LTO 150 www.vishay.com Vishay Sfernice Clip Mount Power Resistor Thick Film Technology FEATURES * 150 W at 45 C case temperature heatsink mounted * Direct mounting ceramic on heatsink * Broad resistance range: 0.03 to 1.3 M * Non inductive * TO-247 package: compact and easy to mount * Designed for clip mounting * UL 94 V-0 material used - compliant with EN45545-2 LTO150 are the extension of LTO series. The component is used in direct contact with heatsink. Fixation done by clip. ADDITIONAL RESOURCES * AEC-Q200 qualified * Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 3D 3D 3D Models DIMENSIONS in millimeters 15.76 5 5.33 10.5 R2 20.7 0.3 3.5 3.6 0.6 10.16 14.5 2.4 Note * Tolerances unless stated: 0.3 mm STANDARD ELECTRICAL SPECIFICATIONS MODEL SIZE RESISTANCE RANGE LTO 150 TO-247 0.03 to 1.3M RATED POWER LIMITING ELEMENT TOLERANCE P45 C VOLTAGE UL % W V 150 500 1, 2, 5, 10 TEMPERATURE COEFFICIENT ppm/C CRITICAL RESISTANCE 200, 350, 900 1.66K MECHANICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS Mechanical Protection Dissipation and Associated Resistive Element Substrate Connections Weight Molded Thick film Alumina Tinned copper 4 g max. Power Rating and Thermal Resistance of the Component Temperature Coefficient Onto a heatsink + clip 150 W at +45 C (case temp.) RTH (j - c): 0.87 C/W Free air: 4.5 W at +25 C See Performance table 200 ppm/C Dielectric Strength IEC 60115-1 3000 VRMS - 1 min 10 mA max. ENVIRONMENTAL SPECIFICATIONS Insulation Resistance 104 M Temperature Range Inductance 0.1 H Clip Assembly Force Climatic Category Flammability Revision: 27-Sep-2019 60 N to 110 N -55 C to +175 C 55 / 175 / 56 IEC 60695-11-5 2 applications 30 s separated by 60 s Document Number: 50071 1 For technical questions, contact: sferfixedresistors@vishay.com 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 LTO 150 www.vishay.com Vishay Sfernice PERFORMANCE TESTS Momentary Overload Load Life High Temperature Exposure Temperature Cycling Biased Humidity Operational Life ESD Human Body Model Vibration Mechanical Shock Terminal Strength CONDITIONS IEC 60115-1 1.5 Pr/5 s US < 1.5 UL IEC 60115-1 1000 h Pr (free air) at +25 C 90/30 AEC-Q200 REV D conditions: MIL-STD-202 method 108 1000 h, +175 C, unpowered AEC-Q200 REV D conditions: JESD22 method JA-104 1000 cycles, -55 C to +125 C dwell time -15 min AEC-Q200 REV D conditions: MIL-STD-202 method 103 1000 h, 85 C, 85 % RH (10 % of free air power) AEC-Q200 REV D conditions: MIL-STD-202 method 108 1000 h, 90/30, powered (free air) at +125 C AEC-Q200 REV D conditions: AEC-Q200-002 IEC 61000-4-2 25 kVAD AEC-Q200 REV D conditions: MIL-STD-202 method 204 5 g's for 20 min, 12 cycles test from 10 Hz to 2000 Hz AEC-Q200 REV D conditions: MIL-STD-202 method 213 100 g's, 6 ms, 3.75 m/s 3 shocks/direction AEC-Q200 REV D conditions: AEC-Q200-006 2 kgf, 60 s REQUIREMENTS (0.5 % + 0.005 ) (1 % + 0.005 ) (0.5 % + 0.005 ) (1 % + 0.005 ) (1 % +0.005 ) (1 % +0.005 ) (0.5 % +0.005 ) (0.5 % +0.005 ) (0.5 % +0.005 ) (0.25 % +0.01 ) SPECIAL FEATURES Resistance Values 0.03 Tolerances Typical Temperature Coefficient (-55 to +175 C) 0.1 > 20 1 % at 10 % 900 ppm/C 350 ppm/C 200 ppm/C CHOICE OF THE HEATSINK The user must choose according to the working conditions of the component (power, room temperature). Maximum working temperature must not exceed 175 C. The dissipated power is simply calculated by the following ratio: 1 T P = ---------------------------------------------------------------------------------- R TH (j - c) + R TH (c - h) + R TH (h - a) P: Expressed in W T: Difference between maximum working temperature and room temperature RTH (j - c): Thermal resistance value measured between resistive layer and outer side of the resistor. It is the thermal resistance of the component. RTH (c - h): Thermal resistance value measured between outer side of the resistor and upper side of the heatsink. This is the thermal resistance of the interface (grease, thermal pad), and the quality of the fastening device. RTH (h - a): Thermal resistance of the heatsink Example: RTH (c - h) + RTH (h - a) for LTO 150 power rating 10 W at ambient temperature +25 C Thermal resistance RTH (j - c): 0.87 C/W Considering equation (1) we have: T = 175 C - 25 C = 150 C 150 T RTH (j - c) + RTH (c - h) + RTH (h - a) = ------- = ----------- = 15 C/W 10 P RTH (c - h) + RTH (h - a) = 15 C/W - 0.87 C/W = 14.13 C/W Example with a thermal grease RTH (c - h) = 0.5 C/W, we need a heatsink with RTH (h - a) = 13.63 C/W Revision: 27-Sep-2019 Document Number: 50071 2 For technical questions, contact: sferfixedresistors@vishay.com 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 LTO 150 www.vishay.com Vishay Sfernice CONFIGURATION 1 CONFIGURATION 2 CONFIGURATION 3 Power Dissipation (W) 150 35 26 T Resistive Element (C) 175 175 175 RTH (j - c) Max. (C/W) 0.87 0.87 0.87 RTH (c - h) Typ. (C/W) 0.127 0.33 0.33 RTH (h - a) Max. (C/W) 0.069 3.09 4.57 15 (water) 25 (air) 25 (air) Fluid T (C) CONFIGURATION 1: Water cooling heatsink CP15 from Lytron (304 mm x 95.3 mm x 8 mm) with water flow rate 4 LPM and thermal grease Bluesil Past 340 from BlueStar silicones. MAX08NG from AAVID screwed clip mounting. CONFIGURATION 2: Air cooling heatsink 0S552 from AAVID (48 mm x 80 mm x 70 mm) and thermal grease Bluesil Past 340 from BlueStar silicones. MAX03HNG from AAVID clipped mounting. CONFIGURATION 3: Air cooling heatsink 0S550 from AAVID (31.75 mm x 58.7 mm x 70 mm) and thermal grease Bluesil Past 340 from BlueStar silicones. MAX03HNG from AAVID clipped mounting. MOMENTARY OVERLOAD POWER RATING In any case the applied voltage must be lower than the maximum overload voltage of 750 V during 5 s. The temperature of the case should be maintained within the limits specified. 125 The values indicated on the graph below are applicable to resistors in air or mounted onto a heatsink. 100 RATED POWER IN % ENERGY CURVE (SINGLE PULSE) ENERGY IN JOULES 100 10 1 75 50 25 0 0.1 0 20 40 60 80 100 120 140 160 175 CASE TEMPERATURE IN C 0.01 10-7 10-6 10-5 10-4 10-3 10-2 10-1 100 PACKAGING OVERLOAD DURATION IN s Tube of 30 units POWER CURVE 1 000 000 MARKING Model, style, resistance value (in ), tolerance (in %), manufacturing date, Vishay Sfernice trademark according IEC 60062. POWER IN W 100 000 10 000 1000 100 10-7 10-6 10-5 10-4 10-3 10-2 10-1 100 OVERLOAD DURATION IN s Revision: 27-Sep-2019 Document Number: 50071 3 For technical questions, contact: sferfixedresistors@vishay.com 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 LTO 150 www.vishay.com Vishay Sfernice CLIPS ACCLLTO150CL (MAX03HNG) ACCLLTO150VS (MAX08NG) O 4.2 18 18 30.55 21.5 5.9 9.3 0.6 0.6 23.5 14.7 CLIP MOUNTING RECOMMENDATION To improve the thermal conductivity, all surface of ceramic has to be coated with a thermal silicon grease. If you not use our clipped or screwed clip, it is recommended that a mounting force of 60 N to 110 N be applied to the center of the molding case of the component. Tightening torque 2 Nm when mounting screwed clip MAX08NG on heatsink. ORDERING INFORMATION LTO 150 F 2.7 k 1% xxx TU30 e3 MODEL STYLE CONNECTIONS RESISTANCE VALUE TOLERANCE CUSTOM DESIGN PACKAGING LEAD (Pb)-FREE 1% 2% 5% 10 % Optional on request: special TCR, shape etc. GLOBAL PART NUMBER INFORMATION L T O 1 5 0 F 2 7 0 0 0 J T E 3 GLOBAL MODEL SIZE LEADS OHMIC VALUE TOLERANCE PACKAGING LEAD (Pb)-FREE LTO 150 F = radial leads The first four digits are significant figures and the last digit specifies the number of zeros to follow. R designates decimal point. 48R70 = 48.7 48701 = 48 700 10002 = 100 000 R0100 = 0.01 R4700 = 0.47 27000 = 2700 = 2.7 k F=1% G=2% J=5% K = 10 % T = tube E3 = pure tin Tube 30 pieces CLIP PART NUMBER INFORMATION REFERENCE PART NUMBER FOR ORDERING Screwed clip MAX08NG ACCLLTO150VS Clipped clip MAX03HNG ACCLLTO150CL Revision: 27-Sep-2019 Document Number: 50071 4 For technical questions, contact: sferfixedresistors@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. 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