Almit Solder wire and Paste
Almit Solder wire and Paste
- Solder Wire Lead Free
- Solder Paste Lead Free
- Dispenser Paste
- Solder Wire Leaded
- Solder Paste Leaded
- Solder Bars & Solder Wire
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Phone:+44 (0)23 8065 0065
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An Innovative Solution
The soldering pastes and soldering wires in the SJM series are the results of extensive development work by the Almit research department. Whilst general lead-free alloys used up until now already begin to show cracks after 500 cycles, the patented SJM 03 for example even remains intact after 1,500 cycles and shows no cracks whatsoever.
With perfect strength
The SJM series delivers a new dimension in strength to lead-free alloys. And so the initial strength of SJM 03 compared to the usual SAC 305 alloy used shows an improvement of 6%.
The added metals and their advantages
- Bi (bismuth) increases the tensile strength and resistance to tearing, increases the long-term reliability.
- Fe (iron) minimises wear on the soldering tip
- Sb (antimony) ensures even better long-term reliability
- Ga (gallium): prevents oxidisation
The strength after 2,000 cycles can even be up to 33% higher. Even for a still higher strength there is an optimum solution:
SJM series lead-free alloys:
Silver content from 0.3% up to 4%.
Ideal with through–hole contacts
Characteristic for the SJM series alloys are the superlative wetting and working characteristics (RMA compliant). In this way they are ideally suited for soldering on through-hole circuit boards.
SJM series – ideal for through–hole circuit boards
The advantages of the SJM series at a glance
- no crack formation
- perfect strength
- a silver content of from 0.3% to 4%
- patented alloy
- ideal for through-hole soldering
What does SJM stand for?
"SJM" stands for high-strength alloys with particularly high strength. There is no crack formation when the solder joint hardens.
"SJM" steht für hochfeste Legierungen mit besonders hoher Festigkeit. Es kommt zu keiner Rissbildung bei der Aushärtung der Lötstelle.
We tested SRS RMA-Nc SJM with conventional soldering wires. With a clear winner.
The winner of the test for fl ux splashes
Test method: Spot soldering onto a copper plate using a soldering robot. The copper plate lies on thermo-paper, count of fl ux splashes on the thermo-paper.
Quicker is better
The test shows that you have a faster speed of wetting with the SJM series soldering wires.
SJM-03 is the winner of the test for strength & price
SJM 03 is convincing: higher strength and lower price than the standard alloy.
Test methode: from -40°C to + 85°C with a 30 minute holding time on a 1206 structural element.
SJM-40 – the muscle packet of the SJM series
SJM-40 even fulfi ls the highest demands. Along with bismuth and antimony it contains a higher silver content and guarantees high performance in long-term reliability. Even with very high temperature changes SJM retains its perfect strength.high strength
contains bismuth and antimony
high silver content