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. 146-4561
Mfr. Part No.PFS7636H
SGD4.936
Each (In a Pack of 5)
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. 172-8988
Mfr. Part No.NCP1632DR2G
SGD2.26
Each (In a Pack of 10)
units
130 kHz 100µA Power Factor Controller 500mA 800mA 7 mA - Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm 10.4 V
RS Stock No. 181-1941
Mfr. Part No.FPAM30LH60
SGD54.86
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. 919-8819
Mfr. Part No.TDA48632GXUMA2
BrandInfineon
SGD0.716
Each (On a Reel of 2500)
units
- 100µA Power Factor Controller -6mA 30mA 20 mA - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 22 V
RS Stock No. 145-7284
Mfr. Part No.UCC28060D
SGD4.486
Each (In a Tube of 40)
units
45 kHz 0.1mA Power Factor Controller 1000mA 1800000µA 8 mA Yes Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm 21 V
RS Stock No. 145-2882
Mfr. Part No.MC34262PG
SGD0.932
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. 661-5175
Mfr. Part No.UC2854N
SGD6.69
Each
units
118 kHz 1.5mA Power Factor Pre-Regulator Circuit 14µA - 10 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 35 V
RS Stock No. 175-1120
Mfr. Part No.STNRG011TR
SGD4.70
Each (In a Pack of 5)
units
- - Power Factor Controller - - - - - - - - - - -
RS Stock No. 181-1943
Mfr. Part No.FPAM50LH60G
SGD72.52
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. 122-0080
Mfr. Part No.MC33262DG
SGD0.741
Each (In a Tube of 98)
units
- 0.25mA - 0.01mA 500000µA 30 mA Yes Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm -
RS Stock No. 163-2259
Mfr. Part No.NIS5132MN2TXG
SGD0.645
Each (On a Reel of 3000)
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. 188-8275
Mfr. Part No.L6562ATDTR
SGD0.61
Each (On a Reel of 2500)
units
70 kHz 60µA Power Factor Controller -5mA 4.5mA 5.5 mA - Surface Mount SO 8 5 x 4 x 1.65mm 1.65mm 5mm 22.5 V
RS Stock No. 168-5820
Mfr. Part No.L6562AN
SGD1.229
Each (In a Tube of 50)
units
- 0.03mA Power Factor Controller -5mA 4500µA 0.06 mA Yes Through Hole PDIP 8 10.92 x 6.6 x 3.32mm 3.32mm 10.92mm 22.5 V
RS Stock No. 922-3467
Mfr. Part No.UC3854BDW
SGD5.487
Each (In a Tube of 40)
units
- - - - - - - - - - - - - -
RS Stock No. 146-4554
Mfr. Part No.PFS7625L
SGD4.38
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. 661-5661
Mfr. Part No.UCC2818AN
SGD7.32
Each
units
115 kHz 0.15mA Power Factor Pre-Regulator Circuit 900000µA 1200mA 6 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 18 V
RS Stock No. 121-9151
Mfr. Part No.UC2854DW
SGD4.44
Each (In a Tube of 40)
units
118 kHz 1.5mA Power Factor Pre-Regulator Circuit 14µA - 10 mA Yes Surface Mount SOIC 16 10.28 x 7.52 x 2.35mm 2.35mm 10.28mm 35 V
RS Stock No. 786-6529
Mfr. Part No.NCP1654BD65R2G
SGD1.57
Each (In a Pack of 5)
units
72 kHz 75µA Power Factor Controller 100mA 100mA 6 mA - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 20 V
RS Stock No. 162-7991
Mfr. Part No.UCC28019AD
SGD1.852
Each (In a Tube of 75)
units
71 kHz 200µA Power Factor Controller -300µA 38µA 10 mA Yes Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 21 V
New
RS Stock No. 218-4856
Mfr. Part No.STNRG012TR
SGD3.065
Each (On a Reel of 1000)
units
50 kHz 2mA Digital -1.1mA 1.3mA 2 mA - - SoC 20 - - - 19 V