Products Solder Ribbon and Foil

Solder Ribbon and Foil

Indium Corporation manufactures high-quality solder ribbon and foil that can meet your most demanding applications. Solder ribbon and foil are available in standard alloys and sizes but are highly customizable to meet your dimensional requirements. 

Powered by Indium Corporation

  • Solder Ribbon is Supplied in Continuous Lengths and Packaged on Spools
  • Solder Foil is Supplied in Sheet Form
  • Highly Customizable
Two spools of metallic ribbon labeled "Indium Corporation" with a loose strand curving in front of them, set on a dark textured surface.

Solder Ribbon & Foil Shelf Life

Shelf life depends on alloy composition: Pb-free alloys and those with <70% lead last one year from the date of manufacture (DOM), while >70% lead alloys last six months.

Solder Foil Dimensions

Indium Corporation offers solder foil sheets up to 144 square inches, with custom sizes and shapes available.

Standard tolerances:

  • Width/Length: ±0.062″ (1.57 mm)
  • Thickness: ±0.001″ (0.025 mm)

Solder Ribbon & Foil Storage

Store solder ribbon and foil in sealed containers at <22°C and 55% RH, or in an inert atmosphere like nitrogen.

Packaging Options

Indium Corporation offers standard and custom packaging based on alloy type and ribbon width. Each order includes a Certificate of Analysis (COA) and, if needed, a Certificate of Conformance.

Precision and Consistency

Cleanliness

Cost and Efficiency

Numerous Combinations

Explore our popular solder ribbon and foil alloys below, or use our Solder Alloy Selector Guide to find the best match for your requirements.

Indalloy®Solidus (°C/°F)Liquidus (°C/°F)CompositionMass Density (gm/cm3)Electrical Conductivity (% of Cu)Thermal Conductivity W/cm°C @ 85°CThermal Conductivity W/cm°C @ 20°CCoefficient of
Thermal Expansion in/in °C
Tensile Strength (PSI)Bond Holding Strength (Shear) (PSI)

1E
118/244 118/24452In48Sn7.29 9.08 0.41
14.0 3,1001,630
281138/281 138/28158Bi42Sn8.56 4.5
0.16 15.0 11,700500
290143/290 143/29097In3Ag7.38
23.00

0.84 38.0 1,200
2149/300 154/30980In15Pb5Ag7.85 13.00
0.53
22.0
3,3702,150
4157/315 157/315100In 7.31 24.00
0.83 30.89 386 890
9154/309 167/33370Sn
18Pb
12In
7.79 12.20 0.45
24.0 5,3204,190
204165/329
175/347
70In
30Pb
8.19 8.80
0.38 28.0 3,450
SN62179/354 179/35462Sn
36Pb
2Ag
8.41 11.90 0.45
27.0 10,910
7,540
205173/343 181/35860In
40Pb
8.52 7.00 0.29
23.0 4,150
SN63183/361 183/36163Sn
37Pb
8.39 11.50 0.48
25.0
8,720
6,200
7184/363 210/41050In
50Pb
8.86 6.00

0.22
27.0 4,6702,680
121221/430 221/43096.5Sn
3.5Ag
7.36 16.00 0.33
24.0 5,6902,700
128232/450 232/450100Sn 7.28 15.60
0.73

25.0 2,800
10240/464 260/50075Pb
25In
9.97 4.60
0.31 29.0 5,1203,520
182280/536 280/53680Au
20Sn
14.51
0.57
15.0 40,00040,000
183356/673 356/67388Au
12Ge
14.67
0.44
13.0 26,80026,825
2001,064/1,9481,064/1,948100Au 19.30
73.4
3.18
14.0 20,000

Product Data Sheets

Solder Ribbon and Foil PDS 97621 R8.pdf
Solder Ribbon and Foil PDS 97621 (A4) R8.pdf
Indalloy®151 Preforms and Ribbon TDS 100146 (A4) R1.pdf
Indalloy®151 Preforms and Ribbon TDS 100146 R1.pdf

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Do you have technical questions or sales inquiries? Our dedicated team is here to help. “From One Engineer to Another®” isn’t just our motto—it’s our commitment to delivering exceptional service. We’re ready when you are. Let’s connect!

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