Power Factor Correction

Power factor correction ICs (integrated circuits) are devices designed to improve the efficiency of an electronic circuit that contain other devices with lower power factor. Power factor is the measurement of the efficiency of input power. Power factor correction (PFC) is designed to improve the power quality by improving this efficiency. They feature capacitors or inductors which are used to counteract the inefficiencies of motors and machines.

How is it power factor calculated?

Power factor is the Real Power minus Reactive Power. Real power is the power required to carry out the task. Reactive power is the excess power that is used, but is not required by the task. The goal is for power factor to be 100% in its efficiency, or 1pf. Power factor can be calculated by Active (or true) power divided by Apparent power. Reactive operates at a right angle to True power.

Why use power factor correction ICs?

Power factor correction can be used in many applications to help financially. This is achieved through reducing power consumption or reducing the unnecessary Reactive Power.

Where is PFC used?

  • Computers
  • Power supplies
  • Lighting
  • Induction welders
  • Electrical motors

...
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Description Price Maximum Switching Frequency Start-up Supply Current IC Type Maximum Source Current Maximum Sink Current Maximum Supply Current Zero Power Detection Mounting Type Package Type Pin Count Dimensions Height Length Maximum Operating Supply Voltage
RS Stock No. 146-4554
Mfr. Part No.PFS7625L
$4.116
Each (In a Pack of 5)
units
123 kHz - Power Factor Controller - - 1.05 mA Yes Through Hole ESIP-16G 16 16.59 x 2.06 x 8.25mm 8.25mm 16.59mm 15 V
RS Stock No. 146-4525
Mfr. Part No.PFS7636H
$4.47
Each (In a Tube of 30)
units
123 kHz - Power Factor Controller - - 1.12 mA Yes Through Hole ESIP-16D 16 16.59 x 2.06 x 8.25mm 8.25mm 16.59mm 15 V
RS Stock No. 172-3304
Mfr. Part No.NCP1622BECSNT1G
$0.615
Each (On a Reel of 3000)
units
50 kHz 70µA Power Factor Controller 277µA 42µA 800 mA Yes Surface Mount TSOP 6 3.1 x 1.7 x 1mm 1mm 3.1mm 30 V
RS Stock No. 145-2882
Mfr. Part No.MC34262PG
$0.994
Each (In a Tube of 50)
units
50 kHz 0.4mA - 200mA 200mA 20 mA Yes Through Hole PDIP 8 10.02 x 7.11 x 5.33mm 5.33mm 10.02mm 28 V
RS Stock No. 181-1883
Mfr. Part No.FPAM50LH60G
$60.867
Each (In a Tube of 48)
units
20 kHz - Power Factor Pre-Regulator Circuit - 1mA 2.65 mA - Through Hole S32EA 32 60.5 x 31.5 x 7.3mm 7.3mm 60.5mm 253 Vrms
New
RS Stock No. 218-4856
Mfr. Part No.STNRG012TR
$3.271
Each (On a Reel of 1000)
units
50 kHz 2mA Digital -1.1mA 1.3mA 2 mA - - SoC 20 - - - 19 V
RS Stock No. 181-1941
Mfr. Part No.FPAM30LH60
$61.96
Each
units
20 kHz - Power Factor Pre-Regulator Circuit - 1mA 2.65 mA - Through Hole S32EA 32 60.5 x 31.5 x 7.3mm 7.3mm 60.5mm 253 Vrms
RS Stock No. 802-1759
Mfr. Part No.NIS5132MN2TXG
$1.364
Each (In a Pack of 10)
units
1 MHz - Power Factor Controller - -25µA 3.6 A - Surface Mount DFN 10 3 x 3 x 0.95mm 0.95mm 3mm 25 V
RS Stock No. 802-3171
Mfr. Part No.NCP1608BDR2G
$0.854
Each (In a Pack of 20)
units
70 kHz 35µA Power Factor Controller 500mA 800mA 20 mA Yes Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 20 V
RS Stock No. 195-2491
Mfr. Part No.NIS5020MT2TXG
$2.06
Each (In a Pack of 25)
units
- - Power Factor Controller - - 10 A - Surface Mount WDFN 10 3 x 3 x 0.75mm 0.75mm 3mm 18 V
RS Stock No. 175-1120
Mfr. Part No.STNRG011TR
$5.14
Each (In a Pack of 5)
units
- - Power Factor Controller - - - - - - - - - - -
RS Stock No. 170-9336
Mfr. Part No.MP44010HS-LF
$2.473
Each (In a Tube of 100)
units
70 kHz 40µA Power Factor Controller -1mA 5.5mA 2.5 mA Yes Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 22 V
RS Stock No. 121-8960
Mfr. Part No.UC3854AN
$7.06
Each (In a Tube of 25)
units
115 kHz 0.3mA Power Factor Pre-Regulator Circuit 14µA - 18 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 20 V
RS Stock No. 146-4522
Mfr. Part No.PFS7625L
$4.116
Each (In a Tube of 30)
units
123 kHz - Power Factor Controller - - 1.05 mA Yes Through Hole ESIP-16G 16 16.59 x 2.06 x 8.25mm 8.25mm 16.59mm 15 V
RS Stock No. 786-6501
Mfr. Part No.NCP1611BDR2G
$1.292
Each (In a Pack of 5)
units
20 kHz 50µA Power Factor Controller 500mA 800mA 3 mA Yes Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 18.2 V
RS Stock No. 121-9844
Mfr. Part No.NCP1605DR2G
$1.295
Each (On a Reel of 2500)
units
250 kHz 1mA Power Factor Controller 500mA 800mA 7 mA Yes Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm 16 V