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 % after 1000 h * Conformal vitreous enamel * All welded construction * Low ohmic values 0.1 available * Termination: Sn/Ag/Cu As a result of more than 50 years of experience and continuous improvements the RWM Series of resistors features proven reliability in AC or DC applications. * Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 The high quality of the RWM resides mainly in the use of a proprietary Vishay Sfernice enamel fired at high temperature and free from any compound liable to corrode the resistive wire. The performance of this series of professional resistors fully meets the requirements of the following specifications: - NF C 83-210-001 - CECC 40201-001 - BS - CECC 40201-002 DIMENSIONS in millimeters 25 min A 25 min. OB RWM 4 x 10 RWM 4 x 22 A 12 1 22.1 1 24.7 1 18 1 24.7 1 33.7 1 33.7 1 45.8 2 45.8 2 63.8 1 63.8 1 OB 5.5 1 5.5 1 7.4 1.5 6.5 1 7.4 1.5 7.4 1.5 7.4 1.5 9.4 1.5 9.4 1.5 9.4 1.5 9.4 1.5 1 2 3 2.2 3 4 4 8 8 14 14 Weight in g RWM 5 x 26 RWM 6 x 22 RWM 8 x 26 O 0.8 0.1 RWM 6 x 34 RWM 8 x 34 RWM 8 x 45 RWM 10 x 45 RWM 10 x 64 RWM 10 x 65 STANDARD ELECTRICAL SPECIFICATIONS MODEL SIZE RESISTANCE RANGE RATED POWER P25 C W LIMITING ELEMENT VOLTAGE V TOLERANCE % RWM 4 x 10 0410 0.1 to 10K 3 120 1, 2, 5 RWM 4 x 22 0422 0.1 to 16K 5 300 1, 2, 5 RWM 5 x 26 0526 0.1 to 27K 7 350 1, 2, 5 RWM 6 x 22 0622 0.1 to 39K 7 350 1, 2, 5 RWM 8 x 26 0826 0.1 to 27K 8 500 1, 2, 5 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: 13-Oct-18 Document Number: 50008 1 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 STYLE RWM 4 x 10 RWM 4 x 22 at +70 C 2.6 W 4.5 W 6W 6W at +25 C 3W 5W 7W 7W 5.5 W 7W 10 W 10 W Ohmic Range in Relation to Tolerance 5 % E24 Series 0.1 10 k 0.1 16 k 0.1 27 k Qualified Ohmic Range NF C 83-210 0.1 10 k 0.1 6.8 k Limiting Element Voltage 120 V 300 V Critical Resistance 4.8 k - Power Rating With Surface Temp. +450 C RWM 5 x 26 RWM 6 x 22 RWM 6 x 34 RWM 8 x 34 RWM 8 x 45 7W 7W 9.5 W 9.5 W 8W 8W 11 W 11 W 10 W 12 W 14 W 20 W 0.1 39 k 0.1 27 k 0.33 36 k 0.33 36 k 0.15 10 k 0.15 39 k - 0.33 15 k - 350 V 350 V 500 V 500 V 650 V 650 V - 31 k - 38 k 18.8 k 17.5 k RWM 8 x 26 RWM 10 x 45 RWM 10 x 64 RWM 10 x 65 21 W 21 W 25.8 W 25 W 25 W 30 W 25 W 25 W 30 W 0.47 62 k 0.47 62 k 0.68 100 k 0.68 100 k 0.47 33 k - - - 800 V 800 V 800 V 25.6 k 25.6 k 21.3 k PERFORMANCE CECC 40201 - EN 140-201 TESTS TYPICAL DRIFTS CONDITIONS REQUIREMENTS Short Time Overload 10 Pr during 10 s 25 C ambient (2 % + 0.1 ) (0.5 % + 0.05 ) Temperature Cycling (5 cycles) -55 C +200 C (1 % + 0.05 ) (0.5 % + 0.05 ) 56 days 40 C ambient - R.H. 95 % (5 % + 0.1 ) (0.5 % + 0.05 ) Tensile test: 20 N 2 successive bending 2 full rotations of 180 (1 % + 0.05 ) (0.1 % + 0.05 ) 1000 h at Pr 90'/30' cycle 25 C ambient (5 % + 0.1 ) (1.5 % + 0.05 ) Humidity (Steady State) Terminal Strength Load Life OVERLOAD Heavy overloads can be endured in the form of short pulses < 0.1 s. Particular requirements should be submitted to Vishay Sfernice, specifying peak voltage, cycle and environmental conditions. RECOMMENDATIONS FOR USE Since these components are high dissipation power resistors, customers are advised to use a high melting point solder. For low ohmic values, the measurement becomes critical and the connecting wires resistance is to be included. The value is measured at 5 mm from the resistor body. Group Mounting In a still atmosphere, a distance between axes equal to five times the resistor's diameter is recommended. Cabinet Mounting * Unventilated box: Dissipation should be reduced (see dimensional drawing). * Forced ventilation: If conditions are appropriate, dissipation may be doubled or even trebled. * In any case: The surface temperature at the hottest point should not exceed 450 C. These aspects should be considered by the end user. ELECTRICAL SPECIFICATIONS Tolerance Temperature Coefficient Dielectric Withstanding Voltage NF EN140000 Inductance Revison: 13-Oct-18 Standard On request 5 % (NI 10 %) 1 % and 2 % (NI 5 %) +75 ppm/C typical 500 VRMS - 1 min - 10 mA Non inductive (Ayrton-Perry) winding available Document Number: 50008 2 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 75 50 25 45 x 10 64 x 10 65 200 100 0 350 300 200 100 25 45 10 x 300 0 0 10 4x 26 22 -6 x2 2 8x 26 6x 8 34 x 34 400 x 5x RATED POWER IN % 100 8 4x HOT SPOT TEMPERATURE IN C 500 116 Optional 0 2 4 6 AMBIENT TEMPERATURE IN C 8 10 12 14 16 18 20 22 24 26 28 30 RATED POWER IN W MARKING Vishay Sfernice trademark, model and style, if applicable (except for the smallest model due to lack of space: (4 x 10 or RB 59), ohmic value, resistance tolerance, manufacturing date (year - month). ORDERING INFORMATION RWM 4 x 10 MODEL STYLE XXX 1U2 5% AM500 e1 NI OPTIONAL SPECIAL DESIGN OHMIC VALUE TOLERANCE PACKAGING LEAD (Pb)-FREE Non Inductive Winding Method N Optional Custom items are subject to extra charge and minimum order. Please see price list. GLOBAL PART NUMBER INFORMATION R W M GLOBAL MODEL RWM 0 SIZE d x L: 0410 0422 0526 0622 0826 0634 0834 0845 1045 1064 1065 4 1 OPTION 0 1 R OHMIC VALUE The first three digits are significant figures and the last digit specifies the or number of zeros to follow. R designates decimal point. N 48R7 = 48.7 1R20 = 1.2 (non inductive 1002 = 10 000 winding) R330 = 0.33 ... Blank 2 0 J R 1 5 E LEAD (Pb)-FREE TOLERANCE PACKAGING SPECIAL F=1% G=2% J=5% K = 10 % Size 0410, 0422, 0526, 0826, 0622: R15 = Reel (1000 pieces) As applicable. Ex: AD7 1 Sn(99), Ag(0.3), Cu(0.7): E1 Size 0845, 1045, 1064, 1065: B25 = box (50 pieces) Size 0634: S09 = bag (50 pieces) Other packaging existing. Revison: 13-Oct-18 Document Number: 50008 3 For technical questions, contact: sferfixedresistors@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. 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