285 285 Mildly Activated Rosin Cored Wire Mildly Activated Rosin Cored Wire For Lead-bearing and Lead-free alloys For Lead-bearing and Lead-free alloys Product Description Reliability Properties Copper Mirror Corrosion: Low Kester 285 mildly activated rosin flux is classified Tested to J-STD-004, IPC-TM-650, Method 2.3.32 as Type ROL0 flux under IPC J-STD-004. This flux was formerly classified as Type RMA per Corrosion Test: Low QQ-S-571. Kester 285 consists of high quality, Tested to J-STD-004, IPC-TM-650, Method 2.6.15 purified rosin to which a synergistic combination of activating agents has been incorporated. The Silver Chromate: Pass fluxing ability of 285 is much greater than ordinary Tested to J-STD-004, IPC-TM-650, Method 2.3.33 mildly activated rosin fluxes and is comparable to Chloride and Bromides: None Detected fully activated rosin fluxes. Kester 285 has been Tested to J-STD-004, IPC-TM-650, Method 2.3.35 developed for use in the electronic industry where difficult assemblies are to be soldered, but process Fluorides by Spot Test: Pass requirements stipulate use of a mildly activated Tested to J-STD-004, IPC-TM-650, Method 2.3.35.1 rosin flux. SIR, IPC (typical): Pass Tested to J-STD-004, IPC-TM-650, Method 2.6.3.3 Performance Characteristics: Industry standard RMA cored wire Blank 285 Compatible with leaded and lead-free alloys 10 9 Day 1 1.0 10 W 3.2 10 W Classified as ROL0 per J-STD-004 9 9 Day 4 9.5 10 W 7.7 10 W 9 9 Day 7 8.3 10 W 7.0 10 W RoHS Compliance This product meets the requirements of the RoHS Spread Test (typical): (Restriction of Hazardous Substances) Directive, Tested to J-STD-004, IPC-TM-650, Method 2.4.46 2002/95/EC Article 4 for the stated banned 2 2 Area of Spread mm (in ) substances. (Applies only if this core flux is Flux Core Solder Cu Ni combined with a lead free alloy) 285 Mildly Activated Rosin 335 (0.52) 140 (0.22) 282 Mildly Activated Rosin 240 (0.37) 100 (0.16) 44 Fully Activated Rosin 280 (0.43) 160 (0.25)285 Application Notes Availability: Kester 285 is available in a wide variety of alloys, wire diameters and flux percentages. For most applications, Sn63Pb37 or Sn96.5Ag3.0Cu0.5 is used. Consult the alloy temperature chart in Kesters product catalog for a comprehensive alloy list. The standard wire diameter for most applications is 1.00mm (0.031in). Wire diameters range from 0.25 - 6.00mm (0.010 to 0.250in). AStandard Wire Diameter chart is included in Kesters product catalog. The amount of flux in the wire dictates the ease of soldering for an application. For most applications, core 66 (3.3% flux by weight) is recommended. Other core sizes, 50 and 58, (1.1% and 2.2% respectively) are available. Kester 285 is packaged on spools of different sizes to accommodate a variety of applications. Process Considerations: Solder iron tip temperatures are most commonly between 315-371C (600-700F) for Sn63Pb37 and Sn62Pb36Ag02 alloys and 371-427C (700-800F) for lead-free alloys. Heat both the land area and component lead to be soldered with the iron prior to adding Kester 285 cored wire. Apply the solder wire to the land area or component lead. Do not apply the wire directly to the soldering iron tip. If needed, Kester 186 and 186- 18 Mildly Activated Rosin Flux may be used as a compatible liquid flux to aid in reworking soldered joints. Kester 186 and 186-18 Mildly Activated Rosin Flux are also available in Flux-Pens for optimum board clean- liness. Cleaning: Kester 285 flux residues are non-corrosive, non-conductive and do not require removal in most applications. Storage, Handling, and Shelf Life: Storage must be in a dry, non-corrosive environment. The surface may lose its shine and appear a dull shade of grey. This is a surface phenomena and is not detrimental to product functionality. Flux cored solder wire has a limited shelf life determined by the alloy used in the wire. For alloys containing > 70% lead, the shelf life is two years from date of manufacture. Other alloys have a shelf life of three years from date of manufacture. Health & Safety: This product, during handling or use, may be hazardous to health or the environment. Read the Material Safety Data Sheet and warning label before using this product. World Headquarters: 800 West Thorndale Avenue, Itasca, Illinois, 60143 USA Phone: (+1) 630-616-4000 Email: customerservice kester.com Website: www.kester.com Asia Pacific Headquarters European Headquarters Japanese Headquarters 500 Chai Chee Lane Zum Plom 5 20-11 Yokokawa 2-Chome Singapore 469024 08541 Neuensalz Sumida-Ku (+65) 6449-1133 Germany Tokyo 130-0003 Japan customerservice kester.com.sg (+49) 3741 4233-0 (+81) 3-3624-5351 customerservice kester-eu.com jpsales kester.com.sg The data recommendations presented are based on tests, which we consider reliable. Because Kester has no control over the conditions of use, we disclaim any responsibility connected with the use of any of our products or the information presented. We advise that all chemical products be used only by or under the direction of technically qualified personnel who are aware of the poten- tial hazards involved and the necessity for reasonable care in their handling. The technical information contained herein is consistent with the properties of this material but should not be used in the preparation of specifications as it is intended for reference only. For assistance in preparing specifications, please contact your local Kester office for details. Rev: 26Mar10