LPS 1100 www.vishay.com Vishay Sfernice Power Resistor for Mounting onto a Heatsink Thick Film Technology FEATURES • Compliant with requirement #26 of NF-EN45545-2 • LPS high power: 1100 W • Wide resistance range: 1  to 1.3 k E24 series • Non inductive • Easy mounting • Low thermal radiation of the case DESIGN SUPPORT TOOLS AVAILABLE • Material categorization: for definitions of complianc e 3DD 33D please see www.vishay.com/doc?99912 3D Models DIMENSIONS in millimeters 25.8 ± 1 LPS 1100 I5U 5 % 25.2 V2 21.2 60 15.2 ± 0.5 36 64.7 2 x Ø 4.2 2 x M4 useful depth: 8 Ø 20 13.6 34 57 Notes • Tolerances unless stated: ± 0.2 mm • Power dissipation is 1100 W by using a water cooled heatsink at T = 15 °C of R = 0.059 °C/W (25 °C to the nearest point of the resistor water th onto heatsink) and R contact estimated at 0.07 °C/W th STANDARD ELECTRICAL SPECIFICATIONS RESISTANCE RANGE RATED POWER P TOLERANCE TEMPERATURE COEFFICIENT MODEL 25 °C  W ± % ± ppm/°C LPS 1100 1 to 1.3K 1100 1, 2, 5, 10 150 MECHANICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS Insulated case and resin for 1100 W at +25 °C Mechanical Protection Power Rating and  potting UL 94 V-0 Thermal Resistance On heatsink R : 0.039 °C/W Resistive Element Thick film th(j-c) Temperature Coefficient R  1 : ± 500 ppm/°C End Connections Screws M4 (-55 °C to +200 °C), 1  < R  10 : ± 300 ppm/°C Tightening Torque Connections 2 Nm IEC 60115-1 10  < R: ± 150 ppm/°C Tightening Torque Heatsink 2 Nm Dielectric Strength Maximum Torque 2.5 Nm I1E mC i6n0, 11105 m-1A, max. 7 kVRMS or 12 kVRMS Weight 79 g ± 10 % Lightning test 1.2/50 μs  Until 12 kV IEC 61000-4-5 ENVIRONMENTAL SPECIFICATIONS Insulation  104 M Temperature Range -55 °C to +200 °C Inductance  0.1 μH Climatic Category 55 / 200 / 56 Partial Discharge  100 pC/7 kV  10 pC/5 kV (for LPS 1100 D only) Other cases: Consult us Revision: 05-Jun-2019 1 Document Number: 50059 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

LPS 1100 www.vishay.com Vishay Sfernice PERFORMANCE TESTS CONDITIONS REQUIREMENTS IEC 60115-1: 2 x P / 10 s for heatsink with r Momentary Overload Rth(h-a)  0.26 °C/W (maximum power: 700 W) ± (0.25 % + 0.05 ) 1.6 x Pr / 1 s for heatsink with 0.26 °C/W >Rth(h-a)  0.059 °C/W (maximum power: 1800 W) AEC-Q200 conditions: IEC 60115-1/IEC 60068-2-14, Test Na 50 cycles (-55 °C to +200 °C) ± (0.5 % + 0.05 ) for all the ohmic values Rapid Temperature Change ± (5 % + 0.05 ) for R < 38  1000 cycles (-55 °C to +200 °C) ± (0.5 % + 0.05 ) for R  38  AEC-Q200 conditions: IEC 60115-1 ± (5 % + 0.05 ) for R < 38  Load Life 2000 h (90/30) Pr ± (0.5 % + 0.05 ) for R  38  Humidity (Steady State) AEC-Q200 conditions: IEC 60115-1, 1000 h RH 85 % / 85 °C ± (0.5 % + 0.05 ) AEC-Q200 conditions: MIL-STD-202 method 213 condition D Mechanical Shock ± (1 % + 0.05 ) (100 g’s / 6 ms 3.75 m/s) AEC-Q200 conditions: MIL-STD-202 method 204 condition D Vibration ± (1 % + 0.05 ) (5 g, 20 min 10/2000 Hz) Climatic Sequence AEC-Q200 conditions: IEC 60115-1 (55 / 200 / 56) ± (1 % + 0.05 ) RECOMMENDATIONS FOR MOUNTING ONTO A HEATSINK • Surfaces in contact must be carefully cleaned • The heatsink must have an acceptable flatness: From 0.05 mm to 0.1 mm/100 mm • Roughness of the heatsink must be around 6.3 μm. In order to improve thermal conductivity, surfaces in contact (ceramic , heatsink) should be coated with a silicone grease (type Bluesil Past 340 from Blue Star Silicones). Thermal film (type Q-pad II from Berquist) is also possible, easier and faster to install than grease but with a lower efficiency for the power dissipation • The fastening of the resistor to the heatsink is under pressure control of two screws tightened at 2 Nm for full power availability LPS 1100 Tightening Torque on Heatsink 2 Nm • The following accessories are supplied with each product: - 2 screws CHC M4 x 25 class 8.8 and 2 M4 contact lock washers for heatsink mounting - 2 screws TH M4 x 6/6 and 2 M4 contact lock washers for connections CHOICE OF THE HEATSINK AND THE THERMAL INTERFACE The user must choose the heatsink according to the working conditions of the component (power, room temperature) . Maximum working temperature must not exceed 200 °C. The dissipated power is simply calculated by the following ratio: T P = --------------------------------------------------------------------------------------------- R +R +R  th (j - c) th (c - h) th (h - a) P: Expressed in W T: Difference between maximum working temperature and room temperature or fluid cooling temperature R : Thermal resistance value measured between resistive layer and outer side of the resistor. It is the therma l th (j - c) resistance of the component: 0.039 °C/W R : Thermal resistance value measured between outer side of the resistor and upper side of the heatsink. This is th e th (c - h) thermal resistance of the interface (grease, thermal pad), and the quality of the fastening device R : Thermal resistance of the heatsink th (h - a) Example: R + R for LPS 1100 power dissipation 850 W at + 18 °C fluid temperature th (c - h) th (h - a) T200 °C - 18 °C =182 °C T 182 R +R +R = ------- = ---------- =0.214 °C/W th (j - c) TH (c - h) TH (h - a) P 850 R = 0.039 °C/W th (j - c) R +R =0.214 °C/W - 0.039 °C/W =0.175 °C/W th (c - h) th (h - a) Revision: 05-Jun-2019 2 Document Number: 50059 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

LPS 1100 www.vishay.com Vishay Sfernice CONFIG. 1: CONFIG. 2: CONFIG. 3: CONFIG. 4: WATER COOLING AIR COOLING WATER COOLING AIR COOLING HEATSINK CP15 AND HEATSINK P207/250 AND HEATSINK CP15 AND HEATSINK P207/250 AND THERMAL GREASE THERMAL GREASE THERMAL PAD Q-PAD II THERMAL PAD Q-PAD II BLUESIL PAST 340 BLUESIL PAST 340 Power Dissipation (W) 1100 350 650 285 T° Resistive Element (°C) 200 200 200 200 R max. (°C/W) 0.039 0.039 0.039 0.039 th(j-c) R typ. (°C/W) 0.070 0.201 0.187 0.315 th(c-h) R max. (°C/W) 0.059 0.260 0.059 0.260 th(h-a) Fluid T° (°C) 15 (water) 25 (air) 15 (water) 25 (air) Note • Configuration 1: Water cooling heatsink (CP15 from Lytron (304 mm x 95.3 mm x 8 mm) with water flow rate 4LPM and thermal grease Bluesil Past 340 from BlueStar Silicones Configuration 2: Air cooling heatsink P207/250 from Semikron (250 mm x 200 mm x 72 mm) and thermal grease Bluesil Past 340 fro m BlueStar Silicones Configuration 3: Water cooling heatsink (CP15 from Lytron (304 mm x 95.3 mm x 8 mm) with water flow rate 4LPM and thermal pa d Q-pad II from Berquist Configuration 4: Air cooling heatsink P207/250 from Semikron (250 mm x 200 mm x 72 mm) and thermal pad Q-pad II from Berquist OVERLOAD MARKING In any case the applied voltage must be lower than Series, style, ohmic value (in ), tolerance (in %), UI = 6600 V. manufacturing date, Vishay Sfernice trademark. Short time overload: 2 x Pr/10 s for heatsink with Rth(h-a)  0.26 °C/W (maximum power: 700 W) and 1.6 x POWER RATING Pr/1 s for heatsink with 0.26 °C/W > R  0.059 °C/W th(h-a) (maximum power: 1800 W). The temperature of the case should be maintained withi n Accidental overload: The values indicated on the following the limit specified in the following figure. To optimize graph are applicable to resistors in air or mounted onto a the thermal conduction, contacting surfaces should be heatsink. coated with silicone grease or thermal film, and heatsink ENERGY CURVE mounting screws tightened to 2 Nm. 10 000 100 1000 J %80 GY IN R IN R 100 WE60 E N O E P D 40 10 E T A R 20 1 0.0001 0.001 0.01 0.1 1 10 100 0 OVERLOAD DURATION IN ms 0 25 50 75 100 125 150 175 200 POWER CURVE HEATSINK TEMPERATURE IN °C 100 000 PACKAGING 10 000 Box of 15 units W k 1000 N R I WE 100 O P 10 1 0.0001 0.001 0.01 0.1 1 10 100 OVERLOAD DURATION IN ms Revision: 05-Jun-2019 3 Document Number: 50059 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

LPS 1100 www.vishay.com Vishay Sfernice ORDERING INFORMATION LPS 1100 1 k ± 1 % xxx BO15 e RESISTANCE CUSTOM MODEL STYLE TOLERANCE PACKAGING LEAD (Pb)-FREE VALUE DESIGN ± 1 % Optional on ± 2 % request: ± 5 % special TCR, ± 10 % shape, etc. GLOBAL PART NUMBER INFORMATION L P S 1 1 0 0 H 4 7 R 0 J B GLOBAL DIELECTRIC OHMIC VALUE TOLERANCE PACKAGING SPECIAL MODEL LPS 1100 L = dielectric The first three digits are F = 1 % B = box 15 pieces As applicable strengh 7 kV significant figures and the G = 2 % ZAx H = dielectric last digit specifies the J = 5 % strengh 12 kV number of zeros to follow. K = 10 % D = partial R designates decimal point. discharge 48R7 = 48.7   100 pC/7 kV and 47R0 = 47   10 pC/5 kV 1001 = 1 k 4R70 = 4.7  R240 = 0.24  Revision: 05-Jun-2019 4 Document Number: 50059 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

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