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ACAS06121K1B220RATP5 Datasheet(PDF) 3 Page - Vishay Siliconix |
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ACAS06121K1B220RATP5 Datasheet(HTML) 3 Page - Vishay Siliconix |
3 / 6 page www.vishay.com For technical questions, contact: filmresistors.thinfilmarray@vishay.com Document Number: 28770 278 Revision: 11-Sep-08 ACAS 0612 AT - Precision Automotive Vishay Beyschlag Automotive Precision Thin Film Chip Resistor Array PATTERN STYLES FOR CHIP RESISTOR ARRAYS Note (1) In applications with defined resistance ratios like voltage dividers or feedback circuits, an array with a defined tracking of e.g. 10 ppm/K is required to replace discrete resistors with a temperature coefficient of ± 5 ppm/K. Furthermore, in order to achieve the same tolerance of ± 0.05 % of individual resistors, an array requires a matching of 0.1 %. APPLICATION INFORMATION DESCRIPTION The production of the components is strictly controlled and follows an extensive set of instructions established for reproducibility. A homogeneous film of metal alloy is deposited on a high grade (96 % Al2O3) ceramic substrate and conditioned to achieve the desired temperature coefficient. Specially designed inner contacts are realised on both sides. A special laser is used to achieve the target value by smoothly cutting a meander groove in the resistive layer without damaging the ceramics. The resistor elements are covered by a protective coating designed for electrical, mechanical and climatic protection. The terminations receive a final pure tin on nickel plating. The result of the determined production is verified by an extensive testing procedure and optical inspection performed on 100 % of the individual chip resistors. Only accepted products are laid directly into the paper tape in accordance with IEC 60286-3*. ASSEMBLY The resistors are suitable for processing on automatic SMD assembly systems. They are suitable for automatic soldering using reflow or vapour phase as shown in IEC 61760-1*. The encapsulation is resistant to all cleaning solvents commonly used in the electronics industry, including alcohols, esters and aqueous solutions. The suitability of conformal coatings, if applied, shall be qualified by appropriate means to ensure the long-term stability of the whole system. The resistors are RoHS compliant; the pure tin plating provides compatibility with lead (Pb)-free and lead-containing soldering processes. The permitted storage time is 20 years, whereas the solderability is specified for 2 years after production or requalification. The immunity of the plating against tin whisker growth has been proven under extensive testing. RECOMMENDED SOLDER PAD DIMENSIONS FOR CHIP RESISTOR ARRAYS TYPE G (mm) Y (mm) X (mm) U (mm) Z (mm) I (mm) P (mm) ACAS 0612 AT 0.8 1.15 0.64 0.44 3.1 0.36 0.8 TEMPERATURE COEFFICIENT AND RESISTANCE RANGE DESCRIPTION RESISTANCE VALUE ACCURACY GRADE ABSOLUTE TCR TCR TRACKING (1) ABSOLUTE TOLERANCE TOLERANCE MATCHING (1) ACAS 0612 AT A ± 25 ppm/K 10 ppm/K ± 0.25 % 0.1 % 47 Ω to 150 kΩ B ± 25 ppm/K 10 ppm/K ± 0.5 % 0.25 % 47 Ω to 150 kΩ E ± 25 ppm/K 15 ppm/K ± 0.25 % 0.1 % 47 Ω to 150 kΩ F ± 25 ppm/K 15 ppm/K ± 0.5 % 0.25 % 47 Ω to 150 kΩ J ± 25 ppm/K 25 ppm/K ± 0.25 % 0.1 % 47 Ω to 150 kΩ K ± 25 ppm/K 25 ppm/K ± 0.5 % 0.25 % 47 Ω to 150 kΩ N ± 50 ppm/K 25 ppm/K ± 0.5 % 0.5 % 47 Ω to 150 kΩ P ± 50 ppm/K 50 ppm/K ± 0.5 % 0.5 % 47 Ω to 150 kΩ 0.1 Z G Y UI X limits for solder resistance P Dimensions in mm R1 R2 R3 R4 Circuit Type 03 |
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