7,5VDC 0,5A 3,75W output, 230VAC 0,044A input Hon-Kwang Electric HKA-7550EC-230 transformer power supply, 4,8x1,5-1,7mm DC plug

  • 7,5VDC 0,5A 3,75W output, 230VAC 0,044A input Hon-Kwang Electric HKA-7550EC-230 transformer power supply, 4,8x1,5-1,7mm DC plug
    7,5VDC 0,5A 3,75W output, 230VAC 0,044A input Hon-Kwang Electric HKA-7550EC-230 transformer power supply, 4,8x1,5-1,7mm DC plug 7,5VDC 0,5A 3,75W output, 230VAC 0,044A input Hon-Kwang Electric HKA-7550EC-230 transformer power supply, 4,8x1,5-1,7mm DC plug
  • Manufacturer:
    Hon-Kwang Electric
    Hon-Kwang Electric
  • Model:
    Hon-Kwang Electric HKA-7550EC-230
  • Dimension:
    69 x 51 x 76 mm
  • Weight:
    257 g
  • Availability: 2pcs
  • Condition: Used
  • Price Including VAT: 4.96€

  • Ex Tax: 4€
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Transformer is an electromagnetic device, which converts alternating electricity voltage or current into another voltage or current of the same frequency. Simple transformer has two wingdings around a steel core, which are insulated from each other, primary winding and secondary winding. Energy is transferred from circuit to another with mutual inductance: current in primary winding creates changing magnetic flux into the steel core. That, in turn, induces a secondary winding terminals with the corresponding voltage depending on the number of turns in the winding (electromotive force).
 
When choosing a power supply you need to know a couple of things (They are usually written into device or it’s power supply):
  • Operating voltage (in Finland ja Europe 230VAC)
  • Output voltage (with this you usually need to be precise, ie if it is written 12VDC in device then use 12VDC power supply, if you are not certain that your device will work with other voltages as well)
  • Does your device use alternating current (AC, VAC) or direct current (DC, VDC)
  • Power supply power or current requirement
    • How much output current capacity is required from power supply (If a certain ampere (A) rating is written in device then power supply must at least supply that amount, ie 8A power supply can be used with 2A device as well as 2A power supply)
    • How much output power capacity is required from power supply (If a certain watt (W) rating is written in device then power supply must at least supply that amount, ie 100W power supply can be used with 30W device as well as 30W power supply)
      • Power (watts) can be calculated by multiplying output current (amperes) with output voltage (volts). Output current can be calculated by dividing output power (watts) with output voltage (volts).
  • Connector type, if your application requires connector (ie measuring will tell you if it is compatible, if you do not want to change the power supply connector)
Transformer advantages:
  • Affordable price
  • Output noise which is coming out from the power supply is nearly every time a hum at 100Hz frequency (depending on the construction it might be 50Hz frequency)
  • Nearly everlasting and virtually impossible to destroy in normal use
  • Damn simple connection/construction (typically it consists of fuse, transformer, rectifier bridge/diode’s, filter capacitor and possible regulation components)
Application examples:
  • Battery chargers
  • Surveillance camera power supply
  • Point of sales appliances power supply
  • IT appliances power supply (modem, LAN switch, printer, scanner)
  • Power supply for your own do it yourself projects
  • Power supply for industrial needs

 

Power supplies
Cable Length 1,9m
Compatible or alternative model markings HK HKA-7550EC-230 Hon-Kwang HKA-7550EC-230
Fuse rating Unknown
Indicator light There is none
Input connector type Male CEE 7/16 IEC 60230 (europlug) (type C) ie. regular slim power connector. Also known as socket mountable power supply.
Input voltage 230VAC
Input voltage frequency 50Hz
Known compatible devices Compatible with numerous types electrical devices
Max input current 0.044A
Max output current 0,5A
Max output power 3,75W
Output connector pinout Center pin: +7.5VDC (+) Outer shell: GND (-)
Output connector type DC plug Outer diameter: 4,8mm Inner diameter: 1,5-1,7mm Length: 10,5mm
Output voltage 7,5VDC
Thermal fuse Unknown

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Tags: switched mode power supply, transformer, DC plug, 230VAC, 7.5VDC, DC connector, 0.5A, 50Hz, power supply, transformer power supply, Hon-Kwang, europlug, HKA-7550EC-230, DC-plug, CEE 7/16,

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