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LTR1ɾ2 & LTM1ɾ2 Ultra-Miniature Illuminated Pushbutton Switches RoHS Compliant ˙Series Conductive Rubber ContactʢLTR typeʣ Mettal ContactʢLTM typeʣ ˙Features 1. Full Surface Illumination (LTM2, LTMG2, LTR2 Series Miniature, low-cost switch with full surface illumination by LED. Buttons available in sq uare shape (7.5/10mm sq.) and round shape (7.5/10mm dia. ) in 3 colors (Red, Green, Yellow). Non-illuminated switches also available (LTM1, LTMG1, LTR1 series). 2. Two Types of Contacts LTR series: Conductive rubber contact for soft tactile feel. LTM/LTMG series: Metal contact for sharp tactile feel. 3. PC Board Mount Terminal pitch is in inches (multiples of 2.54 mm) for all models. The unique terminal shape prevents the terminals from coming loose from the PC board during dip soldering. 4. Enhanced Resistance to Soldering Heat Improved terminal structure protects the contacts from soldering heat. In addition, each pole has two terminals which can be used as a jumper wire. 5. Compatible With Lead-Free Soldering (LTM Series) Heat-resistance resin fo r lead-free soldering. ˙Speci/g196cations Rating LTRɿ10mA 12VDC max. 10Ж A Min. LTMɿ1VA max. ʢ50mA max.48VDC maxʣ 0.5mA min. LTMGɿ1VA Max.ʢ50mA max.48VDC max.ʣ 10 Ж A min. Initial Contact Resistance LTRɿ500Њ max.ʢ1mA 2VDC at 1.47N ʨ150gfʩʣ LTMɿ100mЊ max ʢ1.5mA 200Ж VAC at 1.96N ʨ200gfʩʣ Dielectric Strength 250VAC 1 minute *OTVMBUJPO3FTJTUBODF 100MЊ minɹɹɹɹɹɹɹɹɹ ʢ100VDCʣ &MFDUSJDBM-JGF LTRɿ100,000 operations LTMɿ300,000 operations $POUBDU#PVODF LTRɿ3 msec. max. ʢInitial valueʣ LTMɿ10 msec. max. ʢInitial valueʣ 5SBWFM LTRɿ1 mm LTMɿ0.25 mm 0QFSBUJOH'PSDF ʢBUQFBLGPSDFʣ LTRɿ0.98ʶ0.39N LTMɿ1.37ʶ0.39N 0QFSBUJOH 5FNQFSBUVSF3BOHFʵ25ʙʴ70ˆ 4UPSBHF 5FNQFSBUVSF3BOHFʵ40ʙʴ70ˆ
LTRɾLTM ˙Part Numbering LT M G 2 01 L2 ˙Type of Contacts and Contact Plating Code Type of Contact Contact Plating R Conductive rubber contact Gold plated M Metal contact Silver plated MG Metal contact Gold plated Note : The contacts of LTR series are all gold-plated. ˙Structure Fig. 12 Structure Without LED ʢNon-illuminatedʣ With LED ˙Table of Part Numbers Series LTM LTR $POUBDUQMBUJOH Silver Plated Gold Plated Gold Plated /POJMMVNJOBUFE ɹ LTM1ʵ01 ʵɹ LTMG1ʵ01 ɹLTR1ʵ01 ʵ -&%DPMPS Red ɹLTM2ʵ01ʵL2 ɹLTM2ʵ31ʵL2 ˒LTMG2ʵ01ʵL2 ɹLTR2ʵ01ʵL2 ɹLTR2ʵ31ʵL2 Green ɹLTM2ʵ01ʵL5 ɹLTM2ʵ31ʵL5 ˒LTMG2ʵ01ʵL5 ɹLTR2ʵ01ʵL5 ɹLTR2ʵ31ʵL5 Bule ˒LTM2ʵ01ʵL6 ʵ ˛LTMG2ʵ01ʵL6 ˒LTR2ʵ01ʵL6 ʵ Yellow ɹLTM2ʵ01ʵL8 ɹLTM2ʵ31ʵL8 ˒LTMG2ʵ01ʵL8 ɹLTR2ʵ01ʵL8 ɹLTR2ʵ31ʵL8 ˙PC Hole Layouts Type LTR1/LTM1 LTR2/LTM2 Dimensions ʢTop viewʣ ˙Operating Force vs. Stroke Characteristics ˙LED Speci/g196 cations ɹLTR2ɾLTM2ɾLTMG2 ˙LED liminance Symbol LED luminance 01 ʢNormal luminance ) 31 ʢHigh luminance ) ˙Packaging Speci/g196 cations Zipper Plastic Bag Series Code Type of Contact Contact Plating LED luminance Structure LED Color Fig.A Code Color Luminance Forward Current (IF) Forward V (VF) Reverse Voltage (VR)nom. max. L2 Red Normal 30mA 2.0V 2.5V DC5V L5 Green 25mA 2.2V 2.5V DC5V L6 Bule 30mA 3.8V 4.5V DC5V L8 Yellow 30mA 2.1V 2.5V DC5V L2 Red High 30mA 1.95V 2.5V DC5V L5 Green 30mA 3.2V 4.0V DC5V L8 Yellow 30mA 2.0V 2.5V DC5V ˛ ɿ Inquiry products. ˒ ɿ Made to order products.
Part No. Switching function Circuit diagrams LTM2ʵ01ʵL˙ LTMG2ʵ01ʵL˙ LTM2ʵ31ʵL˙ OFF ʢONʣ Connecting terminals LED circuit ʢONʣɿMomentary LED color to be speci/g196ed in ˙. ˙ ɿRefer to "Table of Part Numbers" on P .171. LTRʢ Conductive Rubber Contactʣ LTMʢMetal Contactʣ Part No. Switching function Circuit diagrams LTR1-01 OFF ʢONʣ Connecting terminals Part No. Switching function Circuit diagrams LTM1ʵ01 LTMG1ʵ01 OFF ʢONʣ Connecting terminals LTR1 LTM1 LTM2 LTR2 Terminal numbers are not shown on the switch. Terminal numbers are not shown on the switch. Terminal numbers are not shown on the switch. Terminal numbers are not shown on the switch. SPST Without LED ʢNon-illuminatedʣ SPST Without LED ʢNon-illuminatedʣ SPST With LED SPST With LED ʢʣ ʢʣ ʢʣ ʢʣ ʶ ʶ ʶ '6+*ɹ40,6 U 4530,&ʢʣ ʶ ʶ ʶ ʶʶ U '6+*ɹ40,6 4530,&ʢʣ ʢʣ ʢʣ ʢʣ ʢʣ ʢʣ ʢʣ '6+*40,6 ʢʣ ʢʣ ʢʣ ʢʣ ʶ ʶ ʶ U 4530,&ʢʣ ʶ ʶ ʶ ʶ U 4530,&ʢʣ '6+*40,6 ʢʣ ʢʣ ʢʣ ʢʣ ʢʣ ʢʣ
ʢʣ LTRɾLTM ˙Soldering Series LTM LTR .BOVBMTPMEFSJOH 380ˆ Max. 3sec. Max. 380ˆ Max. 3sec. Max. "VUPTPMEFSJOH 275ˆ Max. 6sec. Max. 265ˆ Max. 6sec. Max. Preheating in the /g197 ow line should be 80~120ˆ, 120 sec. max. Do not dip solder the switches with color buttons or mounting frames attached. Soldering heat may deform the accessories or cause ingress of /g197 ux. ˙Dimensions of Assembled Switch ˙Flux Cleaning ᾇSolvents : Fluorine or Alcohl type ᾈLTM and LTR series are not washable. To wash the PC board, clean the soldering surface of the PC board with a brush so that the switch is not exposed to the cleaning solution. ᾉAfter soldering, wait until the temperature of the terminals cool down to 90ˆ or below or until the parts are exposed to room temperature for more than 5 min. before washing. ˙Ambient Conditions ᾇIn case of switches with silver-plated contacts, do not use in an environment where there is corrosive gas such as sulfuric or ammonia gas which may a/g584 ect the silver plating. ᾈLTM and LTR series are open-structure switches and should not be used in a dusty environment. ˙Precautions LED circuit Accessories mounting 6TF7' 7UPDBMDVMBUF &YBNQMF& $VSSFOUUPCFBQQMJFEUPUIF -&%NVTUCFMPXFSUIBOUIF GPSXBSEDVSSFOU *' JOEJDBUFE JOUIF-&%4QFDJpDBUJPOT PGFBDITXJUDIFT3FTJTUBODF WBMVF3TIPVMECFDBMDVMBUFE VTJOHUIFGPSNVMBPOUIFSJHIU MJOHUIF.PVOUJOH'SBNF BMM UIF NPVOUJOHGSBNF IBUUIFUBCPOUIFGSBNF OUIFTBNFEJSFDUJPOBT TMPUPOUIFTXJUDI *OTUBMMJOHUIF#VUUPO *OTUBMMUIFCVUUPOTPUIBUUIFQSPUSVTJPOTPOUIFTXJUDIpUJOUP UIFTRVBSFIPMFTPOUIFCVUUPO 5IF NPVOUJOH GSBNF DBOOPU CF JOTUBMMFE XJUI UIF TXJUDI CVUUPOJOTUBMMFE Њ&ʵ7' ʵ Button size A size B ˘10༻ 10mm sq. ˘10 10mm sq. ˘12.5 12.5mm sq. П10༻ 10mm dia. П10 10mm dia. П12.5 12.5mm dia. ˘7.5༻ 7.5mm sq. ˘7.5 7.5mm sq. ˘10 10mm sq. П7.5༻ 7.5mm dia. П7.5 7.5mm dia. П10 10mm dia.
LTRɾLTM ˙Optional Accessories ʬSold separatelyʭ 1BSU/BNF Color Button %JNFOTJPOT ʢ"#4ʣ /POJMMVNJOBUFEUZQF %BSLHSBZ 140007480168 140007480178 140007480188 140007480198 (SBZ 140007480169 140007480179 140007480189 140007480199 -JHIUHSBZ 140007480170 140007480180 140007480190 140007480200 *WPSZ 140007480171 140007480181 140007480191 140007480201 3FE 140007480172 140007480182 140007480192 140007480202 (SFFO 140007480174 140007480184 140007480194 140007480204 #MVF 140007480173 140007480183 140007480193 140007480203 *MMVNJOBUFEUZQF /PSNBMMVNJOBODF $MFBS 140007480422 140007480451 140007480505 140007480506 3FEDMFBS 140007480205 140007480208 140007480211 140007480214 (SFFODMFBS 140007480206 140007480209 140007480212 140007480215 :FMMPXDMFBS 140007480207 140007480210 140007480213 140007480216 )JHIMVNJOBODF $MFBS 140007480554 140007480558 140007480562 140007480566 3FEDMFBS 140007480551 140007480555 140007480559 140007480563 (SFFODMFBS 140007480552 140007480556 140007480560 140007480564 :FMMPXDMFBS 140007480553 140007480557 140007480561 140007480565 1BSU/BNF Mounting Frame %JNFOTJPOT ʢ"#4ʣ %BSLHSBZ 140000340170 140000340171 140000340168 140000340169 (SBZ 140000340179 140000340182 140000340173 140000340176 -JHIUHSBZ 140000340180 140000340183 140000340174 140000340177 *WPSZ 140000340181 140000340184 140000340175 140000340178 Mounting frame is common to both illuminated and non-illuminated switches. 1BSU/BNF Color Button %JNFOTJPOT ʢ"#4ʣ *MMVNJOBUFEUZQF -&%MVNJOBODF Normal luminance High luminance Normal luminance High luminance ᶄ4DSFFODPMPS ᶃ$PMPS Clear Clear %BSLHSBZ 140007480452 140007480567 140007480459 140007480574 (SBZ 140007480453 140007480568 140007480460 140007480575 -JHIUHSBZ 140007480454 140007480569 140007480461 140007480576 *WPSZ 140007480455 140007480570 140007480462 140007480577 3FE 140007480456 140007480571 140007480463 140007480578 (SFFO 140007480457 140007480572 140007480464 140007480579 #MVF 140007480458 140 007480573 140007480465 140007480580 ɿOptional Accessories