RCEC 750 www.vishay.com Vishay MCB Power Resistors Cooled by Auxiliary Heatsink (Not Supplied) Thick Film Technology FEATURES • Technology: thick film deposited on ceramic • Cold system without external radiation • High power / volume ratio • Non-inductive • Easy assembly, self calibrated pressure (400 N) STANDARD ELECTRICAL SPECIFICATIONS MODEL RESISTANCE RANGE MAX. RATED POWER P75 °C W RCEC 750 1 to 1M 750 TOLERANCE ±% TEMPERATURE COEFFICIENT ± ppm/°C E-SERIES OHMIC VALUES 10, 5 150 (typical) E 12 MECHANICAL SPECIFICATIONS UL 94 flame classifications Material complies with the standard UL 94 V-0 Resistive element Cermet Substrate Alumina Encapsulation Resin filled case TECHNICAL SPECIFICATIONS PARAMETER 750 750HV Operating temperature range -55 °C to +150 °C Maximum operating voltage 5000 V Dielectric strength VRMS (50 Hz / 1 min) 7000 V 12 000 V Creepage distance 42 mm 75 mm Clearance distance 12 mm 30 mm Capacitance: ground 120 pF Capacitance: parallel 40 pF Partial discharge Inductance Insulation resistance Weight (max.) Revision: 14-Jun-16 500 pC at 7000 Veff 10 pC at 5000 Veff Other cases: consult us 40 nH 105 M at 500 VCC 120 g Document Number: 32509 1 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 RCEC 750 www.vishay.com Vishay MCB DIMENSIONS in millimeters Standard HV 25 ± 0.5 40 ± 0.5 Ø8 14.5 14 6 2 x screw M4* 60 ± 0.3 24 60 36 ± 0.2 34 ± 0.2 57 ± 0.2 67 24 PERFORMANCES TESTS Momentary overload Humidity (steady state) VRT Mechanical shock Vibration Terminals strength Endurance CONDITIONS REQUIREMENTS TYPICAL VALUES 1200 W / 10 s = 70 °C 2% 0.2 % 56 days, 40 °C, 95 % HR 2 % or 0.05 (1) insul. > 103 M 0.2 % -55 °C to +125 °C 5 cycles 2 % or 0.05 (1) 0.2 % CEI 61373 cat 1 class B Half sinus 50 m/s2 / 30 ms 6 per axis (3 negative and 3 positive) 0.5 % or 0.05 (1) 0.25 % CEI 61373Cat 1 class B random 5 Hz to 150 Hz 7.9 m/s2 5 h per axis 0.5 % or 0.05 (1) 0.25 % 200 Ncm / 200 N 1 % or 0.05 (1) 0.1 % 2000 cycles Pn 30 min / 30 min 5% 0.2 % Note (1) The higher of either value ENERGY ABSORPTION R < 390 R > 390 Repetitive operation: 8 J/t = 50 μs Accidental operation: 20 J/t = 50 μs / 120 impulsions max. Repetitive operation: 4 J/t = 50 μs Other t values: consult us Revision: 14-Jun-16 Document Number: 32509 2 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 RCEC 750 www.vishay.com Vishay MCB DISSIPATION Axis Title Axis Title 80 800 10000 70 700 60 600 1000 30 1st line 2nd line 1st line P (W) 40 1000 500 1st line 2nd line 50 1st line Δθ (°C) 10000 400 300 100 20 100 200 10 100 Δθ = f (P) 0 P = f (θ) 10 0 100 200 300 400 500 600 0 700 10 0 25 50 75 100 125 150 P (W) θ (°C) Temperature Rise as a Function of the Power Applied Overall Thermal Resistance 0.10 °C/W (See Assembly) Permanent Applicable Power as a Function of Heatsink Temperature OVERLOAD Axis Title 2500 10000 2000 1st line 2nd line Axis Title P (W) 1000 1500 1000 100 500 0 1 10 10 1000 100 t (s) Intermittent Overload (Exceptional Operation) Heatsink Temperature 70 °C ASSEMBLY 57 M4 min. depth 5 ± 0. 2 Thermal compound resistance < 0.05 °C/W / 0.025 mm Screws and bolts supplied. Maximum tightening torque: 200 Ncm, mechanical mounting 200 Ncm, electrical connections Revision: 14-Jun-16 Document Number: 32509 3 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 RCEC 750 www.vishay.com Vishay MCB COOLING The temperature of the heatsink may be maintained at the specified values with: • Forced air ventilation • Internal circulation of a liquid cooling • Heatsink contact surface: Ra 6.3 μm • Evenness defect: 0.05 mm max. • Surface temperature gradient (isotherm): 20 °C max. • Thermal compound not supplied (resistance < 0.05 °C/W / 0.025 mm) The user must select the thermal resistance of the heatsink according to the power applied. TERMINAL OPTIONS • Electrical terminals M5 • Other terminal size • Output cable ORDERING INFORMATION RCEC 750 HV 100K 5% XXX BO15 MODEL STYLE TERMINALS RESISTANCE VALUE TOLERANCE CUSTOM DESIGN PACKAGING ±5% ± 10 % Other on request Optional On request: special value, tolerance shape, M5 terminals, etc. GLOBAL PART NUMBER INFORMATION R C E C 7 5 0 H 1 V 5 R 2 6 3 0 K B 4 5 6 1 2 3 4 5 6 GLOBAL MODEL TERMINAL OHMIC VALUE TOLERANCE PACKAGING INDUSTRIALIZATION NUMBER RCEC 750 (if applicable) Standard (no digit) = dielectric strength 7 kV + partial discharge HV = dielectric strength 12 kV + partial discharge The first three digits are significant figures and the last specifies the number of zeros to follow, R designates decimal point. 4702 = 47 k 1000 = 100 47R0 = 47 4R70 = 4.7 J=5% K = 10 % B = box (24 pcs for standard, 15 pcs for HV) 3 specific digits (if applicable) EXAMPLES MODEL DESCRIPTION PART NUMBER RCEC 750 RCEC 750 220K 10 % BO24 RCEC7502203KB RCEC 750 HV RCEC 750 HV 100U 5 % 310 BO15 RCEC750HV1000JB310 Revision: 14-Jun-16 Document Number: 32509 4 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. 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