The crystal diode is usually represented by a "D" plus a number in the circuit, such as: D5 represents a diode numbered 5.
Function: The main characteristic of the diode is unidirectional conductivity, that is, the on-resistance is small under the action of the forward voltage; and the on-resistance is extremely large or infinite under the action of the reverse voltage.
Because the diode has the above characteristics, it is often used in cordless telephones in circuits such as rectification, isolation, voltage regulation, polarity protection, code control, frequency modulation and squelch. The crystal diodes used in telephones can be divided into: Rectifier diodes (such as 1N4004), isolation diodes (such as 1N4148), Schottky diodes (such as BAT85), LEDs, Zener diodes, etc.
Peristaltic Tube Pump Characteristic :
1 Clean and pollution-free: fluid only passes through and touches the Peristaltic Pump hose.
2. High precision: constant current, reproducibility of up to 0.5%, and flow can be precisely adjusted.3. Low shear force: It is an ideal tool for conveying shear-sensitive and corrosive fluids.
4. Corrosion resistance: it can transport various fluids, such as organic solvents and corrosive liquids.
5. Idling and dry operation: air or gas-liquid-solid three-phase mixed transportation can also be transported.
6. Possess self-priming ability: self-priming, no need to fill the pump, no need to empty.
7. It has the function of a shut-off valve, does not siphon, has no seals, and has the functions of a shut-off valve and a check valve.
8. Two-way conveying function: reverse pumping and back-suction functions can be realized by changing the direction of the pump runner.
9. Simple maintenance: only need to replace the peristaltic pump hose, no valve and seal replacement.
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Baoding Chuangrui Precision Pump Co., Ltd. , https://www.chuangruipump.com