V I S H AY I N T E R T E C H N O L O G Y, I N C . POWER THICK FILM RESISTORS LTO 30, LTO 50, LTO 100 30 W, 50 W, and 100 W Thick Film Power Resistors KEY BENEFITS • • • • • • Standard TO-220 and TO-247 packages Non-inductive Compact, low-profile 3.2 mm thickness Wide resistance range; low values available from R01 in 1 % tolerance Compliant to RoHS directive 2011/65/EU Direct mounting of exposed ceramic on heatsink APPLICATIONS • • • • Power conversion High-speed switching RF applications Current sensing RESOURCES • • • • Datasheet: LTO 30 - http://www.vishay.com/doc?50049 Datasheet: LTO 50 - http://www.vishay.com/doc?50050 Datasheet: LTO 100 - http://www.vishay.com/doc?50051 For technical questions contact [email protected] A WORLD OF SOLUTIONS PRODUCT SHEET 1/2 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 VMN-PT9158-1605 www.vishay.com V I S H AY I N T E R T E C H N O L O G Y, I N C . POWER THICK FILM RESISTORS LTO 30, LTO 50, LTO 100 LTO 30 LTO 50 LTO 100 Vishay Sfernice Vishay Sfernice Vishay Sfernice 30 W, 50 W, and 100 W Thick Film Power Resistors Power Resistor Thick Film Technology 30 W Power Resistor ThickPower Film Technology 100 Film Technology Resistor Thick LTO 50 LTOLTO 50 LTO 100 LTO 30 30 LTO Vishay Sfernice Vishay Sfernice Vishay Sfernice FEATURE LTO 50 VishaySfernice Sfernice Vishay Vishay Sfernice FEATURES FEATURE FEATURE Vishay Sfernice 50 Wtemperature and 100Power W at 25 ºC case temperature heatsink 50temperature W • at 30 25 W, °CFilm case heatsink Resistor Thick Filmmounted Technology 30 W atResistor 25 °C case heatsink Power Thick Technology Power Resistor Thick Film Technology 100 W at 25 °C case temperature heatsink Power Resistor Thick F 30 30 W Power Resistor Thick Film Technology mounted Power Resistor Thick Film Technology • Direct mounting ceramic on heatsink mounted W Power Resistor Thick Film Technology mounted Direct • mounting on heatsink Broadceramic resistance range: 0.010 Ω to 550 kΩ (LTO 30, LTO 50), 0.015 Ω Direct mounting ceramic on heatsink Direct mounting ceramic on heatsink FEATURE to 1FEATURE MΩ (LTO 100) Broad resistance range: 0.010 to 550 k FEA FEATURE FEATURE Broad resistance range: 0.010 to 550 k FEATURE • Non inductive Broad resistance range: 0.015heatsink to 1 M 50 W at 25 °C case temperature 100 W at 25 °C case temperature heat Non inductive 50 W at 25 °C case temperature heatsink 30 W at 25 °C case temperature heatsink 50 W at 25 °C case temperature heatsink 10 Vishay Sfernice Non inductive mounted mounted 30 W at 25 °C case temperature heatsink Vishay Sfernice •package: TO-220 package 30, LTO 50), TO-246 (LTO 100):mounted compact and TO-220 Compact and(LTO easy to mount Non inductive mounted mounted m mounted Direct mounting ceramic on heatsink easy to mount TO-220 package: Compact and easy to mount Direct mounting ceramic on heatsink Directon mounting Isolated case easy Direct mounting ceramic heatsinkceramic on heatsink Direct mounting ceramic on heatsink TO-247 package: Compact and to mount Di Broadonresistance 0.010 2002/95/EC to 550 k •2002/95/EC Compliant to RoHSrange: directive Direct mounting ceramic heatsink Broad resistance range: 0.010 to kdirective We Compliant to 550 RoHS Compliant to RoHS directive 2002/95/EC LTO series are the extension of RTO types. used the LTO series are the extension of RTO types. Weseries used the the Broad resistance range: to 550 k 0.015 to 1 M Broad0.010 resistance range: LTO are extension of RTO types. We used the Broad resistance range: Compliant to 550 kto RoHS directive 2002/95/EC 0.010 Non 0.010 inductive Non inductive Br direct ceramic design (no metal tab) of our RCH Broad resistance range: to 550 k direct ceramic mounting design (no mounting metal tab) of our RCH direct ceramic mounting design (no metal tab) of our RCH Non inductive power resistors applied to semiconductor packages. Non inductive power resistors applied to semiconductor packages. Non inductive power resistors applied to semiconductor packages. TO-220 package: Compact and easy to mount TO-220 package: Compact and easy to mount FEATURE Non inductive No FEATURE TO-220 package: Compact and easy to mount FEATUREDIMENSIONS in millimeters Isolated caseto mount TO-220 package: Compact and easy TO-247 package: Compact and easy to mo Isolated case DIMENSIONS in millimeters DIMENSIONS in millimeters 100 W at 25 °C case temperature heatsink TO-220 package: Compact and easy to mount Isolated case 50 W at 25 °C case temperature heatsink TO 3.2 LTO 50 series are the5.0 of RTO types. We used the 10.4 LTO LTO LTO 100 Compliant toextension RoHS directive 2002/95/EC 30 W at 25 case temperature heatsink LTO 30 series are the to extension of RTO2002/95/EC types. We used Compliant RoHS directive mounted are the extension of RTO types. We°C used the 15.76 Compliant to the RoHS directive 2002/95/EC Compliant totypes. RoHSWe directive 2002/95/EC 10.4 types. We used the 3.2mounted thetoextension of RTO2002/95/EC used the LTO series are the extension of RTO ofCompliant RoHS directive ofCompliant RoHS directive 2002/95/EC LTO theto extension of RTO types. We used the LTO direct ceramic mounting design (no metal tab)series ourare RCH ceramic mounting (no the metal tab)series ourare RCH LTOtab) series areRCH the direct extension of RTO types.design We used Co mic mounting design (nomounted metal of our ceramic mounting design (no metal tab) of our RCH direct ceramic mounting design (no metal tab) of our RCH Directdirect mounting ceramic on heatsink ceramic mounting design (noapplied metal to tab) of our RCH power resistors semiconductor packages. Directdirect mounting ceramic on heatsink resistors to semiconductor direct ceramic mounting design (noapplied metal3.2 tab) of our RCH packages. ors applied to semiconductor packages. DIMENSIONS intopower millimeters 3.2 resistors applied to semiconductor packages. power resistors applied to semiconductor packages. semiconductor packages. power Directresistors mountingapplied ceramic on heatsink power to 550 k power resistors applied to semiconductor packages. Broad resistance range: 0.010 5.33 DIMENSIONS in millimeters Broad resistance range: 0.015 to 1 M DIMENSIONS in millimeters SIONS in millimeters Broad resistance range: 0.010 to 550 k DIMENSIONS in millimeters DIMENSIONS in millimeters Non inductive DIMENSIONS in millimeter s 3.2 5.0 15.76 16.2 16.2 3.2 10.4 10.4 DIMENSIONS Øin 3.2millimeters Ø 3.2 20.7 Non inductive 15.76 3.2 Non inductive 10.4 TO-220 package: Compact and easy to mount Ø 3.6 3.2 10.4 LTO 100 FEATURE LTO 50 Power Resistor Thick Film Technology Power Resistor Thick Film Technology Resistor Thick Film Technology 3.2 10.4 Isolated case 3.2 3.2 are thetoextension of RTO types. We used the 3.2 Compliant RoHS directive 2002/95/EC LTO series are thetoextension of RTO types. We used the LTO series Compliant RoHS directive 2002/95/EC . We used the direct ceramic mounting design (no metal tab) of our RCH 1.3 1.3 3.5 3.5 direct ceramic mounting design (no metal tab) of our RCH 3.6 3.5 b) of our RCH 16.2 packages. 16.2 power resistors Ø 3.2 applied to semiconductor Ø 3.2 16.2 power resistors applied to semiconductor packages. Ø 3.2 12.7 16.2 12.7 ckages. Ø 3.2 Ø 3.2 TO-220 package: Compact and easy to mount TO-247 package: Compact and easy to mount 5.33 3.2 0.8 DIMENSIONS in millimeters 0.8 DIMENSIONS in millimeters0.6 0.6 1.5 1.3 3.5 15.76 3.2 10.4 3.2 10.4 5.08 12.7 3.2 1.8 1.3 3.5 5.08 1.3 3.5 1.3 1.8 3.5 10.16 12.7 0.8 Note Note3.2 0.8 Note • Tolerances unless stated: ± 0.3 mm unless • Tolerance otherwise specified: ± 0.3 mm 0.8 0.8 • Tolerance0.6 unless otherwise specified: ± 0.3 mm 0.6 12.7 5.33 3.2 Compliant to RoHS directive 2002/95/EC Ø 3.6 16.2 14.5 0.6 20.7 Ø 3.6 5.0 3.6 1.3 2.4 12.7 5.33 1.5 0.8 0.6 3.5 3.5 0.6 12.7 0.6 16.2 20.7 MECHANICAL SPECIFICATIONS Ø 3.2 16.2 Ø 3.6 MECHANICAL SPECIFICATIONS ELECTRICAL SPECIFICATIONS MECHANICAL SPECIFICATIONS ELECTRICAL SPECIFICATIONS 1.8 1.8 ELECTRICAL SPECIFICATIONS Mechanical Protection Molded 1.8 5.08 Mechanical Protection Molded 5.08 10.16 1.8 Resistance Range 0.010 to 550 k 3.6 3.5 14.5 0.6 1.5 2.4 1.8 Resistance Range 0.010 to 550 k 5.08 Protection Molded 5.08 Resistive Element Resistive Thick filmNote Mechanical 10.16 Range 0.015 to 1 M 5.08 Element Thick film Note ± 1 % to ±Resistance Tolerances (Standard) Tolerances (Standard) 10 % ± 1 % to ± 10 Note % Note Resistive Element Thick film Note Substrate Alumina • Tolerance unless otherwise specified: ± 0.3 mm • Tolerance unless otherwise specified: ± 0.3 mm Tolerances (Standard) ± 1 % to ± 10 % Note Substrate Alumina unless otherwise specified: ± 0.3 mm unless stated: ± 0.3 mm • Tolerances 1.3 3.6 3.5 3.5 Substrate Alumina Dissipation Associated a heatsink Dissipation andOnto Associated Onto a heatsink • and Tolerance unless otherwise specified: ± 0.3 mm • Tolerance unless otherwise specified: ± 0.3 mm 1.3 Connections Tinned copper± 0.3 3.5 • Tolerances unless stated: mmTinned copper Connections Dissipation and Associated Onto a heatsink ConnectionsSPECIFICATIONS Tinned copper 50 W at + 25 °C (case temp.) Weight 2 g SPECIFICATIONS max. MECHANICAL 30 W at + 25 °C (case temp.) MECHANICAL SPECIFICATIONS ICAL SPECIFICATIONS Weight 2 g max. MECHANICAL and Power Rating and 12.7 Power Rating 100 W14.5 at + 25 °C (case temp.) 12.7 ELECTRICAL SPECIFICATIONS ELECTRICAL SPECIFICATIONS Weight 3.5 g max. MECHANICAL SPECIFICATIONS MECHANICAL SPECIFICATIONS ELECTRICAL SPECIFICATIONS : 2.5 °C/W R MECHANICAL SPECIFICATIONS 0.8 °C/WRating and R ELECTRICAL SPECIFICATIONS Power TH (j - c) Mounting Torqure Mounting 1 Nm 1.5 TH (j - c): 4.2 0.8 Torqure 1 Nm Thermal Resistance Thermal Resistance R ELECTRICAL SPECIFICATIONS ELECTRICAL EL 0.6 (j - c): 1.5 °C/W SPECIFICATIONS 0.6 Protection Molded1 Nm Mechanical Protection Molded Protection Molded Free air: Mounting Torqure Mechanical Molded 0.6 Protection Mechanical Free air: Thermal Resistance Resistance Range 0.010 toTH550 k Resistance Range 0.015 Resistance Range 0.010 to of 550 kComponent Resistance Range 0.010 to 550 k the Mechanical Protection Molded of the Component Mechanical Protection Molded Free air: Mechanical Protection Resistive Element Thick film Resistive Element Thick film Range Molded 0.010 to 550 k Resistance Range 0.010 2.5 toW550 Re at +k 25 °C ± 1 % Resistance lement DIMENSIONS Thick film 2.25 W at +of25 °CComponent the ResistiveDIMENSIONS Element Thick Tolerances film Tolerances (Standard) to3.5 ± 10 (Standard) ± 1 % to ± 1 % toElement ± 10 % W% at + 25 °C Tolerances Resistive Element Substrate Thick film (Standard) Resistive Thick film Resistive Element Thick film Tolerances (Standard) ± 1 % to ± 10 % Alumina Substrate Alumina Alumina DIMENSIONS Tolerances (Standard) ± 1 % to ± 10 % Substrate Alumina Temperature Coefficient Performance table To Tolerances (Standard) ± See 1% to ± 10 % Temperature Coefficient See Performance tableAssociated Dissipation and OntoSee a heatsink 1.8 Dissipation and Associated Onto a h 2.4 Dissipation and Associated Onto a heatsink Substrate Alumina Substrate Alumina Substrate Alumina Temperature Coefficient Performance table 1.8 Standard Package TO220 package Connections Tinned copper Connections Tinned copper Dissipation and Associated Onto a heatsink TO220 s 5.08 TinnedConnections copper Standard PackageTinned copper 5.08 package 10.16 Dissipation and Associated Onto a heatsink Di Standard 150 ppm/°C Dissipation and Associated a± heatsink Standard ± Tinned 150 ppm/°C Standard Package 2 g max. TO247 package 50 Connections W at + 25 °C±(case temp.) Connections Tinned copper Connections copper Onto3.5 100 W at + 25 ° Tinned copper 50 W at + 25 °C (case temp.) Standard 150 ppm/°C Weight Weight g max. 2 g max. Power Rating 2 g max. Note Weight 30Rating WUat +and 25 °C (case temp.) Power Rating and Note 50 and W at + 25 °C (case temp.) Limiting ElementPower V temp.) : 2.5 °C/W RTH (j - c)Power L W at + 25 °C 500 :1 RTH (j - c)Po Power and Weight SPECIFICATIONS 2SPECIFICATIONS gTorqure max. Weight 2Voltage g500 max. : 2.5 °C/W R 30 (case Weight 3.5 g max. Limiting Element U TH (j Voltage - c)Rating Rating and V Mounting 1 Nm L Mounting Torqure 1 Nm Thermal Resistance Limiting Element Voltage U • Tolerance unless otherwise specified: ± 0.3 mm Thermal Resistance 500 V orqure ENVIRONMENTAL Nm Mounting •1 Tolerance unlessENVIRONMENTAL otherwise specified: ± 0.3 mm : 4.2 °C/W R L Thermal Resistance Power Rating and Torqure 1 Nm TH (j - c) RTH (j - c): 2.5 °C/W Free air: Resistance 1 Nm Free Thermal Resistance ENVIRONMENTAL SPECIFICATIONS - 1 min Dielectric Strength VRMS FreeTorqure air: °C/W RTH (j1500 Mounting Torqure 1ofNm Mounting 1V NmComponent Mounting Torqure - c): 4.2 Thermal Th of the of the Component Free air: 1 min Dielectric Strength 1500 the Component Thermal Resistance 1 min Dielectric Strength 3000 V RMS Free air: RMS Temperature Range Temperature - 55 °C Range to + 155 °C - 55 °C to + 155 °C at the + 25Component °C 3.5 W of at of the 10air: mA max. 2.5 W of 2.5 W Component at +MIL-STD-202 25 °C Free DIMENSIONS at + 25 °C DIMENSIONS 10 mA max. MIL -STD 202to + SPECIFICATIONS of the MECHANICAL SPECIFICATIONS ONS 10 mA max. MIL2.25 STDW202 Temperature RangeMECHANICAL 55 °C 175 °C Component 2.5 W at + 25 °C DIMENSIONS Climatic Category 55/155/56 4ELECTRICAL 2.25 W at+10 25 °C DIMENSIONS Climatic Category 55/155/56 Temperature Coefficient See Performance table Temperature Coefficient See Perform SPECIFICATIONS ELECTRICAL SPECIFICATIONS ELECTRICAL SPECIFICATIONS M Insulation DIMENSIONS DIMENSIONS Temperature Coefficient See Performance table Resistance 4 M 4 M Climatic Category 55/175/56 Temperature Coefficient See Performance table Insulation Resistance 10 Insulation Resistance 10 Temperature Coefficient See Performance table Flammability IEC 60695-11-5 Te Standard Package TO220 Resistance package Mechanical Protection Molded Standard Package TO247 package Mechanical Protection Molded Flammability IEC 60695-11-5 ackage TO220Standard package Package TO2200.010 package Standard ± Range 150 ppm/°C Temperature Coefficient See table ± 150 p 0.015 to 1 M Standard 0.010 to 550 kPerformance Inductance 0.1Resistance µH Resistance Range package to 550 k Standard IEC ± Range 150 ppm/°C Flammability 60695-11-5 Standard Package TO220 Standard Package TO220 package Standard Package TO247 package ± 150 ppm/°C 2 applications s 2 applications Inductance 0.1 µH ± 150 ppm/°C Standard Resistive Element ThickStandard film Limiting 0.1 µH Resistive Element Thick film30 30 sInductance Element Voltage 500 V Limiting Element ± 1 % to ± 10 % Voltage UL 500 (Standard) ± 1 % to ± 10 % ± Standard 150 ppm/°C Resistance L Tolerances (Standard) 5Uk Limiting 500 Tolerances (Standard) ± 1 % toElement ± 10 % Voltage UL2Tolerances applications 30 V sCritical separated by 60 s ENVIRONMENTAL SPECIFICATIONS Substrate Alumina ENVIRONMENTAL SPECIFICATIONS Substrate Alumina Critical Resistance NMENTAL SPECIFICATIONS separated by 60 s 2.5 Element k Limiting Voltage UL 500 V ENVIRONMENTAL SPECIFICATIONS Lim Limiting Element Voltage UDielectric Critical Resistance 500 V k Strength L 8.33 - 1 min 1500and VRMS Dielectric Strength 3000 VRM Associated Onto a heatsink Dissipation and Associated Onto min Dielectric Strength Connections 1500 V separated by 60 s - 1Tinned ENVIRONMENTAL SPECIFICATIONS ENVIRONMENTAL SPECIFICATIONS Limiting Element Voltage UL a heatsink 500 V Dissipation ENVIRONMENTAL SPECIFICATIONS RMS Dissipation and Associated Onto a heatsink copper Connections Tinned copper Dielectric 1500 VRMS - 1 min Di 10 mA max. Strength MIL-STD-202 Temperature Range - 55 °C to + 155Dielectric °C - 155 min 1500 VRMS Strength 10 mA Temperature °C to + 175 °C 10 mA max. MIL-STD-202 e Range - 55 °CTemperature to + 155 °C Range - 55 to++25 155 °C temp.) 100 MIL W atSTD + 25202 °C (case temp.) 50 W at + Range 25 °C (case temp.) min Dielectric Strength 1500 VRMS - 1Power Weight 3.5 g max. 30 °C W at °C+(case Weight 2 g max. Rating and Power Rating and 10 mA max. MIL-STD-202 Temperature Range 55 °C to + 155 °C Document Number: 50050 For technical questions, contact: [email protected] www.vishay.com Temperature Range 55 °C to 155 °C MI -R55 °C :to1.5 + °C/W 175 °C 4 MRange 10 mA max. MIL STD 202 Forwww.vishay.com technical questions, contact: [email protected] Document 50049 Climatic Category 55/155/56 Power Rating and For questions, contact: [email protected] Document Number: 50051 Climatic Category 55/175/56 Temperature Insulation Resistance 10 tegory www.vishay.com 55/155/56 Insulation 104 °C/W RTH (j -Number: Climatic Category M 1202 Insulation Resistance 104technical TH (j - c) Resistance c): 2.5 10 mA max.Thermal Resistance MIL STD °C/W Mounting RTH (j - c): 4.2 Torqure Nm Mounting Torqure 1 Nm 55/155/56 Revision: 21-Jan-11 Thermal Resistance Climatic Category 55/155/56 Climatic Category 55/155/56 74 Revision: 21-Jan-11 Climatic77 Category 55/175/56 Revision: 21-Jan-11 Insulation Resistance 104 M Thermal Resistance Ins Flammability IEC 60695-11-5 Flammability IEC4 60695-11-5 Free air: Free air: ty IEC 60695-11-5 Insulation Resistance 104 M Flammability IEC80 60695-11-5 Inductance 0.1 µH Inductance 0.1 Free air: Inductance Insulation 0.1 µH of theFlammability Component of theFlammability Component M Resistance 10 IEC 60695-11-5 Flammability IEC 60695-11-5 of the Component IEC 60695-11-5 3.5 W at + 25 °C 0.1 µH 2.5 W at + 25 °C s 2 applications 30 s 5 Inductance Ind 2 applications 30 s 2.25 WResistance at30 + 25 2 applications s °C 2 applications 30 Inductance 0.1 µH Critical Resistance k Critical Resistance DIMENSIONS 2.5 k 5Inductance k 2 applications sseparated 2Critical applications 30 s DIMENSIONS 2 applications 30 s 5 k 0.1 µH Temperature by 60 s Coefficient by 60 s Coefficient Performance table Temperature See Performance 30 table separated by 60 s Coefficient Critical Resistance See Cr separated by 60 s table separated Temperature See Performance Critical Resistance 8.33 k separated by 60 s separated by 60 s Standard Package separated by 60 s TO247 package Standard Package TO220 package Critical Resistance 8.33 k Standard ± 150 ppm/°C Standard ± 150 ppm/°C °C 0s s Standard ± 150 ppm/°C Document 50050 For technical questions, contact:Number: [email protected] www.vishay.com For technicalwww.vishay.com questions, contact: [email protected] For technicalwww.vishay.com questions, contact: [email protected] Document 500 V For technical questions, contact: www.vishay.com Revs 3000 VRMS - 1 min 77 10 mA max. Limiting Element Voltage UL Limiting Element Voltage 80 UL 500Document V www.vishay.com For V technical questions, contact: [email protected] Number: 50049www.vishay.com Document Number: 50050 For technical questions, contact: [email protected] Limiting Element Voltage U 500 ENVIRONMENTAL SPECIFICATIONS ENVIRONMENTAL SPECIFICATIONS Revision: 21-Jan-11 77 L 77 www.vishay.com For technical questions, contact: [email protected] Document Number: 50049 80 Strength Dielectric Strength 1500 VRMS - 1 min Dielectric Revision: 21-Jan-11 Revision: 21-Jan-11 1500 Revision: 21-Jan-11 10 mA max. MIL-STD-202 - 55 °C to + 155 °CVRMS - 1 min Temperature MIL STD 202 Range - 55 °C to + 175 °C 10 mA max. 4 Climatic Category 55/155/56 ClimaticInsulation CategoryResistance55/175/56 10 M Insulation Resistance Insulation Resistance IEC 60695-11-5 104 M Flammability Flammability IEC 60695-11-5 0.1 µH Inductance Inductance 2 applications 30 s0.1 µH Inductance 2 applications 30 s Critical Resistance 5 k Critical Resistance separated by 60 s Critical Resistance separated by 60 s 8.33 k 74 Dielectric Strength 74 Range Temperature MIL STD 202 Revision 21-Jan-11 mber: 50050 NS Jan-11 Document Number: 50050 echnical questions, contact: [email protected] Revision: 21-Jan-11 PRODUCT SHEET www.vishay.com For technical questions, contact: [email protected] Document Number: 50049 80 Revision: 21-Jan-11 For technicalwww.vishay.com questions, contact: [email protected] 77 2/2 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 104 M 0.1 µH 2.5 k Document Number: 50051 Revision: 21-Jan-11 VMN-PT9158-1605 www.vishay.com