1
FTR-K1 SERIES
(a) Relaytype FBR51 :FBR51Series-Standardtype(contactgap0.3mm)
FBR52 :FBR52Series-Widecontactgaptype(contactgap0.6mm)
(b) Enclosure N :Plasticsealedtype
(c) Coilratedvoltage D12 :6.....12VDC
Coilratingtableatpage3
(d) Contactmaterial W1 :Silver-tinoxideindium(highpowertype)
WL :Silver-tinoxideindium(lamploads,seeapplicationstable)
WF :Silver-tinoxideindium(asherloads)
(e) SpecialtypeTobeassignedcustomspecication
n FEATURES
l Compactandlightweightstructure
l Highcurrentcontactcapacity
(carryingcurrent:35A/10minutes,30A/1hour)
l Highresistancetovibrationandshock
l Improvedheatresistanceandextendedoperationrange
l Twocontactgapoptions
(FBR51:0.3mm,FBR52:0.6mm)
l Threetypesofcontactmaterial
FBR51, 52 Series
COMPACT POWER RELAY
1 POLE - 30A (For Automotive Applications)
n PARTNUMBER INFORMATION
FBR51ND12-W1**
[Example](a)(b)(c)(d)(e)  
2
FTR-K1 SERIES
*Minimumswitchingloadsmentionedabovearereferencevalues.Pleaseperformtheconrmationtestwithactual
loadbeforeproductionsincereferencevaluesmayvaryaccordingtoswitchingfrequencies,environmentalcontions
andexpectedreliabilitylevels.
FBR51, 52 SERIES
n SPECIFICATION
Item W1contact WLcontact WFcontact
Contact
Data
Conguration 1formC(SPDT) 1formA(SPST) 1formA(SPST)
Material
Silver-tinoxide
indium(high
powertype)
Silver-tinoxideindium
Voltagedrop(resistance) Max.100mV
at1A/12VDC Max.100mVat2A/12VDC
Contactrating 14VDC,25A
(motorfreeload)
120Wattlamp,
at14VDC
80Wattlampat
14VDC
Max.carryingcurrent 35A/10minutes,30A/1hr(25°C,100%ratedcoil
voltage)
Max.inrushcurrent(reference) 60A 80A
Max.switchingvoltage(reference) 16VDC
Max.switchingcurrent(reference) 35A
Min.switchingload(reference)* 6VDC,1A
Life Mechanical Min.10x106operations
Electrical
Min.2x105
operations
4VDC,25A
(Lockedmotor
load)
Min.1x105
operations
115Wattlamp,
14VDC
Min.2.5X106
operations
Inrush11A,
14VDC
(0.35sec-ON/
0.35sec-OFF)
CoilData Ratedpower FBR51:600mW,FBR52:800mW
Operatepower FBR51:220mW,FBR52:300mW
Operatingtemperaturerange -40°Cto+85°C(nofrost)
Storagetemperaturerange -40°Cto+100°C(nofrost)
TimingData Operate(atnominalvoltage) Max.10ms
Release(atnominalvoltage) Max.5ms
Other Vibrationresistance 10to55Hzdoubleamplitude1.5mm
Shock Misoperation 10m/s²
Endurance 1,000m/s²
Weight Approximately6g
3
FTR-K1 SERIES
n COIL RATING
FBR51, 52 SERIES
Coil
Code
RatedCoil
Voltage(VDC) CoilResistance+/-10%(Ohm) MustOperateVoltage
(VDC)*
Thermalresistance
(K/W)
D06 6 60 3.6(at20°C)
73
4.5(at80°C)
D09 9 135 5.4(at20°C)
6.8(at80°C)
D10 10 180 6.3(at20°C)
7.9(at80°C)
D12 12 240 7.3(at20°C)
9.2(at80°C)
FBR51Series
Coil
Code
RatedCoil
Voltage(VDC) CoilResistance+/-10%(Ohm) MustOperateVoltage
(VDC)*
Thermalresistance
(K/W)
D06 6 45 3.6(at20°C)
65
4.5(at85°C)
D09 9 100 5.4(at20°C)
6.8(at85°C)
D10 10 135 6.3(at20°C)
7.9(at85°C)
D12 12 180 7.3(at20°C)
9.2(at85°C)
FBR52Series
Note:Allvaluesinthetablearevalidfor20°Candzerocontactcurrent.
*Speciedoperatevaluesarevalidforpulsewavevoltage.
4
FTR-K1 SERIES
n SUITABLE APPLICATIONS
FBR51, 52 SERIES
Application Normal load current
(12 VDC system) Description
Recommended model
(example)
For 16V or less
motor load
voltage
For instantaneous
20V or more load
voltage
Powerwindows 20Ato25A
(switchingatmotorlocking
forwardandreverse
motorcontrol
FBR51N()-W1 FBR52N()-W1
Automaticdoor
lock
18Ato25A
(switchingatmotorlocking
forwardandreverse
motorcontrol
FBR51N()-W1 FBR52N()-W1
Tilt-lockwheel 20A
(switchingatmotorlocking)
forwardandreverse
motorcontrol
FBR51N()-W1 FBR52N()-W1
Sunroof 20Ato30A
(switchingatmotorlocking)
forwardandreverse
motorcontrol
FBR51N()-W1 FBR52N()-W1
Adjustabledoor
mirror
3Ato5A
(switchingatmotorlocking)
forwardandreverse
motorcontrol
FBR51N()-W1
Automatic
antenna
8Ato12A(Inrush)break2A
maximum(motor-free)
forwardandreverse
motorcontrol
FBR51N()-W1
Auto-cruise 2Ato3A powershutoffand
solenoid
FBR51N()-W1
Lamploads 120Watts upto100K
operations
FBR51N()-WL
Others:Caraudiosystems,etc. FBR51N()-W1
•Fortheloadconditionwherehighervoltagewouldbeencounteredduringcontactbreak,FBR52serieswith
widercontactgapisrecommended.
n CHARACTERISTIC DATA
5
FTR-K1 SERIES
FBR51, 52 SERIES
6
FTR-K1 SERIES
FBR51, 52 SERIES
7
FTR-K1 SERIES
FBR51, 52 SERIES
n REFERENCE DATA
8
FTR-K1 SERIES
FBR51, 52 SERIES
n DIMENSIONS
(pokayoke)
Unit:mm
45pcs/tube
9
FTR-K1 SERIES
FBR51, 52 SERIES
1. General Information
l AllautomotiverelaysproducedbyFujitsuComponentsarecompliantwithRoHSdirective2002/95ECincluding
amendments.
l CadmiumasusedinelectricalcontactsisexemptedfromtheRoHSdirectivesonOctober21st,2005.
(AmendmenttoDirective2002/95/EC)
l Allofourautomotiverelaysarelead-free.
l LeadfreesolderplatingonrelayterminalsisSn-3.0Ag-0.5Cu,unlessotherwisespecied.
ThismaterialhasbeenveriedtobecompatiblewithPbSnassemblyprocess.
2. Recommended Lead Free Solder Prole
lRecommendedsolderSn-3.0Ag-0.5Cu.
RoHS Compliance and Lead Free Information
3. Moisture Sensitivity
lMoistureSensitivityLevelstandardisnotapplicabletoelectromechanicalrelays,unlessotherwiseindicated.
4. Tin Whiskers
lDippedSnAgCusolderisknownaspresentingalowrisktotinwhiskerdevelopment.Noconsiderablelength
whiskerwasfoundbyourinhousetest.
We highly recommend that you conrm your actual solder conditions
Flow Solder condition:
Pre-heating: maximum120˚C
Soldering: dipwithin5sec.at
260˚Csolderbath
Solder by Soldering Iron:
SolderingIron
Temperature: maximum360˚C
Duration: maximum3sec.
10
FTR-K1 SERIES
Japan
FujitsuComponentLimited
Gotanda-ChuoBuilding
3-5,Higashigotanda2-chome,Shinagawa-ku
Tokyo141,Japan
Tel:(81-3)5449-7010
Fax:(81-3)5449-2626
Email:promothq@ft.ed.fujitsu.com
Web:www.fcl.fujitsu.com
North and South America
FujitsuComponentsAmerica,Inc.
250E.CaribbeanDrive
Sunnyvale,CA94089U.S.A.
Tel:(1-408)745-4900
Fax:(1-408)745-4970
Email:components@us.fujitsu.com
Web:http://us.fujitsu.com/components
Europe
FujitsuComponentsEuropeB.V.
Diamantlaan25
2132WVHoofddorp
Netherlands
Tel:(31-23)5560910
Fax:(31-23)5560950
Email:info@fceu.fujitsu.com
Web:emea.fujitsu.com/components/
Asia Pacic
FujitsuComponentsAsiaLtd.
102EPasirPanjangRoad
#01-01CitilinkWarehouseComplex
Singapore118529
Tel:(65)6375-8560
Fax:(65)6273-3021
Email:fcal@fcal.fujitsu.com
Web:http://www.fujitsu.com/sg/services/micro/components/
Fujitsu Components International Headquarter Ofces
©2010FujitsuComponentsEuropeB.V.Allrightsreserved.Alltrademarksorregisteredtrademarksarethepropertyoftheirrespective
owners.
Thecontents,dataandinformationinthisdatasheetareprovidedbyFujitsuComponentLtd.asaserviceonlytoitsuserandonlyforgen-
eralinformationpurposes.
Theuseofthecontents,dataandinformationprovidedinthisdatasheetisattheusers’ownrisk.
Fujitsuhasassembledthisdatasheetwithcareandwillendeavortokeepthecontents,dataandinformationcorrect,accurate,comprehen-
sive,completeanduptodate.
FujitsuComponentsEuropeB.V.andafliatedcompaniesdohowevernotacceptanyresponsibilityorliabilityontheirbehalf,noronbehalf
ofitsemployees,foranylossordamage,direct,indirectorconsequential,withrespecttothisdatasheet,itscontents,data,andinformation
andrelatedgraphicsandthecorrectness,reliability,accuracy,comprehensiveness,usefulness,availabilityandcompletenessthereof.
NordoFujitsuComponentsEuropeB.V.andafliatedcompaniesacceptontheirbehalf,noronbehalfofitsemployees,anyresponsibility
orliabilityforanyrepresentationorwarrantofanykind,expressorimplied,includingwarrantiesofanykindformerchantabilityortnessfor
particularuse,withrespecttothesedatasheets,itscontents,data,informationandrelatedgraphicsandthecorrectness,reliability,accuracy,
comprehensiveness,usefulness,availabilityandcompletenessthereof.Rev.December10,2010
FBR51, 52 SERIES