PFC (Power Factor Correction)

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Mode	Frequency - Switching	Current - Startup	Voltage - Supply	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package

NCP1937B1DR2G IC PFC CTRLR CRM 20SOIC onsemi	4,963 In Stock 27,500 Factory	1 : ¥19.04000 Cut Tape (CT) 2,500 : ¥7.98018 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Critical Conduction (CRM)	-	20 mA	9V ~ 30V	-40°C ~ 125°C	Surface Mount	20-LSOP (0.154", 3.90mm Width), 17 Leads	20-SOIC
NCP1937B3DR2G IC PFC CTRLR CRM 20SOIC onsemi	2,495 In Stock 15,000 Factory	1 : ¥18.53000 Cut Tape (CT) 2,500 : ¥7.76021 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Critical Conduction (CRM)	-	20 mA	9V ~ 30V	-40°C ~ 125°C	Surface Mount	20-LSOP (0.154", 3.90mm Width), 17 Leads	20-SOIC
NCP1937C61DR2G IC PFC CTRLR CRM 20SOIC onsemi	5,000 In Stock	1 : ¥19.04000 Cut Tape (CT) 2,500 : ¥8.38237 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Critical Conduction (CRM)	-	20 mA	9V ~ 30V	-40°C ~ 125°C	Surface Mount	20-LSOP (0.154", 3.90mm Width), 17 Leads	20-SOIC
NCP1937C4DR2G IC PFC CTRLR CRM 20SOIC onsemi	2,500 In Stock	1 : ¥19.04000 Cut Tape (CT) 2,500 : ¥8.38237 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Critical Conduction (CRM)	-	20 mA	9V ~ 30V	-40°C ~ 125°C	Surface Mount	20-LSOP (0.154", 3.90mm Width), 17 Leads	20-SOIC
NCP1937A2DR2G IC PFC CTRLR CRM 20SOIC onsemi	2,450 In Stock	1 : ¥19.04000 Cut Tape (CT) 2,500 : ¥7.98018 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Critical Conduction (CRM)	-	20 mA	9V ~ 30V	-40°C ~ 125°C	Surface Mount	20-LSOP (0.154", 3.90mm Width), 17 Leads	20-SOIC
NCP1937A3DR2G IC PFC CTRLR CRM 20SOIC onsemi	0 In Stock 550 Marketplace Check Lead Time	1 : ¥17.90000 Cut Tape (CT) 2,500 : ¥8.15132 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel® Bulk	Active	Critical Conduction (CRM)	-	20 mA	9V ~ 30V	-40°C ~ 125°C	Surface Mount	20-LSOP (0.154", 3.90mm Width), 17 Leads	20-SOIC

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PFC (Power Factor Correction)

Power Factor Correction (PFC) is a semiconductor device designed to align the phase angle to approach zero between the voltage and current in an AC circuit. The different modes are average current, boundary conduction, continuous conduction, critical conduction, current controlled frequency foldback, discontinuous, and discontinuous conduction with a frequency switching of adjustable and 6kHz to 1.7MHz.