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. 661-5162
Mfr. Part No.UC2854BN
HK$52.03
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
HK$44.205
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. 145-7284
Mfr. Part No.UCC28060D
HK$26.43
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. 121-8960
Mfr. Part No.UC3854AN
HK$39.711
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. 922-3467
Mfr. Part No.UC3854BDW
HK$32.322
Each (In a Tube of 40)
units
- - - - - - - - - - - - - -
RS Stock No. 620-0751
Mfr. Part No.UC3854BN
HK$46.306
Each (In a Pack of 5)
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. 922-3482
Mfr. Part No.UCC2818D
HK$31.899
Each (In a Tube of 40)
units
- - - - - - - - - - - - - -
RS Stock No. 661-5550
Mfr. Part No.UCC28070PW
HK$37.29
Each
units
10 → 300 kHz 20mA Power Factor Controller -0.03mA 30µA 20 mA Yes Surface Mount TSSOP 20 6.5 x 4.4 x 1.15mm 1.15mm 6.5mm 21 V
RS Stock No. 121-8962
Mfr. Part No.UC3854N
HK$31.72
Each (In a Tube of 25)
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. 660-8095
Mfr. Part No.UCC28061D
HK$34.05
Each
units
45 kHz 0.1mA Power Factor Controller -0.19mA 32µA 8 mA Yes Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm 21 V
RS Stock No. 121-8961
Mfr. Part No.UC3854BN
HK$39.711
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. 661-5392
Mfr. Part No.UC3854BDW
HK$41.60
Each
units
115 kHz 0.3mA Power Factor Pre-Regulator Circuit 14µA - 18 mA Yes Surface Mount SOIC 16 10.28 x 7.52 x 2.35mm 2.35mm 10.28mm 20 V
RS Stock No. 661-5661
Mfr. Part No.UCC2818AN
HK$38.95
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. 121-9158
Mfr. Part No.UCC3818D
HK$28.377
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. 162-7991
Mfr. Part No.UCC28019AD
HK$9.876
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. 162-6064
Mfr. Part No.UCC28019P
HK$13.133
Each (In a Tube of 50)
units
68.3 kHz 0.1mA Power Factor Controller -0.038mA 38µA 10 mA Yes Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 4.57mm 9.81mm 22 V
RS Stock No. 169-5530
Mfr. Part No.UCC28061D
HK$26.79
Each (In a Tube of 40)
units
45 kHz 0.1mA Power Factor Controller -0.19mA 32µA 8 mA Yes Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm 21 V
RS Stock No. 661-5175
Mfr. Part No.UC2854N
HK$37.46
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. 162-6032
Mfr. Part No.UC2854N
HK$29.438
Each (In a Tube of 25)
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. 145-5765
Mfr. Part No.UC3854DW
HK$26.44
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