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Sn99,3Cu0,7 PRO

Lead-free solder alloy with flux, for universal use in electronics and electrotechnics.

  • Pb Free
  • Low activity
  • Colophony-based
  • Halide free

Alloy designation in accordance with ISO 9453:2020:
Sn99,3Cu0,7 (401)
Product type: Cored solder wire
Flux: PRO

1. General characteristics

The solder was produced in the first smelt of tin and copper. The composition of the solder complies with the ISO 9453 standard. The flux PRO has good spread and its J-STD classification is ROL0. It is lead-free solder wire for manual and automatic processes used in industrial applications in electronics and electrical engineering, where meeting the requirements of the RoHS Directive is required.

Sn993Cu07 07 500G Idx

2. Chemical compositions, mass fraction in %

Sn Cu Bi Sb Ag Cd Au In Pb Al As Fe Ni Zn
rest 0,05 - 0,90 max 0,10 max 0,10 max 0,10 max 0,002 max 0,05 max 0,10 max 0,07 max 0,001 max 0,03 max 0,02 max 0,01 max 0,001

3. Physical characteristics

Melting point: (solidus / liquidus)227°C
Density7,31 g/cm3
Electrical conductivity0,126 μΩ•m
Thermal conductivity66 W/m•K
Tensile strength300 kgf/cm2
Elongation at break21 %
Hardness9 HB
Suggested operating temperatures340 - 420°C (recommended soldering temperature above 380 °C)

4. PRO flux

acc. to DIN 8511SW32
acc. to ISO 94541.1.3.B
acc. to J-STD-004ROL0
Flux content3,0 +/- 0,2% other on request
Halide content0,0 %
Acid Value305 ±10 mg KOH/g
Corrosivenessnoncorrosive

5. Other information

Available diameters

0,25 • 0,38 • 0,50 • 0,56 • 0,70 • 0,80 • 0,90 • 1,00 • 1,20 • 1,50 • 1,60 • 2,00 • 2,50 • 3,00 • 4,00 mm

other on request

Packed

100 g – cartons 30 pcs./3kg
250 g – cartons 5 kg
500 g – cartons 5 kg
1 kg – cartons 10 kg

other on request

Expiration date 5 years from the end of the year of production.
for example: batch 61112233 = date of production 2016, date of expiry end of 2021
Label Reels and cartons marked with alloy type, flux type, diameter, net weight and batch number.
Storage Store at room temperature, in a dry place and beyond the reach of children.

Files to download:

Sn99,3Cu0,7 PRO - Technical data sheet (TDS)

Sn99,3Cu0,7 PRO - Safety data sheet

Physical, mechanical and chemical properties available in the TDS (download above).

PROCESSES

Find products by application

  • Soft soldering process used in the assembly of surface-mount devices (SMD) on printed circuit boards (PCB).

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  • Minor assembly works which do not require professional equipment.

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  • Professional soldering on printed circuit boards (PCB) using through-hole technology (THT).

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  • Process of selectively soldering components that are exceptionally temperature-sensitive therefore cannot be soldered in a traditional way.

    More
  • For cable tinning and small scale soldering.

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  • For car body tinning, evening out and reconstruction before painting.

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  • Minor SMD and THT reworks and general electronic equipment repairs.

    More
  • Reflow Soldering
  • Manual Soldering & Repair
  • Wave Soldering
  • Selective Soldering
  • Dip Soldering
  • Car Body Renovation
  • Rework

PROCESSES

Find products by application

  • Reflow Soldering
  • Manual Soldering & Repair
  • Wave Soldering
  • Selective Soldering
  • Dip Soldering
  • Car Body Renovation
  • Rework
  • Soft soldering process used in the assembly of surface-mount devices (SMD) on printed circuit boards (PCB).

    More
  • Minor assembly works which do not require professional equipment.

    More
  • Professional soldering on printed circuit boards (PCB) using through-hole technology (THT).

    More
  • Process of selectively soldering components that are exceptionally temperature-sensitive therefore cannot be soldered in a traditional way.

    More
  • For cable tinning and small scale soldering.

    More
  • For car body tinning, evening out and reconstruction before painting.

    More
  • Minor SMD and THT reworks and general electronic equipment repairs.

    More

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