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. 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. 786-6501
Mfr. Part No.NCP1611BDR2G
HK$8.18
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. 786-6507
Mfr. Part No.NCP1605DR2G
HK$16.80
Each (In a Pack of 5)
units
250 kHz 1mA Power Factor Controller 500mA 800mA 7 mA Yes Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm 16 V
RS Stock No. 181-1943
Mfr. Part No.FPAM50LH60G
HK$415.98
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. 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. 786-6526
Mfr. Part No.NCP1654BD133R2G
HK$9.072
Each (On a Tape of 5)
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. 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. 195-2490
Mfr. Part No.NIS5020MT2TXG
HK$6.829
Each (On a Reel of 3000)
units
- - Power Factor Controller - - 10 A - Surface Mount WDFN 10 3 x 3 x 0.75mm 0.75mm 3mm 18 V
RS Stock No. 178-4633
Mfr. Part No.NCL30060B3DR2G
HK$7.406
Each (In a Pack of 10)
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. 181-1939
Mfr. Part No.FPAB30BH60B
HK$142.05
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. 195-2491
Mfr. Part No.NIS5020MT2TXG
HK$13.66
Each (In a Pack of 25)
units
- - Power Factor Controller - - 10 A - Surface Mount WDFN 10 3 x 3 x 0.75mm 0.75mm 3mm 18 V
RS Stock No. 181-1879
Mfr. Part No.FPDB60PH60B
HK$247.581
Each (In a Tube of 60)
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. 516-5398
Mfr. Part No.MC33262PG
HK$8.89
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. 865-1224
Mfr. Part No.FAN9672Q
HK$45.465
Each (In a Pack of 2)
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. 121-6379
Mfr. Part No.NCP1654BD133R2G
HK$4.252
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. 786-6510
Mfr. Part No.NCP1653ADR2G
HK$14.018
Each (In a Pack of 5)
units
73.7 kHz 1.5mA Power Factor Controller 100mA 100mA 6 mA - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 14.5 V
RS Stock No. 195-2493
Mfr. Part No.NIS5820MT1TXG
HK$11.278
Each (In a Pack of 25)
units
- - Power Factor Controller - - 8 A - Surface Mount WDFN 10 3 x 3 x 0.75mm 0.75mm 3mm 18 V
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. 181-1880
Mfr. Part No.FPAB20BH60B
HK$155.075
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. 195-2489
Mfr. Part No.NIS5020MT1TXG
HK$12.514
Each (In a Pack of 25)
units
- - Power Factor Controller - - 10 A - Surface Mount WDFN 10 3 x 3 x 0.75mm 0.75mm 3mm 18 V