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Power Integrations TopSwitch®-HX Off-Line Switcher

Power Integrations’ TOPSwitch®-HX device cost-effectively incorporates a 700V power MOSFET, high voltage switched current source, PWM control, oscillator, thermal shutdown circuit, fault protection, and other control circuitry onto a monolithic device. The integrated off-line switcher features Power Integrations’ EcoSmart® technology that enables power consumption of less than 200mW at no load and maintains constant efficiency over the full line and load range. The TOPSwitch-HX family meets efficiency requirements for the new energy-efficient standards and enables the design of compact and cost-effective switching power supplies.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package/Case	Output Voltage	Output Power	Supply Voltage - Min	Supply Voltage - Max	Technology	Switching Frequency	Duty Cycle - Max	Operating Supply Current	Minimum Operating Temperature	Maximum Operating Temperature	Output Current	Series	Packaging
AC/DC Converters Int Off-Line Switchr 57/81W TOP255EN Power Integrations 1: 1,32 € 8.588In Stock	Mfr. Part No. TOP255EN Mouser Part No 869-TOP255EN	Power Integrations	AC/DC Converters Int Off-Line Switchr 57/81W	Datasheet	8.588In Stock	1,32 € 1,16 € 1,02 € 1,01 € View 0,98 € 0,894 € 0,861 €	Min.: 1 Mult.: 1	Through Hole	eSIP-7C	15 V	57 W	85 VAC	265 VAC	Si	132 kHz	83 %	1.3 mA	- 40 C	+ 150 C	100 mA	TOP255	Tube
AC/DC Converters Int Off-Line Switchr 10-13W PK 15-21W PK TOP252PN Power Integrations 1: 0,912 € 6.193In Stock	Mfr. Part No. TOP252PN Mouser Part No 869-TOP252PN	Power Integrations	AC/DC Converters Int Off-Line Switchr 10-13W PK 15-21W PK	Datasheet	6.193In Stock	0,912 € 0,877 € 0,748 € 0,734 € View 0,705 € 0,636 € 0,626 € 0,607 €	Min.: 1 Mult.: 1	Through Hole	DIP-8C	700 V	15 W	- 300 mV	9 V	Si	132 kHz	78 %		- 40 C	+ 150 C	680 mA	TOP252	Tube
AC/DC Converters Int Off-Line Switchr 148W/195W TOP258EN Power Integrations 1: 1,95 € 8.386In Stock	Mfr. Part No. TOP258EN Mouser Part No 869-TOP258EN	Power Integrations	AC/DC Converters Int Off-Line Switchr 148W/195W	Datasheet	8.386In Stock	1,95 € 1,66 € 1,48 € 1,44 € View 1,43 € 1,32 € 1,29 € 1,28 €	Min.: 1 Mult.: 1	Through Hole	eSIP-7C	12 V	148 W	85 VAC	265 VAC	Si	132 kHz	83 %	1.4 mA	- 40 C	+ 150 C		TOP258	Tube
AC/DC Converters Int Off-Line Switchr 171W/238W TOP259EN Power Integrations 1: 2,12 € 1.121In Stock	Mfr. Part No. TOP259EN Mouser Part No 869-TOP259EN	Power Integrations	AC/DC Converters Int Off-Line Switchr 171W/238W	Datasheet	1.121In Stock	2,12 € 1,81 € 1,61 € 1,57 € View 1,56 € 1,44 €	Min.: 1 Mult.: 1	Through Hole	eSIP-7C	15 V	171 W			Si	30 kHz	78 %	1 mA	- 40 C	+ 150 C		TOP259	Tube
AC/DC Converters Int Off-Line Switchr 13W/21W TOP252EN Power Integrations 1: 1,23 € 160In Stock	Mfr. Part No. TOP252EN Mouser Part No 869-TOP252EN	Power Integrations	AC/DC Converters Int Off-Line Switchr 13W/21W	Datasheet	160In Stock	1,23 € 1,08 € 1,05 € 0,869 € View 0,843 € 0,714 € 0,676 €	Min.: 1 Mult.: 1	Through Hole	eSIP-7C		13 W	85 VAC	265 VAC	Si	132 kHz	78 %		- 40 C	+ 150 C		TOP252	Tube
AC/DC Converters Int Off-Line Switchr 200W 275W TOP260EN Power Integrations 1: 2,80 € 512In Stock	Mfr. Part No. TOP260EN Mouser Part No 869-TOP260EN	Power Integrations	AC/DC Converters Int Off-Line Switchr 200W 275W	Datasheet	512In Stock	2,80 € 2,39 € 2,19 € 1,96 € View 1,85 € 1,82 €	Min.: 1 Mult.: 1	Through Hole	eSIP-7C	700 V	275 W	- 300 mV	9 V	Si	132 kHz	78 %		- 40 C	+ 150 C	9 A	TOP260	Tube
AC/DC Converters Int Off-Line Switchr 10-13W PK 15-21W PK TOP252GN-TL Power Integrations 1: 0,955 € 1.958In Stock	Mfr. Part No. TOP252GN-TL Mouser Part No 869-TOP252GN-TL	Power Integrations	AC/DC Converters Int Off-Line Switchr 10-13W PK 15-21W PK	Datasheet	1.958In Stock	Cut Tape 0,955 € 0,946 € 0,788 € 0,777 € Reel 0,671 € View 0,765 € 0,669 € 0,627 € MouseReel Available	Min.: 1 Mult.: 1 : 1.000	SMD/SMT	SMD-8C	700 V	15 W	- 300 mV	9 V	Si	132 kHz	78 %		- 40 C	+ 150 C	680 mA	TOP252	Reel, Cut Tape, MouseReel
AC/DC Converters Int Off-Line Switchr 29W/43W TOP253EN Power Integrations 1: 1,12 € 7.962In Stock	Mfr. Part No. TOP253EN Mouser Part No 869-TOP253EN	Power Integrations	AC/DC Converters Int Off-Line Switchr 29W/43W	Datasheet	7.962In Stock	1,12 € 1,08 € 0,929 € 0,886 € View 0,833 € 0,783 € 0,76 € 0,728 €	Min.: 1 Mult.: 1	Through Hole	eSIP-7C	700 V	43 W	- 300 mV	9 V	Si	132 kHz	78 %		- 40 C	+ 150 C	1.37 A	TOP253	Tube
AC/DC Converters Int Off-Line Switchr 86W/119W TOP256EN Power Integrations 1: 1,53 € 946In Stock	Mfr. Part No. TOP256EN Mouser Part No 869-TOP256EN	Power Integrations	AC/DC Converters Int Off-Line Switchr 86W/119W	Datasheet	946In Stock	1,53 € 1,48 € 1,26 € 1,23 € View 1,20 € 1,17 € 1,15 €	Min.: 1 Mult.: 1	Through Hole	eSIP-7C	15 V	86 W	85 VAC	265 VAC	Si	132 kHz	83 %	1.6 mA	- 40 C	+ 150 C	100 mA	TOP256	Tube
AC/DC Converters Int Off-Line Switchr 119W/157W TOP257EN Power Integrations 1: 1,74 € 738In Stock	Mfr. Part No. TOP257EN Mouser Part No 869-TOP257EN	Power Integrations	AC/DC Converters Int Off-Line Switchr 119W/157W	Datasheet	738In Stock	1,74 € 1,20 € 1,16 € 1,15 €	Min.: 1 Mult.: 1	Through Hole	eSIP-7C	12 V	119 W	85 VAC	265 VAC	Si	132 kHz	83 %	1.4 mA	- 40 C	+ 150 C		TOP257	Tube
AC/DC Converters Int Off-Line Switchr 171W/238W TOP259YN Power Integrations 1: 2,67 € 207In Stock 650Expected 10/26/2026	Mfr. Part No. TOP259YN Mouser Part No 869-TOP259YN	Power Integrations	AC/DC Converters Int Off-Line Switchr 171W/238W	Datasheet	207In Stock 650Expected 10/26/2026	2,67 € 2,54 € 2,20 € 2,06 € View 2,03 € 1,87 € 1,84 €	Min.: 1 Mult.: 1	Through Hole	TO-220-7C					Si				- 40 C	+ 150 C		TOP259	Tube
AC/DC Converters Int Off-Line Switchr 200W/275W TOP260YN Power Integrations 1: 2,90 € 415In Stock	Mfr. Part No. TOP260YN Mouser Part No 869-TOP260YN	Power Integrations	AC/DC Converters Int Off-Line Switchr 200W/275W	Datasheet	415In Stock	2,90 € 2,87 € 2,73 € 2,37 € 2,03 €	Min.: 1 Mult.: 1	Through Hole	TO-220-7	700 V	275 W	- 300 mV	9 V	Si	132 kHz	78 %		- 40 C	+ 150 C	9 A	TOP260	Tube
AC/DC Converters Int Off-Line Switchr 254W/333W TOP261EN Power Integrations 1: 2,65 € 41In Stock 960Expected 11/27/2026	Mfr. Part No. TOP261EN Mouser Part No 869-TOP261EN	Power Integrations	AC/DC Converters Int Off-Line Switchr 254W/333W	Datasheet	41In Stock 960Expected 11/27/2026	2,65 € 2,62 € 2,50 € 2,16 € View 2,04 € 2,02 € 1,86 €	Min.: 1 Mult.: 1	Through Hole	eSIP-7C	700 V	333 W	- 300 mV	9 V	Si	132 kHz	78 %		- 40 C	+ 150 C	11.1 A	TOP261	Tube
AC/DC Converters Int Off-Line Switchr 15-25W PK 25-38W PK TOP253GN-TL Power Integrations 1: 1,05 € 387In Stock 1.000On Order	Mfr. Part No. TOP253GN-TL Mouser Part No 869-TOP253GN-TL	Power Integrations	AC/DC Converters Int Off-Line Switchr 15-25W PK 25-38W PK	Datasheet	387In Stock 1.000On Order	Cut Tape 1,05 € 1,02 € 0,877 € 0,852 € Reel 0,74 € View 0,835 € 0,739 € 0,699 € MouseReel Available	Min.: 1 Mult.: 1 : 1.000	SMD/SMT	SMD-8C					Si				- 40 C	+ 150 C		TOP253	Reel, Cut Tape, MouseReel
AC/DC Converters Int Off-Line Switchr 15-25W PK 25-38W PK TOP253PN Power Integrations 1: 1,01 € 253In Stock	Mfr. Part No. TOP253PN Mouser Part No 869-TOP253PN	Power Integrations	AC/DC Converters Int Off-Line Switchr 15-25W PK 25-38W PK	Datasheet	253In Stock	1,01 € 0,963 € 0,826 € 0,813 € View 0,796 € 0,705 € 0,704 € 0,665 €	Min.: 1 Mult.: 1	Through Hole	DIP-8C		38 W			Si	132 kHz	83 %	1.3 mA	- 40 C	+ 150 C		TOP253	Tube
AC/DC Converters Int Off-Line Switchr 43W/62W TOP254EN Power Integrations 1: 1,22 € 472In Stock	Mfr. Part No. TOP254EN Mouser Part No 869-TOP254EN	Power Integrations	AC/DC Converters Int Off-Line Switchr 43W/62W	Datasheet	472In Stock	1,22 € 1,19 € 1,01 € 0,98 € View 0,963 € 0,851 € 0,814 €	Min.: 1 Mult.: 1	Through Hole	eSIP-7C	15 V	43 W	85 VAC	265 VAC	Si	132 kHz	83 %	1.3 mA	- 40 C	+ 150 C	100 mA	TOP254	Tube
AC/DC Converters Int Off-Line Switchr 254W/333W TOP261YN Power Integrations 1: 3,12 € 1.680Expected 10/8/2026	Mfr. Part No. TOP261YN Mouser Part No 869-TOP261YN	Power Integrations	AC/DC Converters Int Off-Line Switchr 254W/333W	Datasheet	1.680Expected 10/8/2026	3,12 € 3,10 € 2,90 € 2,52 € View 2,45 € 2,44 € 2,18 € 2,15 €	Min.: 1 Mult.: 1	Through Hole	TO-220-7	700 V	333 W	- 300 mV	9 V	Si	132 kHz	78 %		- 40 C	+ 150 C	11.1 A	TOP261	Tube

Power Integrations TopSwitch®-HX Off-Line Switcher

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