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LTR1 Datasheet, PDF (4/5 Pages) Copal Electronics – Ultra-Miniature Illuminated
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 Åow 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 Åux.
˙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.
˙Dimensions of Assembled Switch
Button
size A
size B
˘10༻
˘10
˘12.5
10mm sq. 10mm sq. 12.5mm sq.
П10༻
П10
П12.5
10mm dia. 10mm dia. 12.5mm dia.
̗
˘7.5༻
˘7.5
˘10
̖
7.5mm sq. 7.5mm sq. 10mm sq.
П7.5༻
П7.5
П10
7.5mm dia. 7.5mm dia. 10mm dia.
˙Precautions
LED circuit
$VSSFOU UP CF BQQMJFE UP UIF
-&% NVTU CF MPXFS UIBO UIF
GPSXBSE DVSSFOU *'  JOEJDBUFE
JOUIF-&%4QFDJpDBUJPOT
PGFBDITXJUDIFT3FTJTUBODF
WBMVF3TIPVMECFDBMDVMBUFE
VTJOHUIFGPSNVMBPOUIFSJHIU
˙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 aɈect the silver plating.
ᾈLTM and LTR series are open-structure switches and should not
be used in a dusty environment.
&YBNQMF&7
&ʵ7'
3
*'
ʵ
3 
*'N"
Њ
6TF7'7UPDBMDVMBUF
Accessories
mounting
MJOHUIF.PVOUJOH'SBNF
BMM UIF NPVOUJOH GSBNF
IBUUIFUBCPOUIFGSBNF
O UIF TBNF EJSFDUJPO BT
TMPUPOUIFTXJUDI
*OTUBMMJOHUIF#VUUPO
*OTUBMMUIFCVUUPOTPUIBUUIFQSPUSVTJPOTPOUIFTXJUDIpUJOUP
UIFTRVBSFIPMFTPOUIFCVUUPO
5IF NPVOUJOH GSBNF DBOOPU CF JOTUBMMFE XJUI UIF TXJUDI
CVUUPOJOTUBMMFE