RTO020F27000JTE3

RTO 20 www.vishay.com Vishay Sfernice 20 W Power Resistor, Thick Film Technology, TO-220 FEATURES • 20 W at 25 °C heatsink mounted • High power dissipation to size ratio • Wide resistance range from 0.01  to 550 k • Negligible inductance • Easy mounting • TO-220 package: compact and easy to mount DESIGN SUPPORT TOOLS • Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 click logo to get started Two versions of this thick film resistor are available: • A radial leaded version for PCB mounting Models Available The well known TO-220 package is compact and easy to mount. • A flat lead version for surface mounting DIMENSIONS in millimeters RTO 20F - LEADED 10.1 Ø 3.6 12.5 RTO 20C - FOR SURFACE MOUNTING 4.5 10.1 1.3 Ø 3.6 15 12.5 8.8 4.5 1.3 15 8.8 2 3 13.7 0.3 1.6 Ø 0.8 2.5 5.08 • Only for RTO 20 version C = during surface mount soldering temperature profile must not cause the metal tab of this device to exceed 220 °C. 5.08 Note • Tolerances unless stated: ± 0.4 mm STANDARD ELECTRICAL SPECIFICATIONS MODEL SIZE RTO 20 Note (1) E24 series TO-220 RESISTANCE RATED POWER RANGE P25 °C  W 0.010 to 550K (1) 20 LIMITING ELEMENT VOLTAGE UL V 500 TOLERANCE ±% 1, 2, 5, 10 TEMPERATURE COEFFICIENT ± ppm/°C 150 MECHANICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS Mechanical Protection Resistive Element Dissipation and Associated Substrate Connections Weight Insulated case Thick film Alumina onto base of nickel coated copper Tinned copper 2.2 g max. ENVIRONMENTAL SPECIFICATIONS Temperature Range Climatic Category Sealing Flammability -55 °C to 155 °C 55 / 155 / 56 Sealed container, solder immersion IEC 60695-11-5 2 applications 30 s separated by 60 s CRITICAL RESISTANCE  12.5K Onto a heatsink Thermal Resistance and Nominal Power 20 W at + 25 °C RTH (j - c): 6.5 °C/W Free air: 2 W at +25 °C Dielectric Strength MIL STD 202 2000 VRMS - 1 min - 10 mA max. (between terminals and heatsink) Insulation Resistance  106 M Inductance  0.1 μH DIMENSIONS Standard Package TO-220 insulated case Note • Not compatible with RoHS reflow profile Revision: 16-Nov-17 Document Number: 50005 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 RTO 20 www.vishay.com Vishay Sfernice PERFORMANCE TESTS Momentary Overload Rapid Temperature Change Load Life Humidity (Steady State) High Temperature Exposure CONDITIONS REQUIREMENTS EN 60115-1 2 Pr 5 s for R < 2  1.6 Pr 5 s for R  2  US < 1.5 UL ± (0.25 % + 0.005 ) EN 60115-1/60068-2-14 5 cycles -55 °C to +155 °C ± (0.5 % + 0.005 ) EN 60115-1 1000 h Pr at +25 °C ± (1 % + 0.005 ) EN 60115-1 56 days RH 95 % ± (0.5 % + 0.005 ) NF EN 140 000 1000 h - 40 % Pr at +100 °C ± (0.5 % + 0.005 ) Vibration MIL STD 202, Method 204 C Test D ± (0.2 % + 0.005 ) Terminal Strength MIL STD 202, Method 211 Test A1 ± (0.2 % + 0.005 ) IEC 60115-1 IEC 60068-2-27 Saw tooth: 100 g/6 ms ± (0.5 % + 0.005 ) Shock RESISTANCE VALUE IN RELATION TO TOLERANCE AND TCR  0.01 Resistance Values  0.015 Tolerances  0.1  0.5 ± 250 ppm/°C ± 150 ppm/°C ± 1 % at ± 10 % Typical Temperature Coefficient Range (-55 °C to +155 °C) ± 900 ppm/°C ± 700 ppm/°C Note • For very low ohmic values, TCR for information CHOICE OF THE HEATSINK The user must choose the board according to the working conditions of the component (power, room temperature). Maximum working temperature must not exceed 155 °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: Special Features table. 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 - a) for RTO 20 power rating 10 W at ambient temperature +25 °C Thermal resistance RTH (j - c): 6.5 °C/W  Considering equation (1) we have: T = 155 °C - 25 °C = 130 °C  T P 130 10 RTH (j - c) + RTH (c - h) + RTH (h - a) = ------- = -------- = 13 °C/W RTH (c - h) + RTH (h - a) = 13 °C/W - 6.5 °C/W = 6.5 °C/W Revision: 16-Nov-17 Document Number: 50005 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 RTO 20 www.vishay.com Vishay Sfernice OVERLOADS POWER RATING In any case the applied voltage must be lower than the maximum overload voltage of 750 V. The temperature of the heatsink should be maintained within the limits specified. The values indicated on the graph below are applicable to resistors in air or mounted onto a heatsink. To improve the thermal conductivity, surfaces in contact should be coated with a silicone grease and the torque applied on the screw for tightening should be around 1 Nm. Spring clip can also be used to mount the component on an heatsink (ex: Kunze, clip KU4-498). MARKING Model, style, resistance value (in ), tolerance (in %), manufacturing date, Vishay Sfernice trademark. 120 ENERGY CURVE RATED POWER IN % 100 ENERGY IN JOULES 100 10 1 0.1 0.01 75 50 25 0 0 20 40 60 80 100 120 140 155 HEATSINK TEMPERATURE IN °C 0.001 10-7 10-6 10-5 10-4 10-3 10-2 10-1 OVERLOAD DURATION IN s PACKAGING POWER CURVE Tube of 50 units POWER IN W 100 000 10 000 1000 100 10-7 10-6 10-5 10-4 10-3 10-2 10-1 OVERLOAD DURATION IN s Revision: 16-Nov-17 Document Number: 50005 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 RTO 20 www.vishay.com Vishay Sfernice ORDERING INFORMATION RTO 20 F U68 5% xxx TU50 e3 MODEL STYLE CONNECTIONS RESISTANCE VALUE TOLERANCE CUSTOM DESIGN PACKAGING LEAD (Pb)-FREE ±1% ±2% ±5% ± 10 % Optional on request: special TCR, shape etc. F: radial leads C: surface mount GLOBAL PART NUMBER INFORMATION R T O 0 2 0 F R 6 8 0 0 J T E 3 GLOBAL MODEL STYLE DIELECTRIC OHMIC VALUE TOLERANCE PACKAGING RTO 020 F = radial leads C = surface mount The first four digits are significant figures and the last digit specifies the number of zeros to follow. R designates decimal point. F=1% G=2% J=5% K = 10 % T = tube Size 30 and 50: Tube 50 pieces 48R70 = 48.7  48701 = 48 700  10002 = 100 000  R0100 = 0.01  R6800 = 0.68  27000 = 2700  = 2.7 k Revision: 16-Nov-17 Document Number: 50005 4 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 Legal Disclaimer Notice www.vishay.com Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. 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ALL RIGHTS RESERVED Revision: 01-Jan-2022 1 Document Number: 91000