99-0248-8886

TE Circuit Protection308ConstitutionDrive

MenloPark,CAUSA94025-1164

Tel :(800)227-7040,(650)361-6900

Fax:(650)361-4600

www.circuitprotection.com

www.circuitprotection.com.cn(Chinese)

www.te.com/japan/bu/circuitprotection/(Japanese)

PartnumbersinthisbrochureareRoHSCompliant*,unlessmarkedotherwise.*asdefinedwww.te.com/leadfree

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©2013TycoElectronicsCorporation,aTEConnectivityLtd.company.AllRightsReserved.

RCP0050E06/2013

2Pro,PolySwitch,TEConnectivity,TEconnectivity(Logo)andTE(logo)aretrademarks.Otherlogos,product

and/orcompanynamesmightbetrademarksoftheirrespectiveowners.

While TE has made every reasonable effort to ensure the accuracy of the information in this brochure, TE does not guarantee that it is error-free, nor does TE make any other representation, warranty or guarantee that the information is accurate, correct, reliable or current. TE reserves the right to make any adjustments to the information contained herein at any time without notice. TE expressly disclaims all implied warranties regarding the information contained herein, including, but not limited to, any implied warranties of merchantability or fitness for a particular purpose. The dimensions in this catalog are for reference purposes only and are subject to change without notice. Specifications are subject to change without notice. Consult TE for the latest dimensions and design specifications.

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