A 1/4 watt 22-ohm resistor is a standard passive component used to limit current and divide voltage in electronic circuits. It safely handles up to 0.25W of power and features a color code of Red, Red, Black, Gold, and Brown.
1/4w22R Resistor (4-Band-R) (Metal oxide film) Code: 37208860 Original price was: 1.00৳ .Current price is: 0.80৳ .
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The FSC 4N35 is a widely used, 6-pin general-purpose optocoupler (optoisolator) manufactured by Fairchild Semiconductor (now part of onsemi). It is designed to transfer electrical signals between two isolated circuits using light, effectively protecting low-voltage components (like microcontrollers) from high-voltage spikes or electrical noise.
FSC4N35 / 4N35 (ON) White Optocoupler DIP-6 Code: 15790043 Original price was: 45.00৳ .Current price is: 35.00৳ .

1/4w470R Resistor (4-Band-R) (Metal oxide film) Code: 07790133

Original price was: 1.00৳ .Current price is: 0.80৳ .

A 1/4W 470 ohm resistor is a standard fixed-value component used to limit or control current in electronic circuits. It is widely used in breadboarding, protecting LEDs, and voltage dividers.

Specifications & Performance

  • Resistance:470 Ω (Ohms)
  • Power Rating:25 Watts (1/4W)
  • Tolerance:Typically ± 1% (Metal Film) or ± 5% (Carbon Film)
  • Operating Voltage:Safe up to ~250V (Metal Film) or 350V (Carbon Film)
  • Temperature Range:-55°C to +155°C

Color Code & Reading
To identify the resistor without a multimeter, read the color bands from left to right (with the tolerance band—usually Gold or Brown—on the far right):

  • Yellow(4) – First digit
  • Violet(7) – Second digit
  • Black(0) – Third digit (in 5-band resistors)
  • Black(× 1 Ω) – Multiplier
  • Brown(± 1%) or Gold (± 5%) – Tolerance

(Note: Older 4-band resistors use Yellow-Violet-Brown-Gold)

 

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