WK2, WR4, WR5, WK8 www.vishay.com Vishay Draloric High Pulse Load, High Power Metal Oxide Leaded Resistors FEATURES * High power pulse withstanding capability (up to 1 kW) * High power dissipation in small size (1 W / 0207 size to 4 W / 0922 size) * WK2 and WR4 are AEC-Q200 qualified * High temperature (up to 200 C), heat resistant encapsulation * Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 APPLICATIONS * Automotive electronics * Industrial electronics * Power supplies TECHNICAL SPECIFICATIONS DESCRIPTION WK2 WR4 WR5 WK8 Imperial size 0207 0414 0617 0922 0.22 to 1 M 0.33 to 1 M 0.22 to 560 k 0.22 to 100 k 1 %, 2 %, 5 % 2 %, 5 % 2 %, 5 % 2 %, 5 % 50 ppm/K, 100 ppm/K, 200 ppm/K 200 ppm/K 200 ppm/K 200 ppm/K 1W 2W 3W 4W 500 V 500 V 750 V 750 V 70 K/W 60 K/W (5 % R + 0.1 ) (2 % R + 0.1 ) Resistance range Resistance tolerance Temperature coefficient Rated dissipation, P70 Operating voltage, Umax. AC/DC (1) Operating temperature range (2) -55 C to +200 C 140 K/W Thermal resistance (Rth) 100 K/W Insulation voltage: > 500 V 1 min; Uins < 1 x 10-8/h Failure rate Max. resistance change for resistance range, R max., after: load (1000 h, P70) (5 % R + 0.1 ) (5 % R + 0.1 ) Notes (1) Rated voltage P x R . (2) For values < 10 the upper limiting temperature is 155 C. The power rating is correspondingly lower and can be calculated by R . th E.g. for WK8 - Rth is 60 K/W; to calculate power P for < 10R; Tambient = 25 C P = TUpper Limiting - TAmbiant/Rth = (155 - 25) / 60 = 2.16 W AUTOMOTIVE QUALIFICATION DESCRIPTION Qualifications Revision: 03-Mar-16 WK2 WR4 WR5 WK8 AEC-Q200 AEC-Q200 - - Document Number: 20128 1 For technical questions, contact: filmresistorsleaded@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 WK2, WR4, WR5, WK8 www.vishay.com Vishay Draloric TEMPERATURE COEFFICIENT AND RESISTANCE RANGE TYPE / SIZE TCR 50 ppm/K 100 ppm/K 100 ppm/K 200 ppm/K 200 ppm/K 200 ppm/K 200 ppm/K 200 ppm/K 200 ppm/K 200 ppm/K WK2 WR4 WR5 WK8 TOLERANCE 1% 2% 5% 5% 2% 5% 2% 5% 2% 5% RESISTANCE 4.7 to 1 M 4.7 to 1 M 4.7 to 1 M 0.22 to 1 M 1 to 1 M 0.33 to 1 M 1 to 100 k 0.22 to 560 k 1 to 68 k 0.22 to 100 k E-SERIES E24; E96 E24; E48 E24 E24 E24; E96 E24 E24; E96 E24 E24; E48 E24 PART NUMBER AND PRODUCT DESCRIPTION Part Number: WK202070C1001FD500 W K 2 0 2 0 7 0 C 1 0 0 1 F D 5 0 0 TYPE / SIZE VARIANT TCR RESISTANCE TOLERANCE (1) PACKAGING SPECIAL WK2 = WK20207 WR4 = WR40414 WR5 = WR50617 WK8 = WK80922 0 = neutral 0 = standard (for WK8 only) C = 50 ppm/K B = 100 ppm/K A = 200 ppm/K 3 digit value 1 digit multiplier MULTIPLIER 7 = *10-3 8 = *10-2 9 = *10-1 0 = *100 1 = *101 2 = *102 3 = *103 4 = *104 5 = *105 6 = *106 F=1% G=2% J=5% 22 = A2 25 = A5 D5 = R5 5C = AC G1 = R1 41 = A1 G73 51 = A1 G77 FE = RE G73 GP = RP 00 = standard Product Description: WK2 50 1K0 1 % R5 WK2 50 1K0 1% R5 TYPE / SIZE TCR RESISTANCE VALUE TOLERANCE PACKAGING WK2 WR4 WR5 WK8 50 ppm/K 100 ppm/K 200 ppm/K 49K9 = 49.9 k 50R1 = 50.1 1K0 = 1.0 k 1% 2% 5% A2 A5 R5 AC R1 41 51 FE GP Note (1) See temperature coefficient and resistance range table for selecting correct TCR and tolerance combination. PACKAGING TYPE / SIZE WK2 CODE A2 A5 QUANTITY 2000 5000 R5 5000 A1 1000 RE 2500 A1 1000 WR4 WR5 RP AC WK8 R1 Revision: 03-Mar-16 1500 500 1000 PACKAGING STYLE Taped acc. to IEC 60286-1 fan-folded in a box Taped acc. to IEC 60286-1 on a reel Taped acc. to IEC 60286-1 fan-folded in a box Taped acc.to IEC 60286-1 on a reel Taped acc. to IEC 60286-1 fan-folded in a box Taped acc. to IEC 60286-1 on a reel Taped acc. to IEC 60286-1 fan-folded in a box Taped acc.to IEC 60286-1 on a reel WIDTH 53 mm 73 mm PITCH 5 mm 5 mm DIMENSION 72 mm x 55 mm x 258 mm 75 mm x 114 mm x 260 mm 5 mm 93 mm x 300 mm x 298 mm 5 mm 95 mm x 57 mm x 260 mm 5 mm 105 mm x 315 mm x 305 mm 155 mm x 110 mm x 410 mm 77 mm 10 mm 119 mm x 353 mm x 353 mm 120 mm x 118 mm x 412 mm 77 mm 10 mm 119 mm x 353 mm x 353 mm Document Number: 20128 2 For technical questions, contact: filmresistorsleaded@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 WK2, WR4, WR5, WK8 www.vishay.com Vishay Draloric DESCRIPTION ASSEMBLY Production is strictly controlled and follows an extensive set of instructions established for reproducibility. A homogeneous film of metal oxide is deposited on a high grade ceramic body and conditioned to achieve the desired temperature coefficient. Plated steel termination caps are firmly pressed on the metallized rods. Mostly, a special laser is used to achieve the target value by smoothly cutting a helical groove in the resistive layer without damaging the ceramics. Connecting wires of electrolytic copper plated with 100 % tin are welded to the termination caps. The resistor elements are covered by a green protective coating designed for electrical, mechanical and climatic protection. Four or five color code rings designate the resistance value and tolerance in accordance with IEC 60062 (1). WK2 and WR4 are color coded while WR5 and WK8 are print marked. The result of the determined production is verified by an extensive testing procedure performed on 100 % of the individual resistors. Only accepted products are stuck directly on the adhesive tapes in accordance with IEC 60286-1 (1). The resistors are suitable for processing on automatic insertion equipment and cutting and bending machines. Excellent solderability is proven, even after extended storage. They are suitable for automatic soldering using wave or dipping. The resistors are completely lead (Pb)-free, the pure tin plating provides compatibility with lead (Pb)-free and lead-containing soldering processes. The immunity of the plating against tin whisker growth, in compliance with IEC 60068-2-82, has been proven under extensive testing. The encapsulation is resistant to cleaning solvent (3) specified in IEC 60115-1. The suitability of conformal coatings, potting compounds and their processes, if applied, shall be qualified by appropriate means to ensure the long-term stability of the whole system MATERIALS Vishay acknowledges the following systems for the regulation of hazardous substances: * IEC 62474, Material Declaration for Products of and for the Electrotechnical Industry, with the list of declarable substances given therein * The Global Automotive Declarable Substance List (GADSL) (2) * The REACH regulation (1907/2006/EC) and the related list of substances with very high concern (SVHC) for its supply chain The products do not contain any of the banned substances as per IEC 62474, GADSL, or the SVHC list, see www.vishay.com/how/leadfree. Hence the products fully comply with the following directives: * 2000/53/EC End-of-Life Vehicle Directive (ELV) and Annex II (ELV II) * 2011/65/EU Restriction of the Use of Hazardous Substances Directive (RoHS) with amendment 2015/863/EU * 2012/19/EU Waste Electrical and Electronic Equipment Directive (WEEE) Vishay pursues the elimination of conflict minerals from its supply chain, see the Conflict Minerals Policy at www.vishay.com/doc?49037. APPROVALS WK2 and WR4 are AEC-Q200 qualified which makes these products ideal to be used in automotive applications. RELATED PRODUCTS For a correlated range of Power Metal Film Resistors with small size-high rated dissipation see the PR series datasheet: www.vishay.com/doc?28729. Notes (1) The quoted IEC standards are also released as EN standards with the same number and identical contents. (2) Global Automotive Declarable Substance List, see www.gadsl.org. All products comply with the IEC 62474, Material Declaration for Products of and for the Electrotechnical Industry. CEFIC (European Chemical Industry Council), EECA (European Electronic Component Manufacturers Association), EICTA (European trade organization representing the information and communications technology and consumer electronics), see www.digitaleurope.org/SearchResults.aspx?Search=eicta. (3) Other cleaning solvents with aggressive chemicals should be evaluated in actual cleaning process for their suitability. Revision: 03-Mar-16 Document Number: 20128 3 For technical questions, contact: filmresistorsleaded@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 WK2, WR4, WR5, WK8 www.vishay.com Vishay Draloric Rated Power in % FUNCTIONAL PERFORMANCE 120 100 80 WK2 WR4 WR5 WK8 60 40 20 0 -55 50 70 0 100 150 200 300 360 Ambient Temperature in C Derating Temperature Rise in C 250 300 WK8 250 WR5 WR4 200 WK2 150 100 50 0 0 2.0 1.0 3.0 4.0 Power in W Power Rating P in W Temperature Rise 103 10 2 WK8 WR5 WR4 WK2 101 100 Secondary Conditions: a) Pulse rating P 0 b) u 70 C 10-1 -5 10 Single Pulse Revision: 03-Mar-16 5.0 10-4 10-3 10-2 10-1 100 10 Square Pulse ti in s Document Number: 20128 4 For technical questions, contact: filmresistorsleaded@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 WK2, WR4, WR5, WK8 Power Rating P in W www.vishay.com Vishay Draloric 103 WK8 WR5 102 WR4 WK2 101 100 Secondary Conditions: a) P P70 (permissible constant power at u = 70 C) b) u 70 C 10-1 -5 10 10-4 10-3 10-2 10-1 100 Pulse Voltage Umax. in V Continuous Pulse Secondary Conditions: a) u 70 C 2000 WR5 / WK8 WR4 WK2 1000 0 -5 10 10-4 10-3 10-2 10-1 100 10 Square Pulse ti in s Max. Pulse Voltage Non-Linearity A3 in dB 10 Square Pulse ti in s 130 120 WR4 110 WR5 / WK8 100 90 1K Non-Linearity Revision: 03-Mar-16 10K 100K 1M 10M Resistance Value in Document Number: 20128 5 For technical questions, contact: filmresistorsleaded@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 WK2, WR4, WR5, WK8 Current Noise in V/V www.vishay.com 10 1 WR5 / WK8 WR4 0.1 0.01 10K Current Noise Revision: 03-Mar-16 Vishay Draloric 100K 1M 10M Resistance Value in Document Number: 20128 6 For technical questions, contact: filmresistorsleaded@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 WK2, WR4, WR5, WK8 www.vishay.com Vishay Draloric TESTS PROCEDURES AND REQUIREMENTS All tests are carried out in accordance with the following specifications: * EN 60115-1, generic specification (includes tests) The test and requirements table contains only the most important tests. For the full test schedule refer to the documents listed above. The tests are carried out in accordance with IEC 60068-2-xx test method and under standard atmospheric conditions in accordance with IEC 60068-1, 5.3. Climatic category -40 / 200 / 56 (rated temperature range: lower category temperature, upper category temperature; damp heat, steady state, test duration: 56 days) is valid. Unless otherwise specified the following values apply: * Temperature: 15 C to 35 C * Relative humidity: 45 % to 75 % * Air pressure: 86 kPa to 106 kPa (860 mbar to 1060 mbar). For performing some of the tests, the components are mounted on a test board in accordance with IEC 60115-1, 4.31. In the Test Procedures and Requirements table, only the tests and requirements are listed with reference to the relevant clauses of IEC 60115-1 and IEC 60068-2-xx test methods. A short description of the test procedure is also given. TEST PROCEDURES AND REQUIREMENTS IEC 60068-2 TEST METHOD TEST PROCEDURE REQUIREMENTS PERMISSIBLE CHANGE (Rmax.) 4.13 - Short time overload Room temperature; P = 6.25 x Pn; (voltage not more than 2 x limiting voltage); 5s (0.25 % R + 0.05 ) 4.16 21 (Ua1) 21 (Ub) 21 (Uc) Robustness of terminations Tensile, bending, and torsion No damage (0.25 % R + 0.05 ) 4.18 20 (Tb) Resistance to soldering heat Unmounted components (260 5) C; (10 1) s (0.25 % R + 0.05 ) 4.19 14 (Na) Rapid change of temperature 30 min at -55 C and 30 min at +155 C; 5 cycles (0.25 % R + 0.05 ) 4.20 29 (Eb) Bump 3 x 1500 bumps in three directions; 40 g No damage (0.25 % R + 0.05 ) Vibration Frequency 10 Hz to 500 Hz; displacement 1.5 mm or acceleration 10 g; 3 directions; total 6 h (3 x 2 h) No damage (0.25 % R + 0.05 ) IEC 60115-1 CLAUSE 4.22 6 (Fc) 4.23 4.23.2 Climatic sequence: 2 (Ba) Dry heat 16 h; 155 C 4.23.3 30 (Db) Damp heat, cyclic 24 h; 55 C 90 % to 100 % RH; 1 cycle 4.23.4 1 (Aa) 1st cycle, cold 2 h; -55 C 4.23.5 13 (M) Low air pressure 2 h; 8.5 kPa 15 C to 35 C 4.23.6 30 (Db) Damp heat, remaining cyclic 5 days; 55 C 95 % to 100 % RH; 5 cycles 4.23.7 30 (Db) DC load apply rated power for 1 min 4.24 78 (Cab) Damp heat (steady state) 56 days; 40 C; 90 % to 95 % RH; loaded with 0.01 P70 (steps: 0 V to 100 V) - Endurance (at 70 C) 1000 h; loaded with P70 or Umax.; 1.5 h ON and 0.5 h OFF 4.25.1 4.25.3 Revision: 03-Mar-16 - Endurance at 200 C 1000 h; without load Rins min.: 1 G (0.5 % R + 0.1 ) (1.5 % R + 0.1 ) WK2, WR4, WR5 (5 % R + 0.1 ) WK8 (2 % R + 0.1 ) WK2, WR4 (5 % R + 0.1 ) WR5, WK8 (1 % R + 0.1 ) Document Number: 20128 7 For technical questions, contact: filmresistorsleaded@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 WK2, WR4, WR5, WK8 www.vishay.com Vishay Draloric DIMENSIONS 6 mm (1) L1 L D d e DIMENSIONS - Leaded resistor types, mass and relevant physical dimensions TYPE DMAX. (mm) L MAX. (mm) L1 MAX. (mm) d (mm) e (2) (mm) MASS (g) WK2 2.5 6.5 8.0 0.58 0.05 7.5 0.2 WR4 3.9 10.0 12.0 0.78 0.05 15.0 0.7 WR5 6.0 16.5 20 0.78 0.05 17.5 1.5 WK8 9.0 20.0 24.0 0.78 0.05 22.5 3.5 Notes (1) 9 mm for WR5/WK8. (2) "e" depicts recommended pitch for mounting the resistor. Revision: 03-Mar-16 Document Number: 20128 8 For technical questions, contact: filmresistorsleaded@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. 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