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What is the purpose of the small hole in the prongs of power plugs?

2018-12-18

In the early times, the power plug has a small hole to fix, but now it's different; In fact, the purpose of the small hole in the prongs of power plugs is of heat dissipation, especially in the joint.

A multimeter is set for diode testing,what resistance value will it stop beeping

2018-12-17

As long as the resistence of diode is less than 30R, the multimeter will stop beeping.

How do I find the one burnt or leaky capacitor on a PCB?

2018-12-17

For burnt capacitor, we can find it easily from the appearance; For leaky capacitor, we can also measure the resistance of capacitor with a multimeter, which will show such a feature: Compared with the circuit, the resistance value is smaller.

What is an average temperature that melts a Sn60/Pb40 solder and solder componen

2018-12-17

The temperature of Reflow should be 210-230 degrees and welding time is 6-10 s. The temperature of Manual welding should generally be set in the range of 260-300 degrees. Meanwhile, welding time is generally not more than 3s.

Which socket outlet in the world has be best design? Why is this so?

2018-12-14

Best Design Type: Siemens series sockets.

What is the RO4350 PCB substrate made of?

2018-12-14

Unlike the common PCB, RO4350 PCB substrate is made of epoxy resinmaterial. That’s to say, there is no glass fiber in the middle of substrate. It is a ceramic substrate with high frequency material.

What is the difference between a schematic diagram and a PCB layout?

2018-12-14

PCB Layout is based on the signal connections and signal features of schematic as well as the features of functional modules.

How is the voltmeter and ammeter connected in a circuit?

2018-12-13

The voltmeter is connected in parallel in a circuit, while the ammeter is in series in a circuit.

Why, in PCB technology, is the board made out of semiconductors?

2018-12-13

As we all know, the circuit board is not only an important electronic part, but also the support of electronic components and the carrier for electrical connection of electronic components.

What is the difference between frequency and amplitude?

2018-12-13

The difference between frequency and amplitude: Frequency is the number of vibrations during unit time, and Amplitude is the magnitude of the vibration.

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