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 % Ω 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: [email protected] 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 Ω 562R = 562 Ω 10K = 10 kΩ 1M = 1 MΩ ± 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: [email protected] 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: [email protected] 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 Ω to 10 MΩ 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 Ω) 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 Ω) 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 Ω) (40 ± 2) °C; 56 days; (93 ± 3) % RH ± (1 % R + 0.05 Ω) 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 × R)1/2 U = Umax.; whichever is less severe ± (1 % R + 0.05 Ω) Endurance at 70 °C (4.25.1) U = (P70 × 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 Ω) Extended endurance (4.25.1.8) Duration extended to 8000 h ± (2 % R + 0.1 Ω) UCT = 125 °C; 1000 h ± (1 % R + 0.05 Ω) 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: [email protected] 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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We confirm that all the products identified as being compliant to IEC 61249-2-21 conform to JEDEC JS709A standards. Revision: 02-Oct-12 1 Document Number: 91000