Phone Icon0208 953 1211       Email Iconinfo@conro.com

 x 
Cart empty

Indium Activated Flux-Cored Wire for Non-sensitive Electronics and Electrical Applications

Indium Corporation has developed a range of flux-cored wire solutions to meet the needs of virtually every electrical and non-critical electronic assembly and rework operation. Flux-cored wire solutions are created when the desired alloy, cored wire flux, and flux percentage are combined into a void-free, perfectly layer-wound package, which can be easily used for both hand soldering and automated wire feed solder. Indium Corporation prides itself on providing the industry’s widest range of flux-cored wire solders for both standard electronic assembly as well as highly specialized needs. No application is too large or too small.
Manufacturer: Indium
Description

Introduction

Indium Corporation has developed a range of flux-cored wire solutions to meet the needs of virtually every electrical and non-critical electronic assembly and rework operation. Flux-cored wire solutions are created when the desired alloy, cored wire flux, and flux percentage are combined into a void-free, perfectly layer-wound package, which can be easily used for both hand soldering and automated wire feed solder. Indium Corporation prides itself on providing the industry’s widest range of flux-cored wire solders for both standard electronic assembly as well as highly specialized needs. No application is too large or too small.

Activated Cored Wire Flux

Formulations

• CW-201 Standard Activated Rosin: CW-201is a traditional RA type flux as defined by the legacy Mil-Spec QQ-S-571. It uses traditional grade WW rosin and standard chloride activators. CW-201 is recommended for use with 63Sn/36Pb and 60Sn/40Pb alloys on non-sensitive oxidized copper parts, non-sensitive electrical/electronic assemblies where higher speed wetting is desired, assemblies where the residue is removed after soldering, and for soldering to moderately hard-to-solder metals such as brass and nickel.

• CW-207 Activated Rosin for Lead-Free: CW-207 is similar to CW-201 except that it is formulated using a blend of heat stable clear rosins. It is the standard option for soldering with lead-free alloy core wire when soldering non-sensitive electrical or electronic applications, or when soldering moderately difficult-to-solder metals such as brass or nickel.

• CW-209 Highly Activated Rosin: CW-209 is exactly the same as CW-207 except with twice the amount of halogen activator. It is recommended for use where CW-207 or CW-201 are not active enough to solder to highly oxidized metals, or where speed of wetting is a high concern.

• CW-501 High Activity Rosin-Free No-Clean: CW-501 is rosin (colophony) free and due to the heat stable nature of the resin used and activator system, shows exceptionally effective soldering on a wide range of assemblies with a wide range of alloys and conditions. The resin used has a different odor than those formulas based on rosin and,
while generally non-offensive, will be different than operators typically expect.

Formula

CW-201

CW-207

CW-209

CW-501

Application

Fully Activated Rosin WRAP WW Rosin

Fully Activated Rosin

Highly Activated Rosin

Rosin-Free

No-Clean

IPC J-STD-004*

ROM1

ROM1

ROM1

RELO

IPC J-STD-004B*

ROM1

ROM1

ROM1

REL1

Rosin Containing

Yes

Yes

Yes

No

Halogen-Free per JEITA ET-7304**

No

No

No

No

Actual Halogen Content***

<0.5%

<0.5%

<1.0%

>1500 ppm

Copper Mirror Corrosion IPC J-STD-004B

Fail

Fail

Fail

Pass

SIR J-STD-004B***

Fail

Pass

Fail

Pass

Electromigration J-STD-004B***

Fail

Pass

Fail

Pass

Color

Amber

Clear

Clear

Clear

Odor

Mild, rosin

Mild, sweet

Mild, sweet

Moderate

Alloys

SnPb alloys

Lead-free alloys

All common and high-lead alloys

Common and high-lead alloys

* J-STD-004 and J-STD-004B vary in the way they measure halogen content. J-STD-004B finds both ionic and non-ionic halogen whereas J-STD-004

will find ionic halogen, but most likely will not find non-ionic halogenated activators. Up to 500ppm combined halogen is considered halogen-free.

** JEITA ET-7304 allows up to 900ppm chloride, 900ppm bromide, and up to 1500ppm combined bromide and chloride to be considered halogen-free.

*** Data available upon request.

Standard Flux Core Sizes, Alloys, and Shelf Life

Alloys

High Flux %

Medium Flux %

Low Flux %

Ver y Low Flux %

Shelf Life (<26°C & <60% RH)

SnPb <80% Pb

2.7–3.2%

1.7–2.2%

0.8–1.2%

3 years

Pb-Free Alloys

3.3–3.7%

2.7–3.2%

1.7–2.2%

0.8–1.2%

3 years

High Lead >80%

1.7–2.2%

1.3–1.7%

0.8–1.2%

1 year

Indium Corporation can produce many of the alloys on its alloys list as cored wire. Alloys containing greater than

20% bismuth, greater than 8% antimony, gold, or greater than 5% silver cannot be produced as cored wire at this time.

Standard Diameters and Packaging

Inches

mm Equivalent

Tolerance

Packaging

Car tons

0.010”

0.25

± 0.002”

1/4 lb.

10 - 1/4 lb. spools

0.015”

0.38

± 0.002”

1/4 lb., 1 lb.

10 - 1 lb. spools

0.020”

0.50

± 0.002”

1 lb.

10 - 5 lb. spools

0.025”

0.63

± 0.002”

1 lb.

per box

0.032”

~0.75

± 0.002”

1 lb.

0.040”

1.0

± 0.002”

1 lb., 5 lb.

0.062”

~1.5

± 0.002”

1 lb., 5 lb., 20 lb.

2 - 20 lb. spools

0.120”

3.0

± 0.002”

1 lb., 5 lb., 20 lb.

per box

envelope

CONTACT US

Conro Electronics Ltd
Unit 7, Orbital 25, Dwight Road, Watford, Hertfordshire
WD18 9DA

delivery van icon

NEXT DAY DELIVERY

We offer next day and Saturday deliveries excluding orders made after 3pm weekdays, weekends and public holidays.


AS 9120B

Conro Electronics Ltd certified to the AS 9120B (Aerospace) standard

Click Here To View Our Certificate

ISO 9001:2015

Conro Electronics Ltd certified to ISO 9001:2015

Click Here To View Our Certificate