Welcome to IC235! Sign in | Join Free

Contact Us

Part Search
Keyword: TPS51513RHBT TMS320VC5506ZHH MR2A08AMA35R 74ABT2240CSJX STP36NF06FP
Location : Home > Integrated Circuits (ICs) > PMIC - Voltage Regulators - Linear (LDO) > Page 634

Integrated Circuits (ICs) > PMIC - Voltage Regulators - Linear (LDO)

1...630631632633634635636637638639...931
Part NumberCategoryFamilyStatusDescription
LT3050IDDB-3.3#TRPBFIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 3.3V 0.1A 12DFN
LT3050IDDB-3.3#TRPBF 14+ 13220 YAGE SHARE CO.,LTD
LT3050IDDB-3.3#TRPBF Linear 5500 12+ 12-DFN-EP (3x2) SINLIN ELECTRONICS LIMITED Authorized Distributor
LT3050IDDB-3.3#TRPBF LINEAR 66955 2013+ IC REG LDO 3.3V .1A 12-DFN Meyic Electronics Limited
LT3050IDDB-3.3#TRPBF LT 1 13+ QFN Protec Engineering (S) Pte Ltd protec@vip.163.com
LT3050IDDB-5#TRMPBFIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 5V 0.1A 12DFN
LT3050IDDB-5#TRMPBF Linear 6612 12+ 12-DFN-EP (3x2) SINLIN ELECTRONICS LIMITED Authorized Distributor
LT3050IDDB-5#TRMPBF LINEAR 67055 2014+ IC REG LDO 5V .1A 12-DFN ANRIC ELECTRONICS CO.,LTD.
LT3050IDDB-5#TRMPBF LINEAR 67055 2014+ IC REG LDO 5V .1A 12-DFN ANRIC ELECTRONICS CO.,LTD.
LT3050IDDB-5#TRMPBF LINEAR 67055 2014+ IC REG LDO 5V .1A 12-DFN ANRIC ELECTRONICS CO.,LTD.
LT3050IDDB-5#TRPBFIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 5V 0.1A 12DFN
LT3050IDDB-5#TRPBF 765489 13+ ANKEY ELECTRONICS CO.,LTD
LT3050IDDB-5#TRPBF 765489 13+ pulkey electronics ( HK ) co.,ltd
LT3050IDDB-5#TRPBF 14+ 13220 YAGE SHARE CO.,LTD
LT3050IDDB-5#TRPBF LINEAR 67155 2013+ IC REG LDO 5V .1A 12-DFN Meyic Electronics Limited
LT3050IMSE-3.3#PBFIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 3.3V 0.1A 12MSOP
LT3050IMSE-3.3#PBF 765489 13+ Fengyangxin Technology ( HK ) Co.,Ltd
LT3050IMSE-3.3#PBF Linear 9996 12+ 12-MSOP, Exposed Pad SINLIN ELECTRONICS LIMITED Authorized Distributor
LT3050IMSE-3.3#PBF Linear 9996 12+ 12-MSOP, Exposed Pad SINLIN ELECTRONICS LIMITED Authorized Distributor
LT3050IMSE-3.3#PBF LINEAR 67225 2013+ IC REG LDO 3.3V .1A 12-MSOP Meyic Electronics Limited
LT3050IMSE-5#PBFIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 5V 0.1A 12MSOP
LT3050IMSE-5#PBF 765489 13+ fenkey electronics co.,ltd
LT3050IMSE-5#PBF LINEAR 1000 16+ MSOP-12 Fantastic Technologies limited.info@fantastic-ele.com
LT3050IMSE-5#PBF LINEAR 1000 16+ MSOP-12 Fantastic Technologies limited.info@fantastic-ele.com
LT1086CMIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO ADJ 1.5A D2PAK
LT1086CM-12 LINEAR 47100 2012 TO-263 Hong Da Electronics Co.LTD
LT1086CM-12 LINEAR 47100 2012 TO-263 Hong Da Electronics Co.LTD¡ï¡ï(brenda@hongda-ic.com)
LT1086CM-2.5 N/A 10-10000 2011+ SMD/DIP Fantastic Technologies limited.
LT1086CM-2.5 N/A 10-10000 2011+ SMD/DIP Fantastic Technologies limited.
LT1086CM-3.3 14250 call ic2ic@sinlin-e.com SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1086CM-3.3 LINEAR 47100 2012 TO-263 Hong Da Electronics Co.LTD
LT1086CM-3.3 LINREAR 6800 2011+ TO263-3 FEDERAL INDUSTRY Ins (Tess@sunnlyic.com)
LT1086CM-3.3 LT 52085 12+ originalnew IC INTERNATIONAL TRADING CO.
LT1086CM-3.6#TRPBF 181180 13+ fenyang electronics co.,ltd
LT1086CM-3.6#TRPBF 181180 13+ fenyang electronics co.,ltd
LT1086CM-3.6#TRPBF Linear 5394 12+ D2PAK-3 SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1086CM-3.6#TRPBF RoHS 25290 12+ Original new IC INTERNATIONAL TRADING CO.jennifer@ic-international.hk
LT1129CT-5Integrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 5V 0.7A TO220-5
LT1129CT-5 Linear 300 XIONG LONG Electronics...
LT1129CT-5 LINEAR 50000 14+ TO220-5 Protec Engineering (S) Pte Ltd protec@vip.163.com
LT1129CT-5 LINEAR 50000 15+ TO220-5 Excellent Electronics Components Inc
LT1129CT-5 LT? 5000 2014+ 2014+ Leading(HK) IC Distributor Limited
LT1129CT-3.3Integrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 3.3V 0.7A TO220-5
LT1129CT-3.3 LINEAR 10000 2013+ Micropower Low Dropout Regulators with Shutdown World Link Parts components Dev.ltd-ORIGINAL ONLYsales@wlparts.com
LT1129CT-3.3 LINEAR 7036 12-13+ TO-220/5 Nego IC Co.Doris@negoic.com
LT1129CT-3.3 LT 18000 2016+ DIP IC Agent Electronics InsKevin@ic-agent.com
LT1129CTIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO ADJ 0.7A TO220-5
LT1129CT 474 04+ KIN DE ELECTRONICS LIM...
LT1129CT Linear 14 97+ Bizon Industry Co., Li...
LT1129CT LINER 2000 2013+ Micropower Low Dropout Regulators with Shutdown Protec Engineering (S) Pte Ltd protec@vip.163.com
LT1129CT N/A 15000 2011+Rohs Original&New FEDERAL INDUSTRY Ins (Tess@sunnlyic.com)
LT1129CT-3.3 LINEAR 10000 2013+ Micropower Low Dropout Regulators with Shutdown World Link Parts components Dev.ltd-ORIGINAL ONLYsales@wlparts.com
LT1129CT-3.3 LINEAR 7036 12-13+ TO-220/5 Nego IC Co.Doris@negoic.com
LT1129CT-3.3 LT 18000 2016+ DIP IC Agent Electronics InsKevin@ic-agent.com
LT1129CT-5 Linear 300 XIONG LONG Electronics...
LT1129CT-5 LINEAR 50000 14+ TO220-5 Protec Engineering (S) Pte Ltd protec@vip.163.com
LT1129CT-5 LINEAR 50000 15+ TO220-5 Excellent Electronics Components Inc
LT1129CT-5 LT? 5000 2014+ 2014+ Leading(HK) IC Distributor Limited
LT1086CM-3.3Integrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 3.3V 1.5A D2PAK
LT1086CM-3.3 14250 call ic2ic@sinlin-e.com SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1086CM-3.3 LINEAR 47100 2012 TO-263 Hong Da Electronics Co.LTD
LT1086CM-3.3 LINREAR 6800 2011+ TO263-3 FEDERAL INDUSTRY Ins (Tess@sunnlyic.com)
LT1086CM-3.3 LT 52085 12+ originalnew IC INTERNATIONAL TRADING CO.
LT323ATIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 5V 3A TO220-3
LT323AT LINEAR 6800 2011+ TO220-3 FEDERAL INDUSTRY Ins (Tess@sunnlyic.com)
LT323AT N/A 34700 07+ DIP European Union IC Industry Cor.
LT323AT TO220 52085 12+ OMEAR IC INTERNATIONAL TRADING CO.
LT1117IST-2.85Integrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 2.85V 0.8A SOT223
LT1117IST-2.85 LINEAR 10000 2013+ 800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V World Link Parts components Dev.ltd-ORIGINAL ONLYsales@wlparts.com
LT1117IST-2.85 LINEAR 43000 14-15+ SOT-223 Nego IC Co.Doris@negoic.com
LT1117IST-2.85 LINER 10000 16+ 800mALowDropoutPositiveRegulators Fantastic Technologies limited.info@fantastic-ele.com
LT1763CS8-3#TRPBFIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 3V 0.5A 8SOIC
LT1763CS8-3#TRPBF Linear 9000 12+ 8-SOIC SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1763CS8-3#TRPBF Linear 9000 12+ 8-SOIC SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1763CS8-3#TRPBF LINEARTECH 13408 14-15+ NA Nego IC Co.Doris@negoic.com
LT1763CS8-3#TRPBF LT 2500 1112+ SOP-8 Protec Engineering (S) Pte Ltd protec@vip.163.com
LT1763CS8-3#TRPBF LT 2500 1112+ SOP-8 Protec Engineering (S) Pte Ltd protec@vip.163.com
LT1763CS8-3#TRPBF LT 2500 1112+ SOP-8 Protec Engineering (S) Pte Ltd protec@vip.163.com
LT1763CS8-3#TRPBF S/N 10000 2013+ electronics components World Link Parts components Dev.ltd-ORIGINAL ONLY
LT1763CS8-1.5#TRPBFIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 1.5V 0.5A 8SOIC
LT1763CS8-1.5#TRPBF Linear 5200 12+ 8-SOIC SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1763CS8-1.5#TRPBF LINEARTECHNOLOGY 840 13+ Protec Engineering (S) Pte Ltd protec@vip.163.com
LT1763CS8-1.5#TRPBF LT 2333 16+ SOP8 Fantastic Technologies limited.info@fantastic-ele.com
LT1763CS8-1.5#TRPBF S/N 10000 2013+ electronics components World Link Parts components Dev.ltd-ORIGINAL ONLY
LT1763CS8-2.5#TRPBFIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 2.5V 0.5A 8SOIC
LT1763CS8-2.5#TRPBF Linear 5020 12+ 8-SOIC SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1763CS8-2.5#TRPBF Linear 5020 12+ 8-SOIC SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1763CS8-2.5#TRPBF LINEAR 87890 1525+ IC REG LDO 2.5V .5A 8-SOIC Ronxim Components Ltd.
LT1763CS8-2.5#TRPBF LINEAR 87890 1525+ IC REG LDO 2.5V .5A 8-SOIC Ronxim Components Ltd.
LT1763CS8-2.5#TRPBF LINEAR 37141 16+ NEW RoHS and More QTY Semilex Electronics Limited. (Belwen@semi-lex.com)
LT1763CS8-1.8#TRPBFIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 1.8V 0.5A 8SOIC
LT1763CS8-1.8#TRPBF LT 10083 14-15+ SOP8 Nego IC Co.
LT1763CS8-1.8#TRPBF N/A 68700 2016 RohsAndNew European Union IC Industry Co.linda@ic-industry38.com
LT1763CS8-1.8#TRPBF S/N 10000 2013+ electronics components World Link Parts components Dev.ltd-ORIGINAL ONLYsales@wlparts.com
LT1521CS8-3.3#TRIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 3.3V 0.3A 8SOIC
LT1521CS8-3.3#TRPBF LT 11101 14-15+ SOIC-8 Nego IC Co.Doris@negoic.com
LT1521CS8-3.3#TRPBF LT? 5022 2014+ 2014+ Leading(HK) IC Distributor Limited
LT1521CS8-3.3#TRPBF LT? 5022 2014+ 2014+ Leading(HK) IC Distributor Limited
LT1521CS8-3.3#TRPBF LT? 5022 2014+ 2014+ Leading(HK) IC Distributor Limited
LT1086CM-3.6#TRIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 3.6V 1.5A D2PAK
LT1086CM-3.6#TRPBF 181180 13+ fenyang electronics co.,ltd
LT1086CM-3.6#TRPBF 181180 13+ fenyang electronics co.,ltd
LT1086CM-3.6#TRPBF Linear 5394 12+ D2PAK-3 SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1086CM-3.6#TRPBF RoHS 25290 12+ Original new IC INTERNATIONAL TRADING CO.jennifer@ic-international.hk
LT1763CS8-1.5#TRIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 1.5V 0.5A 8SOIC
LT1763CS8-1.5#TR LINEAR 87570 1525+ IC REG LDO 1.5V .5A 8SOIC Ronxim Components Ltd.
LT1763CS8-1.5#TR LINEAR 87570 1525+ IC REG LDO 1.5V .5A 8SOIC Ronxim Components Ltd.
LT1763CS8-1.5#TR LINEAR 87570 1525+ IC REG LDO 1.5V .5A 8SOIC Ronxim Components Ltd.
LT1763CS8-1.5#TR LINEARTECH 284 05+ MACROQUEST ELECTRONICS CO., LTDZHANCHUN1214@VIP.163.COM
LT1763CS8-1.5#TRPBF Linear 5200 12+ 8-SOIC SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1763CS8-1.5#TRPBF LINEARTECHNOLOGY 840 13+ Protec Engineering (S) Pte Ltd protec@vip.163.com
LT1763CS8-1.5#TRPBF LT 2333 16+ SOP8 Fantastic Technologies limited.info@fantastic-ele.com
LT1763CS8-1.5#TRPBF S/N 10000 2013+ electronics components World Link Parts components Dev.ltd-ORIGINAL ONLY
LT1763CS8-3.3#TRIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 3.3V 0.5A 8SOIC
LT1763CS8-3.3#TRPBF 18000 2016+ E-mailtome IC Agent Electronics InsKevin@ic-agent.com
LT1763CS8-3.3#TRPBF 18000 2016+ E-mailtome IC Agent Electronics InsKevin@ic-agent.com
LT1763CS8-3.3#TRPBF ORIGINAL 864 15+ New & Original parts Lei Li Electronics Co.,LtdBenny@leili-ic.com
LT1763CS8-3.3#TRPBF ORIGINAL 864 15+ New & Original parts Lei Li Electronics Co.,LtdBenny@leili-ic.com
LT1763CS8-2.5#TRIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 2.5V 0.5A 8SOIC
LT1763CS8-2.5#TR LINEAR 1291 16+ SOIC Fantastic Technologies limited.info@fantastic-ele.com
LT1763CS8-2.5#TR LINEAR 2423 0113+ SOP Protec Engineering (S) Pte Ltd protec@vip.163.com
LT1763CS8-2.5#TR LINEAR 2423 0113+ SOP Protec Engineering (S) Pte Ltd protec@vip.163.com
LT1763CS8-2.5#TRPBF Linear 5020 12+ 8-SOIC SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1763CS8-2.5#TRPBF Linear 5020 12+ 8-SOIC SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1763CS8-2.5#TRPBF LINEAR 87890 1525+ IC REG LDO 2.5V .5A 8-SOIC Ronxim Components Ltd.
LT1763CS8-2.5#TRPBF LINEAR 87890 1525+ IC REG LDO 2.5V .5A 8-SOIC Ronxim Components Ltd.
LT1763CS8-2.5#TRPBF LINEAR 37141 16+ NEW RoHS and More QTY Semilex Electronics Limited. (Belwen@semi-lex.com)
LT1763CS8#TRIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO ADJ 0.5A 8SOIC
LT1763CS8#TRPBF Linear 5697 12+ 8-SOIC SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1763CS8#TRPBF Linear 5697 12+ 8-SOIC SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1763CS8-5#TRIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 5V 0.5A 8SOIC
LT1763CS8-5#TRPBF 50000 14+ 14+ Protec Engineering (S) Pte Ltd protec@vip.163.com
LT1763CS8-5#TRPBF LINAR 1112 1133+ Hgme Electronics co.,ltd
LT1763CS8-5#TRPBF LINEAR 25000 2015+ IC Agent Electronics CO.
LT1763CS8-5#TRPBF LINEAR 20000 2016+ Originalnew IC Agent Electronics InsKevin@ic-agent.com
LT1763CS8-1.8#TRIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 1.8V 0.5A 8SOIC
LT1763CS8-1.8#TR LINEAR 32510 2012 CS8 Hong Da Electronics Co.LTD
LT1763CS8-1.8#TR LT 10673 14-15+ SOP8 Nego IC Co.
LT1763CS8-1.8#TR LT 10673 14-15+ SOP8 Nego IC Co.Doris@negoic.com
LT1763CS8-1.8#TR LT 10673 14-15+ SOP8 Nego IC Co.Doris@negoic.com
LT1763CS8-1.8#TRPBF LT 10083 14-15+ SOP8 Nego IC Co.
LT1763CS8-1.8#TRPBF N/A 68700 2016 RohsAndNew European Union IC Industry Co.linda@ic-industry38.com
LT1763CS8-1.8#TRPBF S/N 10000 2013+ electronics components World Link Parts components Dev.ltd-ORIGINAL ONLYsales@wlparts.com
LT1763CS8-3#TRIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 3V 0.5A 8SOIC
LT1763CS8-3#TRPBF Linear 9000 12+ 8-SOIC SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1763CS8-3#TRPBF Linear 9000 12+ 8-SOIC SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1763CS8-3#TRPBF LINEARTECH 13408 14-15+ NA Nego IC Co.Doris@negoic.com
LT1763CS8-3#TRPBF LT 2500 1112+ SOP-8 Protec Engineering (S) Pte Ltd protec@vip.163.com
LT1763CS8-3#TRPBF LT 2500 1112+ SOP-8 Protec Engineering (S) Pte Ltd protec@vip.163.com
LT1763CS8-3#TRPBF LT 2500 1112+ SOP-8 Protec Engineering (S) Pte Ltd protec@vip.163.com
LT1763CS8-3#TRPBF S/N 10000 2013+ electronics components World Link Parts components Dev.ltd-ORIGINAL ONLY
LT1521CST-3.3#TRIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 3.3V 0.3A SOT223
LT1521CST-3.3#TRPBF LINEAR TECHNOLOGY 742 15+ New & Original parts Lei Li Electronics Co.,LtdBenny@leili-ic.com
LT1521CST-3.3#TRPBF N/A 68700 2016 RohsAndNew European Union IC Industry Co.linda@ic-industry38.com
LT1521CST-3.3#TRPBF S/N 10000 2013+ electronics components World Link Parts components Dev.ltd-ORIGINAL ONLYsales@wlparts.com
LT1521CST-3.3#TRPBF S/N 10000 2013+ electronics components World Link Parts components Dev.ltd-ORIGINAL ONLYsales@wlparts.com
LT1521CST-5#TRIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 5V 0.3A SOT223
LT1521CST-5#TRPBF LINEAR 37231 16+ NEW RoHS and More QTY Semilex Electronics Limited. (Belwen@semi-lex.com)
LT1521CST-5#TRPBF LINEAR 10890 14-15+ SOT223 Nego IC Co.Doris@negoic.com
LT1521CST-5#TRPBF LINEAR 10890 14-15+ SOT223 Nego IC Co.Doris@negoic.com
LT1521CST-3#TRIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 3V 0.3A SOT223
LT1521CST-3#TRPBF 77200 2016 Original&New&Rhos Hong Da Electronics Co.LTDbrenda@hongda-ic.com
LT1521CST-3#TRPBF Linear 8800 12+ SOT-223 SINLIN ELECTRONICS LIMITED Authorized Distributor
LT1521CST-3#TRPBF LINEAR 12345 16+ SOT223 Fantastic Technologies limited.info@fantastic-ele.com
LT1521CST-3#TRPBF N/A 68700 2016 RohsAndNew European Union IC Industry Co.linda@ic-industry38.com
LT1121IST-3.3#TRIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 3.3V 0.15A SOT223
LT1121IST-3.3#TRPBF LINEARTECHNOLOGY 50000 15+ Excellent Electronics Components Inc
LT1121IST-3.3#TRPBF LINEARTECHNOLOGY 50000 15+ Excellent Electronics Components Inc
LT1121IST-3.3#TRPBF N/A 1957 16+ s/n Fantastic Technologies limited.info@fantastic-ele.com
LT1121IST-5#TRIntegrated Circuits (ICs)PMIC - Voltage Regulators - Linear (LDO)ActiveIC REG LDO 5V 0.15A SOT223
LT1121IST-5#TR 15+ N/A 50000 SOT-223 Excellent Electronics Components Inc
LT1121IST-5#TR LINEAR 38201 2013+ New And Original Semilex Electronics Direct
LT1121IST-5#TR N/A 319 14+ SOT-223 Protec Engineering (S) Pte Ltd protec@vip.163.com