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$49.27
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. 162-9510
Mfr. Part No.NCP1611BDR2G
HK$2.73
Each (On a Reel of 2500)
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. 162-6031
Mfr. Part No.UC2854BN
HK$40.984
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. 786-6501
Mfr. Part No.NCP1611BDR2G
HK$7.58
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. 188-8553
Mfr. Part No.L6563HTR
HK$10.846
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. 161-2616
Mfr. Part No.NCP1631DR2G
HK$9.517
Each (On a Reel of 2500)
units
130 kHz 100µA Power Factor Controller 500mA 800mA 7 mA Yes Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm 20 V
RS Stock No. 805-0343
Mfr. Part No.FAN6982MY
HK$11.546
Each (In a Pack of 5)
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. 181-1881
Mfr. Part No.FPAB30BH60B
HK$115.721
Each (In a Tube of 60)
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. 802-3171
Mfr. Part No.NCP1608BDR2G
HK$4.913
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. 181-1882
Mfr. Part No.FPAM30LH60
HK$284.599
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
RS Stock No. 163-2259
Mfr. Part No.NIS5132MN2TXG
HK$3.451
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. 145-4462
Mfr. Part No.FAN9672Q
HK$31.01
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
RS Stock No. 162-6057
Mfr. Part No.UC3855BDW
HK$98.18
Each (In a Tube of 25)
units
230 kHz 0.15mA Power Factor Pre-Regulator Circuit - 1.5mA 25 mA Yes Surface Mount SOIC 20 12.8 x 7.52 x 2.35mm 2.35mm 12.8mm -
RS Stock No. 146-4529
Mfr. Part No.PFS7629H
HK$32.085
Each (In a Tube of 30)
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. 661-5166
Mfr. Part No.UC2854DW
HK$31.12
Each
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. 172-3304
Mfr. Part No.NCP1622BECSNT1G
HK$3.203
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. 825-5497
Mfr. Part No.UCC29910APW
HK$32.166
Each (In a Pack of 5)
units
106 kHz - Power Factor Controller - - 8 mA - Surface Mount TSSOP 14 5.1 x 4.5 x 1.05mm 1.05mm 5.1mm 3.6 V
RS Stock No. 809-5021
Mfr. Part No.FAN6961SZ
HK$5.531
Each (In a Pack of 10)
units
60 kHz 20µA Power Factor Controller 800µA 20µA 6 mA Yes Surface Mount SOP 8 5 x 4 x 1.5mm 1.5mm 5mm 30 V
RS Stock No. 166-2386
Mfr. Part No.FAN6961SZ
HK$2.256
Each (On a Reel of 2500)
units
60 kHz 20µA Power Factor Controller 800µA 20µA 6 mA Yes Surface Mount SOP 8 5 x 4 x 1.5mm 1.5mm 5mm 30 V