1N4148 -100V ,450mA | Diode Small Signal

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  Specification

  • Size : 75mm (length) x 55mm (W) x 19.3mm (height);

  • Weight : 80g;

  • PCB Color : Blue;

  • board four weeks with four screw holes, hole diameter 3.1mm, easy to install and fixed;

  • Relay selection of quality loose music relays, SPDT. A common terminal, a normally open, one normally closed terminal;

  • optocoupler isolation, good anti-jamming;

  • Low pull, high release. Energisation status indicator light, release status LED is off;

  • VCC for the system power, JD_VCC for the relay power. Default hair 12V relay, plug the jumper cap to;

  • Relay Maximum output : DC 30V/10A, AC 250V/10A

  • Wiring : VCC : positive power supply system GND : System power supply negative IN1 – IN4 : relay control ports

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  BC557 PNP General Purpose Transistor 45V 100mA TO-92 Package

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  BC557 is a widely used PNP bipolar junction transistor manufactured in small TO-92 package. It is a general purpose PNP transistor that can be used as a switch or amplifier in electronic circuits. Its HFE ratings are 125 to 800 which makes it an ideal transistor to use as a small signal amplifier in electronic circuits for example for audio signal amplification or other, the HFE ratings of BC557 can be determined by the last letter after its number for example BC557A HFE ratings are 110-220, BC557B HFE ratings are 200-450 and BC557C HFE ratings are 420-800. The max collector dissipation is 500 milliwatt which is also an another good point to use it in amplification stages. Moreover it will also perform well when used it as a switch for load under 100mA. The transistor has also good collector to emitter (VCE) value that is -45V, therefore you can easily use it in circuits using 40 to 45 volts DC.

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  1 Channel Relay (Imported) | Optocoupler High Level Relay Module Board 5V 1-CH for PIC ARM DSP AVR | Compatible with Arduno NodeMCU Raspberry Pi | (Excellent Quality))

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  1-Channel Solid-State Relay is some what similar to that of a mechanical relay & the difference is that, there is no moving contact in a Solid-State Relay. Here we make use of Phototropic coupler to turn it ON and OFF.

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