RFID RC522 13.56 MHZ Reader/Writer SPI S50 Card and Keychain
₹128.00
RFID (radio frequency identification) systems use data strings stored inside RFID tags or transponders) to uniquely identify people or objects when they are scanned by an RFID reader. Because passive tags require a strong RF field to operate, their effective range is limited to an area in close proximity to the RFID reader.
4 in stock
4 in stock
- Low-cost method for reading passive RFID EM4100 family transponder tags
- Reading Distance 5-10cm of the reader
- 125kHz read frequency
- RS232 serial interface
- Built in Antenna
- Status LED for card detection
- On-Board Power LED
12 reviews for RFID RC522 13.56 MHZ Reader/Writer SPI S50 Card and Keychain
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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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- Supply Voltage : 7V
- Input Voltage : 5.5V
- Operating Free Air Temperature Range : 0°C to +70°C
- Storage Temperature Range : −65°C to +150°C
- Add to cartCrystal Oscillators are used as a quick and easy way to offer circuits a very accurate and consistent frequency output. This 16 MHz Crystal is a thru-hole type and is typically used with microcontrollers.
Add to cartSpecification
- 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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It is one of the most popular and long lived switching diodes because of its dependable specifications and low cost. The 1N4148 is useful in switching applications up to about 100 MHz. The 1N4148 comes in a DO-35 glass package for thru-hole mounting.
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Best cost electronic components in India
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Zohar (verified owner) –
Good techinical knowledge
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