Factory best selling SV-666 General Use Neutral Sealant for Lisbon Factory

We are proud of the high customer satisfaction and wide acceptance due to our persistent pursuit of high quality both on product and service for Factory best selling SV-666 General Use Neutral Sealant for Lisbon Factory, We sincerely welcome you come to visit us. Hope we have good cooperation in the future.

Description

SV-666 neutral silicone sealant is a neutral curing glue single component, the modulus of the. It is specially designed for windows and doors caulking sealing general plastic doors and windows. It has good adhesion to glass and aluminum alloy, and has no corrosion.

Where  to use

It is fit for multiple purpose sealing and bonding applications to form a silicone rubber adhering to adjacent substrates e.g. glass, ceramic, tile, wood and metal.

Key Features

1. 100% silicone

2. Easy to use

3. Waterproofing and weatherproofing

4. Primerless adhesion to most building materials

5. 12.5% movement capability

Technical data sheet

Certification

JC/T881-2001 12.5E；GB/T14683-2003 12.5E

Color

Black，White，Gray

Package

300ml in cartridge * 24 per box, 590ml in sausage *20 per box

Shelf life

12 months

Note

If you want the TDS or MSDS or other details, please contact with our sales person.

This simple animation video clearly explains the topics P-N junction semi conductor or diode, what is forward bias and reverse bias, what is diffusion current and drift current, what is avalanche breakdown etc

What is a P — N junction semiconductor and how is it formed?

The PN junction semi conductor is a combination of P type semiconductor with N type semiconductor to achieve the practical utility of both. It’s formed, when a P type semi conductor is joined to an N type semiconductor.

The P type semiconductor has free holes with positive charged and the N type semiconductor has free electrons with negatively charge.

What happens when a PN junction is made?

When P and N semiconductors are joined to make the PN junction semiconductor diode, the electrons near the PN junction jump from N to P and holes near the junction jump from P to N. This phenomenon creates a space charge region or a depletion layer as shown in the video. At this space charge region due to the movement we have electrons in P region and holes in N region. For some time the electrons move back from P to N in the space region or depletion layer and some holes move back from N to P in the space region. This continues to happen till equilibrium is reached. This movement of electrons and holes in the space region or diffusion layer gives rise to Diffusion current.

What is Forward bias and how does it occur?

Forward bias occurs when the positive terminal of battery is connected to the P region and the negative terminal of battery is connected to the N region. In this condition what happens is the positive terminal repels the holes towards the junction and the negative terminal repels the electrons towards the junction. Due to this repulsion, the depletion region or space region narrows down as shown in the video.

But at a particular condition, If the voltage in the forward bias is above a specified range, the electrons in the N region drifts through the junction and migrates to the P region and the holes in the P region drifts through the junction and migrates to the N region.

Now the current flows across the circuit and this current are called the Drift current.

What is Reverse bias and how does it occur?

Reverse bias occurs when the negative terminal of the battery is connected with the N region and positive terminal with the P region. In this condition holes (positively charged) from the P region get attracted to the negative terminal of the battery and electrons (negatively charged) get attracted to the positive terminal of the battery. This results in the depletion layer to widen up.

Now the PN junction acts as an insulator and will not allow any current to flow in the circuit. But at a condition, if the battery voltage is above a particular limit, which is called as the reverse bias breakdown voltage level. Electrons and the holes breakdown through the PN junction and cross over resulting in the current to flow through the circuit. This break down is called avalanche breakdown

In this process the current flowing through the PN junction is very high and ultimately the PN junction gets damaged due to overheating caused by the excess flow of current.
This is how a PN junction semiconductor works.

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Answer to all the below questions are available in this video:

How pn junction diode works. How diode works, animation diode, animation pn junction, working of pn junction, how does a pn junction semiconductor works, what is avalanche breakdown, what is drift current, how drift current forms, what is space charge region, how space charge region forms, what is depletion layer, how depletion layer formed, how an electric field is formed in pn junction, what is forward bias, what is reverse bias, how forward bias occurs, how reverse bias occurs, what is diffusion current, how diffusion current is formed.