RCEC 750 www.vishay.com Vishay MCB Power Resistors Cooled by Auxiliary Heatsink (Not Supplied) Thick Film Technology FEATURES * System without external radiation * High power / volume ratio * Non-inductive * M4 screw-on outputs (M5 on option) * Easy assembly, self-calibrated pressure (400 N) * Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 LINKS TO ADDITIONAL RESOURCES 3D 3D 3D Models STANDARD ELECTRICAL SPECIFICATIONS MODEL TOLERANCE % TEMPERATURE COEFFICIENT ppm/C E-SERIES OHMIC VALUES (3) 800 10, 5 700 (typical) E24 800 10, 5 (1) 300 (typical) E24 800 10, 5 (1) 100 (typical) E24 RESISTANCE RANGE MAX. RATED POWER BC85 C W 0.15 (2) to 0.49 0.5 to 3 3.3 to 1M RCEC 750 Notes (1) 2 % or 1 % on special request for limited resistance value and with reduction of maximum power and pulse rating (contact us for details) (2) Current limitation for 0.15 : 30 A RMS max. (3) Other on request MECHANICAL SPECIFICATIONS UL 94 flame classifications Material complies with the standard UL 94 V-0 Resistive element Cermet Substrate Alumina Encapsulation Resin filled in case TECHNICAL SPECIFICATIONS PARAMETER 750 Operating temperature range 750HV -55 C to +155 C Maximum operating voltage between terminals Dielectric strength VRMS (50 Hz / 1 min) 5000 VDC 7000 V (other case contact us) 12 000 V (other case contact us) Creeping distance > 42 mm > 75 mm Clearance distance > 12 mm CTI index Partial discharge > 30 mm > 600 < 10 pC at 5000 Veff ( 10 pC at 7000 Veff on request) Other cases: contact us Capacitance / ground (frequency 10 kHz) 120 pF (typical) Self-inductance (frequency 10 kHz) < 40 nH (typical) Insulation resistance Weight Revision: 24-Apr-2020 > 100 G at 1000 VDC 120 g (maximum) Document Number: 32509 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 RCEC 750 www.vishay.com Vishay MCB DIMENSIONS in millimeters STANDARD HV 24.8 0.5 39.8 0.5 O8 14.3 60 0.3 24 60 36 34 57 0.2 67 (2 x) M4 useful depth 7 24 PERFORMANCES TESTS Damp heat Climatic sequence Rapid change of temperature Shock Revision: 24-Apr-2020 CONDITIONS REQUIREMENTS TYPICAL VALUES 56 days, 40 C, 93 % RH (IEC 60068-2-78) (1 % + 0.05 ) Insul. > 103 M < 0.2 % Low temperature: -55 C High temperature 150 C Number of cycles: 21 Exposure time: 3 hours for high temperature and 2 hours for low temperature (IEC 60068-2-14 Nb) (1 % + 0.05 ) < 0.2 % Low temperature: -55 C High temperature: 125 C Number of cycles: 5 Exposure time: 30 min Manual transition time: 2 min. (IEC 60068-2-14 Na) (0.25 % + 0.05 ) < 0.1 % Shock type: half-sine Amplitude: 100 m/s2 Duration: 6 ms Frequency: 1 bump per second Number of bumps: 3000 Directions tested: 6 (500 bumps in each direction) (IEC 600068-2-29 test Eb) (0.25 % + 0.05 ) < 0.2 % Document Number: 32509 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 RCEC 750 www.vishay.com Vishay MCB PERFORMANCES TESTS Vibrations CONDITIONS REQUIREMENTS TYPICAL VALUES Random frequency range: from 10 Hz to 200 Hz / ASD: 0.0104 g2/Hz from 200 Hz to 500 Hz / ASD: 0.00312 g2/Hz Overall acceleration level: 1.87 GRMS Axis tested: 3 (X, Y, and Z) / 150 min per axis (IEC 60068-2-64) (0.25% + 0.05 ) < 0.2 % 2 Nm / 200 N (1 % + 0.05 ) < 0.1 % 1000 h Pn 90 min on / 30 min off with bottom case = 85 C (IEC 60115-1) (1 % + 0.05 ) < 0.5 % Terminal strength Endurance Note (1) All tests were done in Vishay MCB laboratory conditions ENERGY R 390 R > 390 Repetitive operation = 8 J Pulse = 50 s Repetitive operation = 4 J Pulse = 50 s Accidental operation = 20 J Pulse = 50 s 120 pulses Other values: consult us DISSIPATION OVERLOAD Axis Title Axis Title 10000 900 10000 2500 800 2000 700 1000 400 1500 1st line 2nd line 500 2nd line Power (W) 1000 1st line 2nd line 2nd line Power (W) 600 1000 100 300 200 100 500 100 P = f (t) P = f (T) 10 0 0 25 50 75 100 125 150 175 0 1 10 100 10 1000 Temperature (C) Time (s) Permanent Applicable Power (W) as a Function of Bottom Case Temperature (C) Intermittent Overload (Exceptional Operation) Bottom Case Temperature +85 C Revision: 24-Apr-2020 Document Number: 32509 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 RCEC 750 www.vishay.com Vishay MCB ASSEMBLY 57 0 .2 M4 min. depth 10 Thermal compound see note below Tightening torque for mechanical fixation 1.8 Nm to 2 Nm Tightening torque for electrical connections 1.8 Nm to 2 Nm COOLING The temperature of the heatsink may be maintained at the specified values with: * Forced air ventilation or internal circulation of a liquid cooling * Heatsink contact surface: < Ra 6.3 * Evenness defect: 0.05 mm max. * Surface temperature gradient (isotherm): 20 C max. * Thermal compound not supplied (resistance < 0.025 C/W / 0.05 mm preconized) * Mounting recommendation: www.vishay.com/doc?32558 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. Revision: 24-Apr-2020 Document Number: 32509 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 RCEC 750 www.vishay.com Vishay MCB 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) Revision: 24-Apr-2020 Document Number: 32509 5 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. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special, consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular purpose, non-infringement and merchantability. Statements regarding the suitability of products for certain types of applications are based on Vishay's knowledge of typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements about the suitability of products for a particular application. It is the customer's responsibility to validate that a particular product with the properties described in the product specification is suitable for use in a particular application. Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over time. All operating parameters, including typical parameters, must be validated for each customer application by the customer's technical experts. Product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited to the warranty expressed therein. Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining applications or for any other application in which the failure of the Vishay product could result in personal injury or death. Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. 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. (c) 2021 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED Revision: 01-Jan-2021 1 Document Number: 91000