RWM www.vishay.com Vishay Sfernice Enamelled Wirewound Power Resistors Axial Leads FEATURES • High dissipation up to 30 W (25 °C) • Fire proof • Excellent endurance typical drift ± 1.5 % afte r 1000 h • Conformal vitreous enamel • All welded construction • Low ohmic values 0.33 Ω available • Termination: Sn/Ag/Cu As a result of more than 50 years of experience an d • Material categorization: for definitions of complianc e continuous improvements the RWM series of resistor s please see www.vishay.com/doc?99912 features proven reliability in AC or DC applications. The performance of this series of professional resistors fully The high quality of the RWM resides mainly in the use of a meets the requirements of the following specifications: proprietary Vishay Sfernice enamel fired at high temperature - NF C 83-210-001 and free from any compound liable to corrode the resistive - CECC 40201-001 wire. - BS - CECC 40201-002 DIMENSIONS in millimeters 25 min. A 25 min. Ø B Ø 0.8 ± 0.1 RWM RWM RWM RWM RWM RWM 6 x 34 8 x 34 8 x 45 10 x 45 10 x 64 10 x 65 A 33.7 ± 1 33.7 ± 1 45.8 ± 2 45.8 ± 2 63.8 ± 1 63.8 ± 1 Ø B 7.4 ± 1.5 7.4 ± 1.5 9.4 ± 1.5 9.4 ± 1.5 9.4 ± 1.5 9.4 ± 1.5 Weight in g 4 4 8 8 14 14 STANDARD ELECTRICAL SPECIFICATIONS RESISTANCE RATED POWER LIMITING ELEMENT MODEL SIZE RANGE P VOLTAGE TOLERANCE Ω 2W5 °C V ± % RWM 6 x 34 0634 0.33 to 36K 8 500 1, 2, 5 RWM 8 x 34 0834 0.33 to 36K 11 650 1, 2, 5 RWM 8 x 45 0845 0.47 to 62K 11 650 1, 2, 5 RWM 10 x 45 1045 0.47 to 62K 25 800 1, 2, 5 RWM 10 x 64 1064 0.68 to 100K 25 800 1, 2, 5 RWM 10 x 65 1065 0.68 to 100K 30 800 1, 2, 5 Revison: 08-Jul-2020 1 Document Number: 50008 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

RWM www.vishay.com Vishay Sfernice TECHNICAL SPECIFICATIONS VISHAY SFERNICE SERIES AND RWM RWM RWM RWM RWM RWM STYLE 6 x 34 8 x 34 8 x 45 10 x 45 10 x 64 10 x 65 at +70 °C 7 W 9.5 W 9.5 W 21 W 21 W 25.8 W at +25 °C 8 W 11 W 11 W 25 W 25 W 30 W Power Rating With Surface Temp. ≤ +450 °C 12 W 14 W 20 W 25 W 25 W 30 W Ohmic Range in Relation to Tolerance 0.33 Ω 0.33 Ω 0.47 Ω 0.47 Ω 0.68 Ω 0.68 Ω ± 5 % E24 Series 36 kΩ 36 kΩ 62 kΩ 62 kΩ 100 kΩ 100 kΩ Qualified Ohmic Range 0.33 Ω 0.47 Ω NF C 83-210 15 kΩ - 33 kΩ - - - Limiting Element Voltage 500 V 650 V 650 V 800 V 800 V 800 V Critical Resistance 31 kΩ - 38 kΩ 25.6 kΩ 25.6 kΩ 21.3 kΩ PERFORMANCE CECC 40201 - EN 140-201 TYPICAL DRIFTS TESTS CONDITIONS REQUIREMENTS Short Time Overload 10 Pr during 10 s ± (2 % + 0.1 Ω) ± (0.5 % + 0.05 Ω) 25 °C ambient Temperature Cycling -55 °C +200 °C ± (1 % + 0.05 Ω) ± (0.5 % + 0.05 Ω) (5 cycles) Humidity (Steady State) 56 days ± (5 % + 0.1 Ω) ± (0.5 % + 0.05 Ω) 40 °C ambient - R.H. 95 % Tensile test: 20 N Terminal Strength 2 successive bending ± (1 % + 0.05 Ω) ± (0.1 % + 0.05 Ω) 2 full rotations of 180° 1000 h at P r Load Life 90’/30’ cycle ± (5 % + 0.1 Ω) ± (1.5 % + 0.05 Ω) 25 °C ambient OVERLOAD Group Mounting In a still atmosphere, a distance between axes equal to fiv e Heavy overloads can be endured in the form of short pulse s times the resistor’s diameter is recommended. < 0.1 s. Particular requirements should be submitted to Vishay Sfernice, specifying peak voltage, cycle an d Cabinet Mounting environmental conditions. • Unventilated box: Dissipation should be reduced (see dimensional drawing). RECOMMENDATIONS FOR USE • Forced ventilation: If conditions are appropriate , Since these components are high dissipation powe r dissipation may be doubled or even trebled. resistors, customers are advised to use a high melting poin t • In any case: The surface temperature at the hottest point solder. should not exceed 450 °C. For low ohmic values, the measurement becomes critical These aspects should be considered by the end user. and the connecting wires resistance is to be included. Th e value is measured at 5 mm from the resistor body. ELECTRICAL SPECIFICATIONS Standard ± 5 % (NI ± 10 %) Tolerance On request ± 1 % and ± 2 % (NI ± 5 %) Temperature Coefficient +75 ppm/°C typical Dielectric Withstanding Voltage NF EN140000 500 V - 1 min - 10 mA RMS Inductance Non inductive (Ayrton-Perry) winding available Revison: 08-Jul-2020 2 Document Number: 50008 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

RWM www.vishay.com Vishay Sfernice POWER RATING TYPICAL TEMPERATURE RISE 500 % 110106 E IN °C 400 6 x 348 x 34 8 x 45 10 x 45 10 x 160 4x 65 N UR R I 75 AT E R 300 W E O P P M ATED 50 OT TE 200 R P 25 S T 100 O H 0 0 0 25 100 200 300 350 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 AMBIENT TEMPERATURE IN °C RATED POWER IN W MARKING Vishay Sfernice trademark, model and style if applicable, ohmic value, resistance tolerance, manufacturing date (year - month). ORDERING INFORMATION RWM 6 x 34 XXX 1U2 ± 5 % BO50 e1 MODEL STYLE NI OPTIONAL SPECIAL OHMIC VALUE TOLERANCE PACKAGING LEAD DESIGN (Pb)-FREE Non inductive Method N° Custom items winding optional are subject to extra charge and minimum order. Please see price list. GLOBAL PART NUMBER INFORMATION R W M 0 6 3 4 1 R 2 0 J S 0 9 E 1 GLOBAL LEAD SIZE OPTION OHMIC VALUE TOLERANCE PACKAGING SPECIAL MODEL (Pb)-FREE RWM d x L: Blank The first three digits are F = 1 % Size 0845, As Sn(99), 0634 significant figures and the G = 2 % 1045, 1064, applicable. Ag(0.3), 0834 or last digit specifies the J = 5 % 1065: Ex: AD5 Cu(0.7): 0845 number of zeros to follow. K = 10 % B25 = box E1 1045 N R designates decimal point. (50 pieces) 1064 48R7 = 48.7 Ω 1065 (non inductive 1R20 = 1.2 Ω Size 0634: winding) 1002 = 10 000 Ω S09 = bag R330 = 0.33 Ω (50 pieces) ... Revison: 08-Jul-2020 3 Document Number: 50008 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

Legal Disclaimer Notice www.vishay.com Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROV E 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 o r 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-sustainin g 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 documen t or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners. © 2021 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED Revision: 01-Jan-2021 1 Document Number: 91000