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. 165-7479
Mfr. Part No.L6562ADTR
£0.272
Each (On a Reel of 2500)
Units
- 0.03mA Power Factor Controller -5mA 4500µA 0.06 mA Yes Surface Mount SOIC 8 5 x 4 x 1.25mm 1.25mm 5mm 22.5 V
RS Stock No. 686-5008
Mfr. Part No.L6562ADTR
£0.288
Each (In a Pack of 5)
Units
- 0.03mA Power Factor Controller -5mA 4500µA 0.06 mA Yes Surface Mount SOIC 8 5 x 4 x 1.25mm 1.25mm 5mm 22.5 V
RS Stock No. 168-5829
Mfr. Part No.L6562AD
£0.271
Each (In a Tube of 100)
Units
- 0.03mA Power Factor Controller -5mA 4500µA 0.06 mA Yes Surface Mount SOIC 8 5 x 4 x 1.25mm 1.25mm 5mm 22.5 V
RS Stock No. 919-8819
Mfr. Part No.TDA48632GXUMA2
BrandInfineon
£0.348
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. 445-832
Mfr. Part No.L6562AD
£0.286
Each (In a Pack of 5)
Units
- 0.03mA Power Factor Controller -5mA 4500µA 0.06 mA Yes Surface Mount SOIC 8 5 x 4 x 1.25mm 1.25mm 5mm 22.5 V
RS Stock No. 753-3223
Mfr. Part No.TDA48632GXUMA2
BrandInfineon
£0.77
Each (In a Pack of 5)
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. 516-5398
Mfr. Part No.MC33262PG
£0.76
Each
Units
- 0.25mA Power Factor Controller 0.01mA 500000µA 30 mA Yes Through Hole PDIP 8 10.16 x 6.6 x 3.44mm 3.44mm 10.16mm -
RS Stock No. 145-2787
Mfr. Part No.MC33262PG
£0.625
Each (In a Tube of 50)
Units
- 0.25mA Power Factor Controller 0.01mA 500000µA 30 mA Yes Through Hole PDIP 8 10.16 x 6.6 x 3.44mm 3.44mm 10.16mm -
RS Stock No. 168-7319
Mfr. Part No.L6562N
£0.682
Each (In a Tube of 50)
Units
- 0.04mA - 10mA 10000µA 16 mA - Through Hole PDIP 8 10.92 x 6.6 x 3.32mm 3.32mm 10.92mm 22 V
RS Stock No. 121-9158
Mfr. Part No.UCC3818D
£2.409
Each (In a Tube of 40)
Units
115 kHz 0.15mA Power Factor Pre-Regulator Circuit - - 20 mA Yes Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm 17 V
RS Stock No. 661-6014
Mfr. Part No.UCC3818D
£2.89
Each
Units
115 kHz 0.15mA Power Factor Pre-Regulator Circuit - - 20 mA Yes Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm 17 V
RS Stock No. 661-5162
Mfr. Part No.UC2854BN
£4.18
Each
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. 162-6031
Mfr. Part No.UC2854BN
£3.476
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. 920-8913
Mfr. Part No.L4981AD
£2.132
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. 168-5787
Mfr. Part No.L4981BD
£1.88
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. 379-987
Mfr. Part No.L4981BD
£2.22
Each
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. 714-7844
Mfr. Part No.L4981AD
£2.52
Each
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. 686-5005
Mfr. Part No.L6562DTR
£0.136
Each (In a Pack of 5)
Units
- 0.04mA Power Factor Controller 10mA 10000µA 16 mA - Surface Mount SOIC 8 5 x 4 x 1.25mm 1.25mm 5mm 22 V
RS Stock No. 831-2718
Mfr. Part No.IR1155STRPBF
BrandInfineon
£1.285
Each (In a Pack of 2)
Units
200 kHz 175µA Power Factor Controller 90µA -20µA 13 mA - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 19 V
RS Stock No. 168-5788
Mfr. Part No.L6562D
£0.368
Each (In a Tube of 100)
Units
- 0.04mA Power Factor Controller 10mA 10000µA 16 mA - Surface Mount SOIC 8 5 x 4 x 1.25mm 1.25mm 5mm 22 V