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  • MG Chemicals 4900 SAC305, 96.3% Tin, 0.7% Copper, 3% Silver, No Clean Lead Free Solder, 0.032" Diameter
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MG Chemicals 4900 SAC305, 96.3% Tin, 0.7% Copper, 3% Silver, No Clean Lead Free Solder, 0.032" Diameter

Available in multiple versions


Price: $5.35 - $187.31
Product Specifications
Brand Name MG Chemicals
Part Number 4900-35G
Manufacturer Series Number 4900
Outside Diameter 0.032  inches
UNSPSC Code 23271806

M.G. Chemicals no clean Lead-Free Solder was designed with 96.3 percent tin, 0.7 percent copper a... Read full product description


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0.032" Diameter, 0.6 oz Pocket Pack B003D8O7UA
In Stock (31)
$5.35
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0.032" Diameter, 1 lbs Spool B005T8UKL2
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$84.95
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0.032" Diameter, 1/2 lbs Spool B008OA7RYA
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$47.75
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0.032" Diameter, 1/4 lbs Spool B008OA7SYE
$5.35
+ $2.00 Shipping
1 fl oz B00M0F4TDC
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10 pack B00R3Q64YA
$107.12
+ $3.99 Shipping
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Product Features

  • Lead free, complies with RoHS
  • Exceeds the impurity requirements of J-Std-006
  • No clean flux, excellent wettability
  • Hard non-conductive residues
  • 1/32" Diameter

Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B008UH436C
  • Average Customer Review: 4.7 out of 5 stars  See all reviews (10 customer reviews)
  • Product Warranty: For warranty information about this product, please click here

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Product Description

M.G. Chemicals no clean Lead-Free Solder was designed with 96.3 percent tin, 0.7 percent copper and 3 percent silver alloys as a lead-free alternative for the standard Tin and Lead solder. These alloys conform to the impurity requirements of J-Std-006 and RoHS. Use this solder anywhere you would use normal solder. M.G. Chemicals Lead Free Solder utilizes a state-of-the-art automatic wire extrusion and wire drawing machines to manufacture consistent solder. The introduction of flux core in the wire extrusion process involves constant monitoring of flux percentage to ensure minimal flux voids and irregular wire. Typical flux percentage for our Lead Free Solder is 2.0-4.0 percent. A unique flux system was specifically used for high temperature lead free alloys. It provides the fluxing activity levels that promote fast wetting action and maximum wetting spread. Utilizing synthetically refined resin and very effective activator that wets and spreads like an RA type. This special activator exhibits virtually no spattering. Activator conforms to J-STD-004, REL0. Cleaning Flux core is a no clean formulation therefore the residues do not need to be removed for typical applications. Ag content: 2.8-3.2 percent . Cu content: 0.3-0.7 percent . Sn content: Balance. Flux classification: ORL0. Copper mirror: no removal of copper film. Silver chromate: pass. Corrosion: pass. SIR JSTD-004,Pattern down: 2.33 x 10 11 ohms. SIR Bellcore (Telecordia): 6.12 x 10 11 ohms. Electromigration: pass. Post reflow flux residue: 55 percent . Acid value: 190-210. Flux residue dryness: pass. Spitting of flux-cored solder: 0.30 percent . Solder spread : 130 mm2. Melting point: 217-221 degree C (422.6 - 429.8 degree F). Upper temperature limit: do not to exceed 350 degree C (tip temperature). Wire diameter: 0.032" (0.81 mm). Standard wire gauge: 21. Tolerance: +/- 0.002". Hardness, brinell: 15HB. Coefficient of thermal expansion: pure Sn=23.5. Tensile strength: 4312 psi. Density: 7.39 g/cc.

Customer Questions & Answers

Customer Reviews

4.7 out of 5 stars
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Most Helpful Customer Reviews

1 of 1 people found the following review helpful By Anon on January 19, 2014
Size: 0.032" Diameter, 1/2 lbs Spool Verified Purchase
Be careful with this stuff, as copper vapor is terrible for your health. The solder cools to a matte finish, which makes me wonder if I should redo the job, but found a little more flux paste helps with the shine. The heat needed to melt this stuff is higher than old lead based solder, but not too bad with all things considered.
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1 of 1 people found the following review helpful By Steve on May 9, 2013
Size: 0.032" Diameter, 1/4 lbs Spool Verified Purchase
High quality solder is being used in a HiFi system with no issues. No issues in applying the solder even though I have a terrible soldering iron.
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4 of 6 people found the following review helpful By H. Stevens on April 7, 2013
Size: 0.032" Diameter, 0.6 oz Pocket Pack Verified Purchase
I selected this type of solder because it contains no lead. If you do a lot of soldering, constant contact with lead is a definite hazard. This type of solder presents an alternative, but it turns out that it is difficult to work with. It is not rosin core solder, and it does not adhere easily to electronic contacts. My friend ruined a circuit board trying to connect tiny contacts with this solder, but a lot of the problem might have been that he did not have flux when he started the job. All in all, the solder with lead in it is easier to use, and might be a better alternative if you are soldering delicate things. If you are purchasing solder for work on something small like an iPod or an iPad, purchase rosin core solder with a maximum size of .025, .030 at the very most.
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Size: 0.032" Diameter, 0.6 oz Pocket Pack Verified Purchase
Back 2.5 years ago, I bought this soldering kit: Elenco Electronics ST-12 Soldering Tool Kit. I only used it once back then but a few weeks ago, I ended up needing to use it quite frequently and eventually ran out of the solder that came with the kit.

You see, someone has been vandalizing my Christmas lights by cutting the wires and in order to repair it, I had to solder the wires back together. Since I ran out of the kit solder, I wanted the same kind since it worked well with wiring. Although I'm not sure if this is the kind of solder you need for soldering wires together, I ended up looking for the same solder/material ratio on Amazon. This is one of the few that popped up that didn't come in huge quantities. I just needed a small amount to replenish my stock.

This works just as good as the original solder I had and I'm definitely pleased.
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Size: 0.032" Diameter, 0.6 oz Pocket Pack Verified Purchase
Used to assemble an Objective2 headphone amp. Works well for small electronics products. I'm out of things to say. It's solder. If you need solder, you should buy this.
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