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

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