language icon
menu icon

    Quick Contact Info


    1 / F and 2 / F, building B, Honghua science and Technology Innovation Park, laowei Industrial Zone, Hualian community, Longhua street, Longhua District, Shenzhen china

    What is difference between hard and soft 50 50 tin lead solder bar?


    50 50 tin lead solder bar with a soldering iron is common in extremely rare cases:

    • when prototyping new devices during design work;
    • for individual or small-scale production of new products;
    • When repairing equipment and devices in which LEDs are common, for example, tapes.

    What is soldering?

    The term soldering means a method of permanently connecting two or more contacting parts made of metal or with a metallized surface. It is carried out by filling the gap between the parts with a low-melting metal, which is called a solder. Before soldering, the metal surface must be cleaned of oxides, oil, dirt, etc. Clean mechanically with a brush, knife, and soldering iron tip.

    50 50 tin lead solder bar

    It is supplemented with dry cleaning with a flux for soldering 50 50 tin lead solder bar. It can be, for example, a solution of rosin in alcohol, in the form of a gel or a paste from a flux with micro beads of solder, etc. Low-melting alloys, i.e. with a low melting point, alloys of tin, lead, silver, cadmium, etc. are common as solders.

    How we can increase the strength of the soldering material?

    If the strength of the solder material is not enough to hold the parts, then the surfaces to be joined are tinned with a thin layer of solder, mechanically connected and soldered. The wires are twisted, the leads in the metallized holes are bent, the cases of LEDs and other elements are glued to the board.

    What soldering methods to be common nowadays?

    In the mass production of LED devices - tapes, lamps, rulers, modules, etc., mechanized and automated soldering methods are common - with group soldering irons, using a soldering station, dipping into a bath with solder, a wave of molten solder, hot air, etc.

    LED soldering procedure

    The soldering procedure for high-power LEDs can be divided into two stages:

    • soldering the LED housing itself to the aluminum heat sink board;
    • soldering the leads of the LED to the contact pads

    The body is soldered by applying a solder paste for soldering 50 50 tin lead solder bar , for example, Mechanic MCN-300, consisting of 45 - 25 µm balls of solder (63 parts of tin, 37 parts of lead) and flux paste.

    Soldering 50 50 tin lead solder bar

    Before soldering the 50 50 tin lead solder bar at home, apply a paste to the soldering point and to the bottom of the LED housing and press it. Install the board on an iron with a thermostat and gradually heat it until the paste melts. You can heat with a building hairdryer, or on a gas or electric stove. Soldering temperature of LEDs should not be more than 200 - 215 ℃.

    HOW SMD and COB LEDs are soldered?

    They work with a soldering iron with a thin narrow tip.

    • Place the paste in the gap between the contacts
    • Heat it up with a soldering iron.
    • The time and temperature are the same.
    • Overheating of the contact pads
    • print tracks on serviceable ones can cause them to peel off
    • Then you have to install wire jumpers or even throw away the board.


    Since you are studying the hardware of computers and peripherals, sooner or later you will have to pick up a soldering 50 50 tin lead solder bar. All electronic components of a computer and peripheral devices contain metal leads through which they can be combined into electronic circuitry. The connection can be done by soldering or by detachable connections:


    • In the first case, it is impossible to change these components without a soldering iron
    • In the second case, a part with leads (pins) or contact pads is inserted into a connector
    • A special design that has a mating contact part.
    • This approach allows, if necessary, to quickly change components (processor, BIOS chip)
    • You can change entire modules (for example, memory) and expansion cards.

    What is solder in 50 50 tin lead solder bar?

    Soldering is the process of joining components of an electronic circuit together using solder. Solder is an alloy of low-melting metals, the main of which are tin and lead. It is interesting to note that the alloy of these two metals can have a melting point lower than either of them separately. Moreover, the melting point of the 50 50 tin lead solder bar varies depending on the percentage of tin and lead.

    The POS brands are widely known. The number after the letters means the percentage of tin, for example, POS-40 or POS-60. In addition to tin and lead, solder can also contain other metals - cadmium, bismuth, antimony. Such solders have a lower melting point. Thus, the Rose alloy has a melting point of 94 of C, and Wood's alloy containing cadmium, about 68 of C, i.e. they melt in boiling water.


    Lead and tin based solders are referred to as soft solders. Solder POS-40Their melting point does not exceed 300 o C. There are also hard solders containing silver, zinc, and copper. They have improved strength and melting point of greater than 300 of S.

    How we can differentiate between hard and soft solder?

    Poking with a sharp object into the soft soldering area will leave a noticeable dent. And if hard solder was common, there will be no deep dent, only a scratch. When soldering, 50 50 tin lead solder bar the leads of the parts are connected to each other by means of molten solder, which has a sufficiently high electrical conductivity
    50 50 tin lead solder bar china

    . 50 50 tin lead solder bar Soldering station

    Ambitious electronics hobbyists, service technicians and developers appreciate all the benefits of a 50 50 tin lead solder bar soldering station. This is because the optimum welding temperature is precisely maintained.

    And with massive heat dissipation through large solder surfaces, the solder is quickly heated to the required temperature. This means that the soldering process can be done in a short period of time without subjecting the components to excessive thermal stress.

    A further advantage of the soldering stations is that different soldering tips with different shapes are available for the respective soldering irons.

    Gas Soldering

    At the latest, when welding is needed and there is no power supply, the advantages of a gas welder are appreciated.

    For example, a loose battery plug can be soldered onto a model airfield just as quickly and easily as the torn speaker cable in the trunk.

    contact icon chevron up icon
    close white icon
    loading png Loading