Switching Controllers – Mouser Switzerland

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NCP125x Current-Mode PWM Controllers

onsemi NCP125x Current-Mode PWM Controllers are capable of delivering a rugged and high-performance offline power supply in a tiny TSOP-6 package. With a supply range up to 35V, onsemi NCP125x controller hosts a jittered 65kHz or 100kHz switching circuitry operated in peak current mode control. When the power on the secondary side starts to decrease, the controller automatically folds back its switching frequency down to a minimum level of 26kHz. As the power further goes down, the part enters a skip cycle while limiting the peak current.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CHF) Filter the results in the table by unit price based on your quantity.	Qty.	Topology	Number of Outputs	Switching Frequency	Duty Cycle - Max	Output Voltage	Output Current	Minimum Operating Temperature	Maximum Operating Temperature	Mounting Style	Package/Case	Packaging
Switching Controllers CURRENTMODE PWM CONTROLLER NCP12510BSN65T1G onsemi 1: 0.507 CHF 16 496In Stock	Mfr. Part No. NCP12510BSN65T1G Mouser Part No 863-NCP12510BSN65T1G	onsemi	Switching Controllers CURRENTMODE PWM CONTROLLER Learn More about onsemi NCP125x	Datasheet	16 496In Stock	Cut Tape 0.507 CHF 0.353 CHF 0.314 CHF 0.273 CHF Reel 0.22 CHF View 0.255 CHF 0.242 CHF 0.233 CHF 0.213 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000	Flyback	1 Output	65 kHz	84 %	12 V	500 mA	- 40 C	+ 125 C	SMD/SMT	SOT-23-6	Reel, Cut Tape, MouseReel
Switching Controllers CURRENTMODE PWM CONTROLLER NCP12510ASN65T1G onsemi 1: 0.539 CHF 2 913In Stock	Mfr. Part No. NCP12510ASN65T1G Mouser Part No 863-NCP12510ASN65T1G	onsemi	Switching Controllers CURRENTMODE PWM CONTROLLER Learn More about onsemi NCP125x	Datasheet	2 913In Stock	Cut Tape 0.539 CHF 0.38 CHF 0.339 CHF 0.295 CHF Reel 0.237 CHF View 0.273 CHF 0.261 CHF 0.25 CHF 0.23 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000	Flyback	1 Output	65 kHz	84 %	12 V	500 mA	- 40 C	+ 125 C	SMD/SMT	SOT-23-6	Reel, Cut Tape, MouseReel
Switching Controllers ACDC SWITCH OCP AUTO NCP1250BSN65T1G onsemi 1: 0.548 CHF 23 043In Stock	Mfr. Part No. NCP1250BSN65T1G Mouser Part No 863-NCP1250BSN65T1G	onsemi	Switching Controllers ACDC SWITCH OCP AUTO Learn More about onsemi NCP125x	Datasheet	23 043In Stock	Cut Tape 0.548 CHF 0.387 CHF 0.346 CHF 0.302 CHF View Reel 0.247 CHF 0.282 CHF 0.269 CHF 0.258 CHF 0.247 CHF MouseReel Available	Min.: 1 Mult.: 1 Max.: 3 000 : 3 000	Flyback	1 Output	65 kHz	84 %	7 V	500 mA	- 40 C	+ 125 C	SMD/SMT	TSOP-6	Reel, Cut Tape, MouseReel
Switching Controllers OCP AUTO OVP VCC LATCH NCP1251BSN65T1G onsemi 1: 0.588 CHF 6 532In Stock	Mfr. Part No. NCP1251BSN65T1G Mouser Part No 863-NCP1251BSN65T1G	onsemi	Switching Controllers OCP AUTO OVP VCC LATCH Learn More about onsemi NCP125x	Datasheet	6 532In Stock	Cut Tape 0.588 CHF 0.416 CHF 0.373 CHF 0.325 CHF Reel 0.267 CHF View 0.302 CHF 0.289 CHF 0.278 CHF 0.259 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000	Flyback	1 Output	65 kHz	84 %		500 mA	- 40 C	+ 125 C	SMD/SMT	TSOP-6	Reel, Cut Tape, MouseReel
Switching Controllers NCP1256B 65KHZ NCP1256BSN65T1G onsemi 1: 0.467 CHF 4 727In Stock NRND	Mfr. Part No. NCP1256BSN65T1G Mouser Part No 863-NCP1256BSN65T1G NRND	onsemi	Switching Controllers NCP1256B 65KHZ Learn More about onsemi NCP125x	Datasheet	4 727In Stock	Cut Tape 0.467 CHF 0.33 CHF 0.295 CHF 0.256 CHF Reel 0.206 CHF View 0.238 CHF 0.227 CHF 0.217 CHF 0.20 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000	Flyback	1 Output	65 kHz	83 %	12 V	500 mA	- 40 C	+ 125 C	SMD/SMT	SOT-23-6	Reel, Cut Tape, MouseReel
Switching Controllers CURRENT-MODE PWM CONTROLL NCP12510BSN100T1G onsemi 1: 0.523 CHF 310In Stock	Mfr. Part No. NCP12510BSN100T1G Mouser Part No 863-NCP12510BSN100T1	onsemi	Switching Controllers CURRENT-MODE PWM CONTROLL Learn More about onsemi NCP125x	Datasheet	310In Stock	Cut Tape 0.523 CHF 0.369 CHF 0.329 CHF 0.285 CHF View Reel 0.23 CHF 0.266 CHF 0.253 CHF 0.243 CHF 0.23 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000	Flyback	1 Output	100 kHz	84 %	12 V	500 mA	- 40 C	+ 125 C	SMD/SMT	TSOP-6	Reel, Cut Tape, MouseReel
Switching Controllers CURRENT-MODE PWM CONTROL NCP12510CSN65T1G onsemi 1: 0.507 CHF 4 125In Stock	Mfr. Part No. NCP12510CSN65T1G Mouser Part No 863-NCP12510CSN65T1G	onsemi	Switching Controllers CURRENT-MODE PWM CONTROL	Datasheet	4 125In Stock	Cut Tape 0.507 CHF 0.358 CHF 0.319 CHF 0.277 CHF Reel 0.223 CHF View 0.256 CHF 0.244 CHF 0.235 CHF 0.216 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000	Flyback	1 Output	65 kHz	84 %	12 V	500 mA	- 40 C	+ 125 C	SMD/SMT	TSOP-6	Reel, Cut Tape, MouseReel
Switching Controllers OCP AUTO OVP VCC LATCH NCP1251BSN100T1G onsemi 1: 0.684 CHF 1 135In Stock 3 000Expected 29/01/2027	Mfr. Part No. NCP1251BSN100T1G Mouser Part No 863-NCP1251BSN100T1G	onsemi	Switching Controllers OCP AUTO OVP VCC LATCH Learn More about onsemi NCP125x	Datasheet	1 135In Stock 3 000Expected 29/01/2027	Cut Tape 0.684 CHF 0.481 CHF 0.431 CHF 0.376 CHF View Reel 0.30 CHF 0.351 CHF 0.335 CHF 0.322 CHF 0.30 CHF MouseReel Available	Min.: 1 Mult.: 1 Max.: 3 000 : 3 000	Flyback	1 Output	100 kHz	84 %		500 mA	- 40 C	+ 125 C	SMD/SMT	TSOP-6	Reel, Cut Tape, MouseReel
Switching Controllers PWM Cntlr Crnt Mode NCP1251CSN65T1G onsemi 1: 0.563 CHF 3 534In Stock	Mfr. Part No. NCP1251CSN65T1G Mouser Part No 863-NCP1251CSN65T1G	onsemi	Switching Controllers PWM Cntlr Crnt Mode Learn More about onsemi NCP125x	Datasheet	3 534In Stock	Cut Tape 0.563 CHF 0.399 CHF 0.358 CHF 0.312 CHF Reel 0.256 CHF View 0.29 CHF 0.277 CHF 0.267 CHF 0.248 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000	Flyback	1 Output	65 kHz	84 %		500 mA	- 40 C	+ 125 C	SMD/SMT	TSOP-6	Reel, Cut Tape, MouseReel
Switching Controllers Current Mode PWM Offline Controller NCP1253BSN100T1G onsemi 1: 0.515 CHF 4 367In Stock	Mfr. Part No. NCP1253BSN100T1G Mouser Part No 863-NCP1253BSN100T1G	onsemi	Switching Controllers Current Mode PWM Offline Controller Learn More about onsemi NCP125x	Datasheet	4 367In Stock	Cut Tape 0.515 CHF 0.365 CHF 0.326 CHF 0.284 CHF View Reel 0.227 CHF 0.262 CHF 0.25 CHF 0.24 CHF 0.227 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000	Flyback	1 Output	100 kHz	84 %	12 V	500 mA	- 40 C	+ 125 C	SMD/SMT	TSOP-6	Reel, Cut Tape, MouseReel
Switching Controllers Current Mode PWM Offline Controller NCP1253BSN65T1G onsemi 1: 0.451 CHF 2 951In Stock	Mfr. Part No. NCP1253BSN65T1G Mouser Part No 863-NCP1253BSN65T1G	onsemi	Switching Controllers Current Mode PWM Offline Controller Learn More about onsemi NCP125x	Datasheet	2 951In Stock	Cut Tape 0.451 CHF 0.316 CHF 0.283 CHF 0.245 CHF Reel 0.197 CHF View 0.227 CHF 0.217 CHF 0.209 CHF 0.193 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000	Flyback	1 Output	65 kHz	84 %	12 V	500 mA	- 40 C	+ 150 C	SMD/SMT	TSOP-6	Reel, Cut Tape, MouseReel
Switching Controllers ACDC SWITCH OCP AUTO onsemi NCP1250BP65G NCP1250BP65G onsemi 1: 0.992 CHF 485In Stock	Mfr. Part No. NCP1250BP65G Mouser Part No 863-NCP1250BP65G	onsemi	Switching Controllers ACDC SWITCH OCP AUTO Learn More about onsemi NCP125x	Datasheet	485In Stock	0.992 CHF 0.717 CHF 0.649 CHF 0.573 CHF View 0.537 CHF 0.516 CHF 0.492 CHF 0.479 CHF 0.473 CHF	Min.: 1 Mult.: 1	Flyback	1 Output	65 kHz	84 %	7 V	500 mA	- 40 C	+ 125 C	SMD/SMT		Tube

NCP125x Current-Mode PWM Controllers

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