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4925-112G

P1-P3P4-P5
SAC305 RA Solder Wire
4925–4926 Technical Data Sheet
ISO 9001:2008 Registered Quality System. Burlington, Ontario, CANADA SAI Global File: 004008 4925–4926
Page 1 of 5
Date: 31 August 2017 / Ver. 2.00
COMPLIANCE
✓ Dobb-Frank (DRC conflict free)
✓ REACH (compliant)
✓ RoHS (compliant)
Description
The 4925–4926 SAC305 RA Solder Wire is an electronic grade, lead-free solder wire.
It uses the predominant lead-free alloy composition and exceeds J-STD-006C and meets ASTM B 32 purity
specifications. It is complemented with a rosin activated, medium activity flux that is classified as ROM1
according to J-STD-004B. This solder is a great alternative to leaded solders.
The 4925–4926 non-leaded solder series achieve a consistent solder and flux percentage through a state-
of-the-art, extrusion, wire-drawing machine. This machine continually monitors the wire to prevent voids
and ensure consistency, providing a top-grade solder wire.
Benefits & Features
• Lead free & rosin activated flux
• Alloy exceeds J-STD-006C and meets ASTM B 32
purity requirements
• Flux meets J-STD-004B
• Fast wetting
• Fast flowing
• Non-corrosive
• Non-conductive residue
Wire Sizes Availability
Cat No.
Std. Wire
Gauge
Diameter
Packaging
Sizes
4925
21
0.81 mm
Spool
¼ or 1 lb
4926
19
1.02 mm
Spool
¼ or 1 lb
General Flux Parameters
Properties
Value
Residue Removal
Not required
Flux Percentage
2.2%
Flux Feature
Fast wetting, fast flowing, non-conductive
Shelf Life
5 y
Continued on the next page
SAC305 RA Solder Wire
4925–4926 Technical Data Sheet
ISO 9001:2008 Registered Quality System. Burlington, Ontario, CANADA SAI Global File: 004008 4925–4926
Page 2 of 5
Date: 31 August 2017 / Ver. 2.00
Flux Core Properties
The rosin activated flux wets rapidly and is fast flowing. It is also non-conductive and non-corrosive.
Physical Properties
Method
Value
Flux Classification
J-STD-004B
ROM1
MIL-F-14256F
RA
Flux Type
Rosin
%Halides
0.5–2.0%
Color
—
Amber solid
Softening Point of Flux Extract
80 °C [176 °F]
Acid Number (mgKOH/g sample)
IPC-TM-650 2.3.13
150–160
Silver Chromate—Chlorides + Bromides
IPC-TM-650 2.3.33
Detection
Surface Insulation Resistance (SIR)
IPC-TM-650 2.6.3.3
>1.0 × 10
9
Ω
Corrosion Test
IPC-TM-650 2.6.15
Non-corrosive
Cleaning Requirements
—
Application dependent
a)
a) Since there is only 2.2% flux, removal of residue can be considered optional for some applications.
SAC305 Alloy Typical Literature Properties
Physical Properties
Value
a)
Color
Silvery-white metal
Density @26 °C [78 °F]
7.49 g/cm
3
Tensile Strength
29.7 N/mm
2
[4 310 lb/in
2
]
Tensile Yield
25.7 N/mm
2
[3 720 lb/in
2
]
Elongation
27%
Shear Strength @20 °C and 0.1 mm/min
27 N/mm
2
[3 900 lb/in
2
]
Shear Strength @100 °C and 0.1 mm/min
17 N/mm
2
[2 500 lb/in
2
]
Creep Strength @20 °C and 0.1 mm/min
13 N/mm
2
[1 900 lb/in
2
]
Shear Strength @100 °C and 0.1 mm/min
5.0 N/mm
2
[730 lb/in
2
]
Hardness
15 HB
Electric Properties
Value
Volume Resistivity
13
Ωcm
Electrical Conductivity
b)
16.6% IACS
Continued on the next page
SAC305 RA Solder Wire
4925–4926 Technical Data Sheet
ISO 9001:2008 Registered Quality System. Burlington, Ontario, CANADA SAI Global File: 004008 4925–4926
Page 3 of 5
Date: 31 August 2017 / Ver. 2.00
Continued…
Thermal Properties
Value
Melting Point, Solidus
217 °C [423 °F]
Melting Point, Liquidus
221 °C [430 °F]
Tip Temperature Upper Limit
Do not exceed 350 °C [662 °F]
Coefficient of Thermal Expansion (CTE)
c)
23.5 ppm/°C
Thermal Conductivity
58.7 W/(m·K)
NOTE: This table present typical literature values for SAC305 alloys.
a) N/mm
2
= mPa; lb/in
2
= psi;
b) International Annealed Copper Standard: 100% give 5.8 × 10
7
S/m.
c) CTE unit conversions: ppm/°C = m/(mK) = in/in/°C × 10
-6
= unit/unit/°C × 10
-6
Solder Alloy Composition
Properties
Value
Properties
J-STD-006C
4925–4926
MAIN INGREDIENTS
IMPURITIES
a)
REQUIREMENTS
SPECIFICATIONS
Sn
96.2 to 96.8%
Sb
≤0.20% Max
≤0.05% Max
Ag
02.8 to 3.2%
Bi
≤0.10% Max
≤0.05% Max
Cu
00.4 to 0.6%
In
≤0.10% Max
≤0.05% Max
Pb
≤0.07% Max
≤0.05% Max
Au
≤0.05% Max
≤0.002% Max
As
≤0.03% Max
≤0.01% Max
Fe
≤0.02% Max
≤0.01% Max
Ni
≤0.01% Max
≤0.005% Max
Al
≤0.005% Max
≤0.001% Max
Zn
≤0.003% Max
≤0.001% Max
Cd
≤0.002% Max
≤0.001% Max
a) Exceeds the requirements of J-STD-006C and meets ASTM B 32.
Storage
Protect from direct heat or sunlight. Store between 18 to 27 °C [65 to 80 °F].
Cleaning
The flux residue does not need to be removed for typical applications. If removal is desired, a solvent
system like the MG 4140 can be used. For best results, warm the cleaning solution to about
40 °C [104 °F].
P1-P3P4-P5

4925-112G

Mfr. #:
Buy 4925-112G
Manufacturer:
MG Chemicals
Description:
SAC305 Solder Wire
Lifecycle:
New from this manufacturer.
Delivery:
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