DCRF www.vishay.com Direct Water Cooled Wirewound Resistor DESIGN SUPPORT FEATURES • Direct cooling without heatsink • Excellent power / volume ratio • Multi resistive element option • Material categorization: for definitions of compliance please see www.vishav.com/doc?99912 APPLICATIONS • Filter resistor • Snubber resistor • Discharge resistor Models Available Revision: 16-Nov-17 1 Document Number: 32548 For technical questions, contact: [email protected] 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

www.vishay.com DCRF Vishay MCB GENERAL CHARACTERISTICS (1) Water conductivity must be permanently controlled to remain under 2 ps/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 pS/cm) Revision: 16-Nov-17 2 Document Number: 32548 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET...

DCRF www.vishay.com POWER DISSIPATION FLOW RATE Axis Title 2nd line Pn - Nominal Power (%) 2nd line Pn - Nominal Power (%) 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 PRESSURE DROP Axis Title Axis Title 2nd line Pressure Drop (mbar) 2nd line Maximum Inductance (nH) Rated Value (Ω) 2nd line Flow Rate (l/min) 2nd line Fig. 3 - Inductance vs. Ohmic Value Maximum Inductance (may Vary for Particular...

www.vishay.com DCRF Vishay MCB ORDERING INFORMATION DCRF 38 x 178 U56 ± 10 % MODEL STYLE RESISTANCE VALUE TOLERANCE Optional On request: special value, multiple resistor, etc. GLOBAL PART NUMBER INFORMATION For technical questions, contact: [email protected] 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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