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NCP1342 Quasi-Resonant Flyback Controllers

onsemi NCP1342 Quasi-Resonant Flyback Controllers are highly integrated High-Frequency PWM (Pulse Width Modulation) Controllers intended to simplify the design of high-performance off-line power converters. With an integrated active X2 capacitor-discharge feature, the NCP1342 devices enable no-load power consumption below 30mW.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CHF) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	Topology	Number of Outputs	Switching Frequency	Output Voltage	Output Current	Minimum Operating Temperature	Maximum Operating Temperature	Mounting Style	Package/Case	Packaging
	Switching Controllers HIGH FREQUENCY QUAS I-RESO NCP1342AMDCDAD1R2G onsemi 1: CHF 1.12 4’578In Stock	Mfr. Part No. NCP1342AMDCDAD1R2G Mouser Part No 863-NCP1342AMDCDAD2G	onsemi	Switching Controllers HIGH FREQUENCY QUAS I-RESO Learn More about onsemi ncp1342 flyback controller	Datasheet	4’578In Stock	Cut Tape CHF 1.12 CHF 0.813 CHF 0.73 CHF 0.646 View Reel CHF 0.538 CHF 0.605 CHF 0.58 CHF 0.555 CHF 0.538 MouseReel Available	Min.: 1 Mult.: 1 : 2’500			Flyback	1 Output	3.9 kHz		800 mA	- 40 C	+ 125 C	SMD/SMT	SOIC-9	Reel, Cut Tape, MouseReel
	Switching Controllers HIGH FREQUENCY QUASI-RESONANT FLYBACK CONTROLLER onsemi NCP1342ENDCEAD1R2G NCP1342ENDCEAD1R2G onsemi 1: CHF 1.01 2’390In Stock	Mfr. Part No. NCP1342ENDCEAD1R2G Mouser Part No 863-P1342ENDCEAD1R2G	onsemi	Switching Controllers HIGH FREQUENCY QUASI-RESONANT FLYBACK CONTROLLER Learn More about onsemi ncp1342 flyback controller	Datasheet	2’390In Stock	Cut Tape CHF 1.01 CHF 0.732 CHF 0.663 CHF 0.586 Reel CHF 0.49 View CHF 0.549 CHF 0.527 CHF 0.518 CHF 0.478	Min.: 1 Mult.: 1 : 2’500			Flyback	1 Output	25 kHz	12 V	800 mA	- 40 C	+ 125 C	SMD/SMT		Reel, Cut Tape
	Switching Controllers HIGH FREQUENCY QUASI-RESO onsemi NCP1342BMDCDD1R2G NCP1342BMDCDD1R2G onsemi 1: CHF 1.05 4’860In Stock NRND	Mfr. Part No. NCP1342BMDCDD1R2G Mouser Part No 863-CP1342BMDCDD1R2G NRND	onsemi	Switching Controllers HIGH FREQUENCY QUASI-RESO Learn More about onsemi ncp1342 flyback controller	Datasheet	4’860In Stock	Cut Tape CHF 1.05 CHF 0.756 CHF 0.685 CHF 0.607 View Reel CHF 0.507 CHF 0.569 CHF 0.546 CHF 0.537 CHF 0.507	Min.: 1 Mult.: 1 Max.: 2’500 : 2’500												Reel, Cut Tape
	Switching Controllers HIGH FREQUENCY QUASI-RESONANT FLYBACK CONTROLLER NCP1342ANDCDAD1R2G onsemi 1: CHF 1.11 2’085In Stock	Mfr. Part No. NCP1342ANDCDAD1R2G Mouser Part No 863-P1342ANDCDAD1R2G	onsemi	Switching Controllers HIGH FREQUENCY QUASI-RESONANT FLYBACK CONTROLLER Learn More about onsemi ncp1342 flyback controller	Datasheet	2’085In Stock	Cut Tape CHF 1.11 CHF 0.805 CHF 0.729 CHF 0.645 Reel CHF 0.538 View CHF 0.604 CHF 0.579 CHF 0.554 CHF 0.526	Min.: 1 Mult.: 1 : 2’500			Flyback	1 Output	500 kHz			- 40 C	+ 125 C	SMD/SMT	SOIC-9	Reel, Cut Tape
	Switching Controllers HIGH FREQUENCY QUASI NCP1342AMAACD1R2G onsemi 1: CHF 1.12 3’362In Stock	Mfr. Part No. NCP1342AMAACD1R2G Mouser Part No 863-NCP1342AMAACD1RG	onsemi	Switching Controllers HIGH FREQUENCY QUASI Learn More about onsemi ncp1342 flyback controller	Datasheet	3’362In Stock	Cut Tape CHF 1.12 CHF 0.813 CHF 0.74 CHF 0.654 Reel CHF 0.547 View CHF 0.613 CHF 0.589 CHF 0.562 CHF 0.534 MouseReel Available	Min.: 1 Mult.: 1 : 2’500			Flyback	1 Output				- 40 C	+ 125 C	SMD/SMT	SOIC-9	Reel, Cut Tape, MouseReel
	Switching Controllers HIGH FREQUENCY QUASI-RESONANT FLYBACK CONTROLLER NCP1342DADBDGD1R2G onsemi 1: CHF 1.10 2’532In Stock	Mfr. Part No. NCP1342DADBDGD1R2G Mouser Part No 863-P1342DADBDGD1R2G	onsemi	Switching Controllers HIGH FREQUENCY QUASI-RESONANT FLYBACK CONTROLLER Learn More about onsemi ncp1342 flyback controller	Datasheet	2’532In Stock	Cut Tape CHF 1.10 CHF 0.803 CHF 0.727 CHF 0.642 Reel CHF 0.536 View CHF 0.602 CHF 0.578 CHF 0.551 CHF 0.523	Min.: 1 Mult.: 1 : 2’500			Flyback	1 Output	500 kHz		800 mA	- 40 C	+ 125 C	SMD/SMT	SOIC-9	Reel, Cut Tape
	Switching Controllers HIGH FREQUENCY QUASI-RESO NCP1342DADBDD1R2G onsemi 1: CHF 1.10 526In Stock NRND	Mfr. Part No. NCP1342DADBDD1R2G Mouser Part No 863-NCP1342DADBDD1R2 NRND	onsemi	Switching Controllers HIGH FREQUENCY QUASI-RESO Learn More about onsemi ncp1342 flyback controller	Datasheet	526In Stock	Cut Tape CHF 1.10 CHF 0.803 CHF 0.727 CHF 0.642 Reel CHF 0.536 View CHF 0.602 CHF 0.578 CHF 0.551 CHF 0.523 MouseReel Available	Min.: 1 Mult.: 1 : 2’500			Flyback	1 Output	25 kHz	12 V	800 mA	- 40 C	+ 125 C	SMD/SMT	SOIC-9	Reel, Cut Tape, MouseReel
	Switching Controllers HIGH FREQUENCY QUA NCP1342AMDCCDR2G onsemi 1: CHF 1.02 2’481Expected 2/8/2027	Mfr. Part No. NCP1342AMDCCDR2G Mouser Part No 863-NCP1342AMDCCDR2G	onsemi	Switching Controllers HIGH FREQUENCY QUA Learn More about onsemi ncp1342 flyback controller	Datasheet	2’481Expected 2/8/2027	Cut Tape CHF 1.02 CHF 0.745 CHF 0.675 CHF 0.596 View Reel CHF 0.497 CHF 0.559 CHF 0.536 CHF 0.512 CHF 0.497 MouseReel Available	Min.: 1 Mult.: 1 : 2’500			Flyback	1 Output	25 kHz	12 V	800 mA	- 40 C	+ 125 C	SMD/SMT	SOIC-8	Reel, Cut Tape, MouseReel