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24-7068-7606

Organic Cored Wire For Lead-bearing and Lead-free alloys

Unspecified 

®

331

Organic Cored Wire

For Lead-bearing and Lead-free alloys

Product Description

Kester 331 Organic Flux is a water soluble formula

for use in flux-cored solder wire. This cored solder

version of the popular 2331-ZX Neutral Organic

Water Soluble Liquid Flux is more effective than

rosin fluxes in soldering difficult metals. The same

fast action and mild properties are exhibited with

331 Organic Flux as with the liquid 2331-ZX. The

flux is more heat stable than most organic fluxes,

resulting in minimal smoke and odor. The residue

can be completely removed with a simple water

rinse.

Performance Characteristics:

• Excellent solderability to a wide variety of

metallizations

• Easy residue removal in DI water

• Compatible with leaded and lead-free alloys

• Classified as ORH1 per J-STD-004

RoHS Compliance

This product meets the requirements of the RoHS

(Restriction of Hazardous Substances) Directive,

2002/95/EC Article 4 for the stated banned

substances. (Applies only if this core flux is

combined with a lead free alloy)

Reliability Properties

Copper Mirror Corrosion: High

Tested to J-STD-004, IPC-TM-650, Method 2.3.32

Corrosion Test: High

Tested to J-STD-004, IPC-TM-650, Method 2.6.15

Silver Chromate: Fail

Tested to J-STD-004, IPC-TM-650, Method 2.3.33

Chloride and Bromides: 1.2%

Tested to J-STD-004, IPC-TM-650, Method 2.3.35

Fluorides by Spot Test: Pass

Tested to J-STD-004, IPC-TM-650, Method 2.3.35.1

SIR, IPC (typical): Pass

Tested to J-STD-004, IPC-TM-650, Method 2.6.3.3

Day 1

Day 4

Day 7

Blank

1.9 ´1010 W

2.2 ´1010 W

1.7 ´1010 W

331

2.0 ´ 109 W

7.8 ´ 109 W

4.1 ´ 109 W

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