DCRF381781R60JB

DCRF www.vishay.com Vishay MCB Direct Water Cooled Wirewound Resistor FEATURES • Direct cooling without heatsink • Excellent power / volume ratio • Multi resistive element option • Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 APPLICATIONS • Filter resistor • Snubber resistor DESIGN SUPPORT TOOLS click logo to get started • Discharge resistor Models Available STANDARD ELECTRICAL SPECIFICATIONS POWER RATING Pn (1) W RESISTANCE RANGE  TOLERANCE ±% DCRF 38 x 178 1500 0.56 to 4.7 5, 10 (2) DCRF 38 x 224 3000 1 to 9.1 5 DCRF 38 x 270 4500 1.5 to 15 5 DCRF 38 x 316 6000 2 to 20 5 DCRF 38 x 362 7500 2.4 to 24 5 DCRF 38 x 410 9000 3 to 27 5 GLOBAL MODEL Notes (1) Water inlet temperature 65 °C with 40 % mono ethylene glycol, flow rate 8.33 l/min (2) 5 for value  1 , 10 for value < 1  TECHNICAL SPECIFICATIONS PARAMETER UNIT RESISTOR CHARACTERISTICS ppm/°C 100 ppm/°C (typical) Maximum working voltage V Up to 3600 V Operating temperature range °C -55 to +120 μs/cm 600 On request Document Number: 32548 1 For technical questions, contact: mcbfixedresistors@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 DCRF www.vishay.com Vishay MCB GENERAL CHARACTERISTICS Clearance distance On request Dielectric strength 8000 V (2) VRMS (50 Hz / 1 min) Partial discharge For free partial discharge version please consult us Electrical connections M4 rod (tightening 2 Nm max.) Mounting Minimum 5° angle from horizontal (see “Mounting Recommendation”) Overload 2 × Pn 60 s (65 °C at 8.33 l/min) Endurance 1200 h; Pn 30 s / 30 s; variation < 5 % (MCB laboratory condition) Pressure drop Refer to “Pressure Drop” curves (see Fig. 4) Notes (1) Water conductivity must be permanently controlled to remain under 2 μs/cm. The cooling mixture must remain homogeneous without any liquid or solid foreign element. Use appropriate filter with regenerating mixed bed resin device (2) Resistor filled with deionized water (conductivity < 2 μS/cm) DIMENSIONS in millimeters U d1 Q W H h D L E V B e K A k X TYPE Water pipe fitting internal diameter A B +0.5 / -0 D max. e E H max. k K L max. Ø Q U±6 V W X±6 Weight kg Revision: 16-Nov-17 38 x 178 38 x 224 38 x 270 38 x 316 38 x 362 38 x 410 Ø 6.6 mini Ø 6.6 mini Ø 6.6 mini Ø 6.6 mini Ø 6.6 mini Ø 6.6 mini 32 44 43 Ø M4 9 80 32 32 213 38 G 3/8" 178.8 35 34 182.8 0.77 78 44 43 Ø M4 9 80 32 32 259 38 G 3/8" 224.8 35 34 228.8 0.89 124 44 43 Ø M4 9 80 32 32 305 38 G 3/8" 270.8 35 34 274.8 1.01 170 44 43 Ø M4 9 80 32 32 351 38 G 3/8" 316.8 35 34 320.8 1.13 216 44 43 Ø M4 9 80 32 32 397 38 G 3/8" 362.8 35 34 366.8 1.26 264 44 43 Ø M4 9 80 32 32 445 38 G 3/8" 410.8 35 34 414.8 1.38 Document Number: 32548 2 For technical questions, contact: mcbfixedresistors@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 DCRF www.vishay.com Vishay MCB POWER DISSIPATION FLOW RATE Axis Title Axis Title 10000 120 100 60 40 100 20 1000 80 1st line 2nd line 1000 80 2nd line Pn - Nominal Power (%) 40 % Glycol 1st line 2nd line 60 40 100 20 0 0 10 10 20 30 40 50 60 70 80 90 100 10 0 5 10 20 Water Inlet Temperature (°C) 2nd line Flow Rate (l/min) 2nd line Fig. 1 - Power vs. Water Inlet Temperature Pn = f (Water Inlet Temperature), Flow Rate = 8.33 l/min Fig. 2 - Power vs. Flow Rate Pn = f (Flow Rate), Water Inlet Temperature = 65 °C INDUCTANCE PRESSURE DROP Axis Title Axis Title 3000 38 x 410 1000 10000 2500 1000 38 x 316 1500 38 x 270 1000 100 38 x 224 500 38 x 178 2nd line Pressure Drop (mbar) 800 38 x 362 2000 700 600 10 2 1000 3 500 4 400 100 5 300 200 10 1 1 6 100 0 0.1 10000 1. 38 x 410 2. 38 x 362 3. 38 x 316 4. 38 x 270 5. 38 x 224 6. 38 x 178 900 1st line 2nd line 2nd line Maximum Inductance (nH) 15 1st line 2nd line 2nd line Pn - Nominal Power (%) 100 10000 120 0 10 0 100 2 4 6 8 10 12 14 16 18 Rated Value (Ω) 2nd line Flow Rate (l/min) 2nd line Fig. 3 - Inductance vs. Ohmic Value Maximum Inductance (may Vary for Particular Rated Values) Fig. 4 - Pressure Drop vs. Flow Rate 40 % of Mono Ethylene Glycol at 20 °C MOUNTING RECOMMENDATION OK Revision: 16-Nov-17 OK NOK Document Number: 32548 3 For technical questions, contact: mcbfixedresistors@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 DCRF www.vishay.com Vishay MCB ORDERING INFORMATION DCRF 38 x 178 U56 ± 10 % XXX BO12 MODEL STYLE RESISTANCE VALUE TOLERANCE CUSTOM DESIGN PACKAGING ±5% ± 10 % Optional On request: special value, multiple resistor, etc. GLOBAL PART NUMBER INFORMATION D C R F 3 1 8 1 7 8 0 R 2 5 6 3 K B 4 5 8 7 9 6 1 2 3 4 5 6 PRODUCT TYPE TYPE RESISTANCE VALUE TOLERANCE PACKAGING INDUSTRIALIZATION NUMBER DCRF 38178 38224 38270 38316 38362 38410 The first three digits are significant figures and the last specifies the number of zeros to follow, R designates decimal point. 4R7 = 4.7  0R56 = 0.56  J=5% K = 10 % B = box Box quantity depends of model and size 3 specific digits (if applicable) Revision: 16-Nov-17 Document Number: 32548 4 For technical questions, contact: mcbfixedresistors@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. Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product. 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No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners. © 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED Revision: 08-Feb-17 1 Document Number: 91000