CRCW....-37 e3 Vishay Lead (Pb)-Free Thick Film, Rectangular Chip Resistors FEATURES * High pulse performance (time/power) * Metal glaze on high quality ceramic * Protective overglaze * Lead (Pb)-free solder contacts on Ni barrier layer * Pure tin plating provides compatibility with lead (Pb)-free and lead containing soldering processes STANDARD ELECTRICAL SPECIFICATIONS SIZE MODEL INCH METRIC POWER RATING P70 C W RATED VOLTAGE V CRCW1206-37 1206 3216 0.25 200 CRCW1210-37 1210 3225 0.33 200 CRCW2512-37 2512 6332 1.0 500 TEMPERATURE TOLERANCE RESISTANCE RANGE E-SERIES COEFFICIENT % ppm/K 200 10 5R1 to 10M E24 Notes: * These resistors do not feature a limited lifetime when operated within the permissible limits. However, resistance value drift increasing over operating time may result in exceeding a limit acceptable to the specific application, thereby establishing a functional lifetime * Marking and packaging: see appropriate catalog or web pages * Power rating depends on the max. temperature at the solder point, the component placement density and the substrate material TECHNICAL SPECIFICATIONS PARAMETER UNIT CRCW1206-37 CRCW1210-37 CRCW2512-37 Rated Dissipation at P70 (2) W 0.25 0.33 1.0 Rated Voltage Umax. AC/DC V 200 200 500 Insulation Voltage Uins (1 Min) V Thermal Resistance (1) K/W Category Temperature Range C Weight mg > 300 220 140 65 - 55 to + 155 10 16 40.5 Notes: (1) For size 1206 the measuring conditions are in acc. to EN 140401-802. For all other sizes the result depends on the solder pad dimensions. (2) The power dissipation on the resistor generates a temperature rise against the local ambient, depending on the heat flow support of the printed-circuit board (thermal resistance). The rated dissipation applies only if the permitted film temperature of 155 C is not exceeded. www.vishay.com 1 For technical questions, contact: filmresistors.thickfilmchip@vishay.com Document Number: 20045 Revision: 28-May-08 CRCW....-37 e3 Lead (Pb)-Free Thick Film, Rectangular Chip Resistors Vishay PART NUMBER AND PRODUCT DESCRIPTION PART NUMBER: CRCW120622K0KNEA37 (1) C R C W 1 2 0 6 2 2 K 0 K N E A 3 7 MODEL VALUE TOLERANCE TCR PACKAGING (2) SPECIAL CRCW1206 CRCW1210 CRCW2512 R = Decimal K = Thousand M = Million K = 10 % N = 200 ppm/K EA EB EC EG EH EI EL Up to 2 digits 37 = Non-trimmed ET1 e3 PACKAGING (2) LEAD (Pb)-FREE ET1 ET5 ET6 E67 E82 EG1 E20 e3 = Pure tin termination finish PRODUCT DESCRIPTION: D25/CRCW1206-37 200 22K0 10 % ET1 e3 D25/CRCW1206 200 MODEL TCR CRCW1206 CRCW1210 CRCW2512 22K0 10 % RESISTANCE VALUE TOLERANCE VALUE 10R = 10 562R = 562 10K = 10 k 1M = 1 M 200 ppm/K 10 % Notes: (1) Preferred (2) Please way for ordering products is by use of the PART NUMBER refer to table PACKAGING, see below PACKAGING REEL PACKAGING CODE MODEL CRCW1206-37 CRCW1210-37 CRCW2512-37 Document Number: 20045 Revision: 28-May-08 TAPE WIDTH 8 mm 12 mm 12 mm DIAMETER PITCH PIECES/ REEL PART NUMBER PRODUCT DESC. PAPER BLISTER PAPER BLISTER EI ET1 EG1 180 mm/7" 4 mm 5000 EA 285 mm/11.25" 4 mm 10 000 EB 330 mm/13" 4 mm 20 000 EC 180 mm/7" 4 mm 5000 EA ET1 285 mm/11.25" 4 mm 10 000 EB ET5 330 mm/13" 4 mm 20 000 EC ET6 8 mm 2000 EG E67 4 mm 4000 EH E82 ET5 EL ET6 E20 180 mm/7" For technical questions, contact: filmresistors.thickfilmchip@vishay.com www.vishay.com 2 CRCW....-37 e3 Lead (Pb)-Free Thick Film, Rectangular Chip Resistors Vishay DIMENSIONS SIZE INCH METRIC SOLDER PAD DIMENSIONS [in millimeters] DIMENSIONS [in millimeters] L 3.2 + 0.10 - 0.20 REFLOW SOLDERING WAVE SOLDERING W H T1 T2 a b l a b l 1.6 0.15 0.55 0.05 0.45 0.2 0.4 0.2 0.9 1.7 2.0 1.1 1.7 2.3 1206 3216 1210 3225 3.2 0.2 2.5 0.2 0.55 0.05 0.45 0.2 0.4 0.2 0.9 2.5 2.0 1.1 2.5 2.2 2512 6332 6.3 0.2 3.15 0.15 0.6 0.1 0.6 0.2 0.6 0.2 1.0 3.2 5.2 1.2 3.2 5.2 Pulse Power (W) FUNCTIONAL PERFORMANCE 10 000 1000 100 10 1 10-1 10-2 10-6 10-5 10-4 10-3 10-2 10-1 1 10 100 Pulse Duration (s) Rated Power in % Maximum pulse dissipation as a function of the pulse duration for one.pulse loading of CRCW...-37 resistors 120 100 80 60 40 20 0 - 55 Derating www.vishay.com 3 - 25 0 25 50 75 70 100 125 155 175 Ambient Temperature in C For technical questions, contact: filmresistors.thickfilmchip@vishay.com Document Number: 20045 Revision: 28-May-08 CRCW....-37 e3 Lead (Pb)-Free Thick Film, Rectangular Chip Resistors Vishay TEST PROCEDURES AND REQUIREMENTS EN 60115-1 REQUIREMENTS TEST (clause) CONDITIONS OF TEST STABILITY CLASS 2 OR BETTER Stability for product types: 5.1 to 10 M CRCW....-37 Resistance (4.5) - 10 % 20/- 55/20 C and 20/125/20 C 200 ppm/K U = 2.5 x (P70 x R)1/2 2 x Umax.; Duration: according the style (0.25 % R + 0.05 ) Aging 4 h at 155 C, dryheat solder bath method; 235 C; 2 s visual examination Good tinning ( 95 % covered) no visible damage Resistance to soldering heat (4.18.2) Solder bath method; (260 5) C; (10 1) s (0.25 % R + 0.05 ) Rapid change of temperature (4.19) 30 min at LCT = - 55 C; 30 min at UCT = 125 C; 5 cycles (0.25 % R + 0.05 ) (40 2) C; 56 days; (93 3) % RH (1 % R + 0.05 ) Climatic sequence (4.23) 16 h at UCT = 125 C; 1 cycle at 55 C; 2 h at LCT = - 55 C; 1 h/1 kPa at 15 C to 35 C; 5 cycles at 55 C U = (P70 x R)1/2 U = Umax.; whichever is less severe (1 % R + 0.05 ) Endurance at 70 C (4.25.1) U = (P70 x R)1/2 U = Umax.; whichever is less severe 1.5 h ON; 0.5 h OFF; 70 C; 1000 h (1 % R + 0.05 ) Extended endurance (4.25.1.8) Duration extended to 8000 h (2 % R + 0.1 ) UCT = 125 C; 1000 h (1 % R + 0.05 ) Temperature coefficient (4.8.4.2) Overload (4.13) Solderability (4.17.5) Damp heat, steady state (4.24) Endurance at upper category temperature (4.25.3) APPLICABLE SPECIFICATIONS * EN 60115-1 Generic Specification * EN 140400 Sectional Specification * EN 140401-802 Detail Specification * IEC 60068-2-X Variety of environmental test procedures * IEC 60286-3 Packaging of SMD components Document Number: 20045 Revision: 28-May-08 For technical questions, contact: filmresistors.thickfilmchip@vishay.com www.vishay.com 4 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. 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