24-6040-0066

24-6040-0066 Datasheet

+81 3-3624-5351

Part	Datasheet
24-6040-0066	24-6040-0066 (pdf)

Related Parts	Information
24-7150-0018	24-7150-0018

PDF Datasheet Preview
44 Activated Rosin Cored Wire Product Description Kester 44 Rosin Flux is an activated rosin formula for use in flux-cored solder wire. Kester 44 Rosin Flux has virtually dominated the field of activated rosin core solders for well over four decades. An outstanding performance feature of this flux is the "instant-action" wetting behavior. The high mobility and fast-spreading action of this flux results in more reliable production line soldering. Performance Characteristics • High activity RA formulation • Excellent solderability to a wide variety of metallizations • Industry standard RA cored wire for decades • Classified as ROM1 per J-STD-004 Reliability Properties Copper Mirror Corrosion Moderate Tested to J-STD-004, IPC-TM-650, Method Corrosion Test Moderate Tested to J-STD-004, IPC-TM-650, Method Silver Chromate Fail Tested to J-STD-004, IPC-TM-650, Method Chloride and Bromides: Tested to J-STD-004, IPC-TM-650, Method Fluorides by Spot Test Pass Tested to J-STD-004, IPC-TM-650, Method Application Notes Availability Kester 44 is available in a wide variety of alloys, wire diameters and flux percentages. For most applications, Sn63Pb37. Consult the alloy temperature chart in Kester’s product catalog for a comprehensive alloy list. The standard wire diameter for most applications is 1.00mm 0.031in . Wire diameters range from 0.256.00mm to 0.250in . A "Standard Wire Diameters" chart also is also included in Kester’s product catalog. The amount of flux in the wire dictates the ease of soldering for an application. For most applications, core 66 flux by weight is recommended. Other core sizes, 50 and 58, and respectively are available. Kester 44 is packaged on spools of different sizes to accommodate a variety of applications. Process Considerations Solder iron tip temperatures are most commonly between 315-371°C 600-700°F for Sn63Pb37 and Sn62Pb36Ag02 alloys. Heat both the land area and component lead to be soldered with the iron prior to adding Kester 44 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 Mildly Activated Rosin Flux may be used as a compatible liquid flux to aid in reworking soldered joints. Kester 186 Mildly Activated Rosin Flux is also available in for optimum board cleanliness. Cleaning Kester 44 possesses excellent fluxing ability, the flux residue is non-corrosive and non-conductive under normal conditions of use. When exposed to an elevated temperature and humidity environment 38°C, 94% RH for 72 hours, there is no evidence of corrosion caused by the flux residue. Throughout its many years of wide usage, 44 Rosin Flux has produced many billions of soldered connections. In all these billions of solder joints, involving the most delicate and critical of electrical and electronic components, there has never been an authentic instance of corrosion by the flux residue under normal conditions of use. This mild property of the residue permits leaving the flux on the assembly for many 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 W. Thorndale Avenue, Itasca, Illinois, 60143 USA Phone +1 847-297-1600 • Email • Website: Asia Pacific Headquarters 500 Chai Chee Lane Singapore 469024 +65 6449-1133 European Headquarters Zum Plom 5 08541 Neuensalz Germany +49 3741 4233-0 Japanese Headquarters 20-11 Yokokawa 2-Chome Sumida-Ku Tokyo 130-0003 Japan +81 3-3624-5351 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 potential 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.

PDF Datasheet Preview

44 Activated Rosin Cored Wire

Product Description

Kester 44 Rosin Flux is an activated rosin formula for use in flux-cored solder wire. Kester 44 Rosin Flux has virtually dominated the field of activated rosin core solders for well over four decades. An outstanding performance feature of this flux is the "instant-action" wetting behavior. The high mobility and fast-spreading action of this flux results in more reliable production line soldering.

Performance Characteristics
• High activity RA formulation
• Excellent solderability to a wide variety of metallizations
• Industry standard RA cored wire for decades
• Classified as ROM1 per J-STD-004

Reliability Properties

Copper Mirror Corrosion Moderate

Tested to J-STD-004, IPC-TM-650, Method

Corrosion Test Moderate

Tested to J-STD-004, IPC-TM-650, Method

Silver Chromate Fail

Tested to J-STD-004, IPC-TM-650, Method

Chloride and Bromides:

Tested to J-STD-004, IPC-TM-650, Method

Fluorides by Spot Test Pass

Tested to J-STD-004, IPC-TM-650, Method

Application Notes

Availability Kester 44 is available in a wide variety of alloys, wire diameters and flux percentages. For most applications, Sn63Pb37. Consult the alloy temperature chart in Kester’s product catalog for a comprehensive alloy list. The standard wire diameter for most applications is 1.00mm 0.031in . Wire diameters range from 0.256.00mm to 0.250in . A "Standard Wire Diameters" chart also is also included in Kester’s product catalog. The amount of flux in the wire dictates the ease of soldering for an application. For most applications, core 66 flux by weight is recommended. Other core sizes, 50 and 58, and respectively are available. Kester 44 is packaged on spools of different sizes to accommodate a variety of applications.

Process Considerations Solder iron tip temperatures are most commonly between 315-371°C 600-700°F for Sn63Pb37 and Sn62Pb36Ag02 alloys. Heat both the land area and component lead to be soldered with the iron prior to adding Kester 44 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 Mildly Activated Rosin Flux may be used as a compatible liquid flux to aid in reworking soldered joints. Kester 186 Mildly Activated Rosin Flux is also available in for optimum board cleanliness.

Cleaning Kester 44 possesses excellent fluxing ability, the flux residue is non-corrosive and non-conductive under normal conditions of use. When exposed to an elevated temperature and humidity environment 38°C, 94% RH for 72 hours, there is no evidence of corrosion caused by the flux residue. Throughout its many years of wide usage, 44 Rosin Flux has produced many billions of soldered connections. In all these billions of solder joints, involving the most delicate and critical of electrical and electronic components, there has never been an authentic instance of corrosion by the flux residue under normal conditions of use. This mild property of the residue permits leaving the flux on the assembly for many 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 W. Thorndale Avenue, Itasca, Illinois, 60143 USA Phone +1 847-297-1600
• Email
• Website:

Asia Pacific Headquarters 500 Chai Chee Lane Singapore 469024 +65 6449-1133

European Headquarters Zum Plom 5
08541 Neuensalz Germany
+49 3741 4233-0

Japanese Headquarters 20-11 Yokokawa 2-Chome

Sumida-Ku Tokyo 130-0003 Japan
+81 3-3624-5351

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 potential 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.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived 24-6040-0066 Datasheet file may be downloaded here without warranties.

Datasheet ID: 24-6040-0066 644828