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. 145-3378
Mfr. Part No.MC33368DG
$2.40
Each (In a Tube of 48)
units
50 kHz 25mA Power Factor Controller 30µA 30µA 20 mA Yes Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm 16 V
RS Stock No. 661-6005
Mfr. Part No.UCC3817N
$5.43
Each
units
115 kHz 0.15mA Power Factor Pre-Regulator Circuit - - 20 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 17 V
RS Stock No. 166-1622
Mfr. Part No.FAN6982MY
$0.798
Each (On a Reel of 2500)
units
75 kHz 80µA Power Factor Controller 50µA -35µA - - Surface Mount SOP 14 8.75 x 4 x 1.5mm 1.5mm 8.75mm 22 V
RS Stock No. 786-8727
Mfr. Part No.MC33368DG
$2.74
Each (In a Pack of 2)
units
50 kHz 25mA Power Factor Controller 30µA 30µA 20 mA Yes Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm 16 V
RS Stock No. 178-4353
Mfr. Part No.NCP1622DCCSNT1G
$0.583
Each (On a Reel of 3000)
units
50 kHz 70µA Power Factor Controller 277µA 42µA 3 mA - Surface Mount TSOP 6 3.1 x 1.7 x 1mm 1mm 3.1mm 30 V
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. 121-6379
Mfr. Part No.NCP1654BD133R2G
$0.669
Each (On a Reel of 2500)
units
146 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. 661-5175
Mfr. Part No.UC2854N
$5.91
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. 169-5601
Mfr. Part No.UCC2818AN
$6.07
Each (In a Tube of 25)
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. 168-5787
Mfr. Part No.L4981BD
$3.45
Each (In a Tube of 40)
units
115 kHz 0.3mA Power Factor Controller 10mA 20000µA 16 mA - Surface Mount SOIC 20 13 x 7.6 x 2.35mm 2.35mm 13mm 19.5 V
RS Stock No. 178-4323
Mfr. Part No.NCL30060B3DR2G
$0.919
Each (On a Reel of 2500)
units
60 kHz 19mA Power Factor Controller 250mA 400mA 1700 μA - Surface Mount SOIC 7 5 x 4 x 1.5mm 1.5mm 5mm 13.75 V
RS Stock No. 404-342
Mfr. Part No.UCC28019D
$1.792
Each (In a Pack of 5)
units
68.3 kHz 0.1mA - -0.038mA 38µA 10 mA Yes Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 1.58mm 4.9mm 22 V
RS Stock No. 188-8553
Mfr. Part No.L6563HTR
$1.78
Each (In a Pack of 10)
units
70 kHz 150µA Power Factor Controller 4mA 4.5mA 6 mA - Surface Mount SO 16 10 x 4 x 1.5mm 1.5mm 10mm 22.5 V
RS Stock No. 146-4570
Mfr. Part No.PFS7629H
$5.28
Each (In a Pack of 5)
units
123 kHz - Power Factor Controller - - 1.38 mA Yes Through Hole ESIP-16D 16 16.59 x 2.06 x 8.25mm 8.25mm 16.59mm 15 V
RS Stock No. 181-1937
Mfr. Part No.FPAB20BH60B
$27.77
Each
units
20 kHz - Power Factor Pre-Regulator Circuit - 5mA 26 mA - Through Hole SPMIC 27 44.2 x 27 x 5.7mm 5.7mm 44.2mm 253 Vrms
RS Stock No. 162-7991
Mfr. Part No.UCC28019AD
$1.881
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
RS Stock No. 169-5607
Mfr. Part No.UCC3817N
$4.97
Each (In a Tube of 25)
units
115 kHz 0.15mA Power Factor Pre-Regulator Circuit - - 20 mA Yes Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 17 V
RS Stock No. 188-8276
Mfr. Part No.L6563HTR
$0.992
Each (On a Reel of 2500)
units
70 kHz 150µA Power Factor Controller 4mA 4.5mA 6 mA - Surface Mount SO 16 10 x 4 x 1.5mm 1.5mm 10mm 22.5 V
RS Stock No. 181-1931
Mfr. Part No.FPDB60PH60B
$53.89
Each
units
20 kHz - Power Factor Pre-Regulator Circuit - 5mA 26 mA - Through Hole SPMHC 27 44.2 x 27 x 5.7mm 5.7mm 44.2mm 264 Vrms
RS Stock No. 145-4462
Mfr. Part No.FAN9672Q
$5.35
Each (In a Tray of 250)
units
40 kHz 80µA Power Factor Controller 50µA -40µA, -35 μA 7 mA Yes Surface Mount LQFP 32 9 x 7 x 1.45mm 1.45mm 9mm 30 V