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InnoSwitch™3-AQ Switcher ICs

Power Integrations InnoSwitch™3-AQ Switcher ICs are CV/CC QR Flyback Switcher ICs integrated with 750V/900V/1700V switch and FluxLink™ feedback. These switcher ICs combine primary controllers, secondary controllers, and safety-rated feedback into a single IC. The InnoSwitch3-AQ switches offer protection features such as line over- and under-voltage protection, output over-voltage and over-current limiting, and over-temperature shutdown. These switcher ICs incorporate up to 95% efficiency across the full load range, <15mW no-load input power, and 30V to >1000V_DC wide input voltage range. Typical applications include traction inverter emergency power supply, high-voltage to low-voltage DC to DC converters, battery management systems, and onboard chargers.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CAD) 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	Topology	Technology	Switching Frequency	Operating Supply Current	Minimum Operating Temperature	Maximum Operating Temperature	Series	Qualification	Packaging
AC/DC Converters 60W 1700V INN3949FQ-MR Power Integrations 1: $21.54 575In Stock New Product	Mfr. Part # INN3949FQ-MR Mouser Part # 869-INN3949FQ-MR New Product	Power Integrations	AC/DC Converters 60W 1700V Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	575In Stock	Cut Tape $21.54 $16.86 $15.70 $14.43 Reel $14.24 View $13.81 $13.65 Quote	Min.: 1 Mult.: 1 : 300	SMD/SMT	InSOP-T28G	5 V to 24 V	60 W	40 V	1.2 kV	Flyback	SiC	25 kHz to 95 kHz		- 40 C	+ 150 C	InnoSwitch3-AQ		Reel, Cut Tape
AC/DC Converters 1700V 35W (40-1200VDC) INN3947CQ-MR Power Integrations 1: $13.82 88In Stock 600On Order New Product	Mfr. Part # INN3947CQ-MR Mouser Part # 869-INN3947CQ-MR New Product	Power Integrations	AC/DC Converters 1700V 35W (40-1200VDC) Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	88In Stock 600On Order On Order Ship Dates Mfr. #: INN3947CQ-MR Stock: 88 Can Ship Immediately On Order: 300 Expected 2026-11-04 300 Expected 2027-02-16 Factory Lead-Time: 11 Weeks	Cut Tape $13.82 $10.74 $9.98 $9.14 Reel $8.68 View $8.67 $8.57 Quote	Min.: 1 Mult.: 1 : 300	SMD/SMT	InSOP-24D	5 V to 24 V	35 W	40 V	1.2 kV	Flyback	SiC	25 kHz to 95 kHz		- 40 C	+ 150 C	InnoSwitch3-AQ		Reel, Cut Tape
AC/DC Converters 900V AEC-Q100 15W 5.72A 100mA 1.5A INN3996CQ-TL Power Integrations 1: $6.75 2,191In Stock	Mfr. Part # INN3996CQ-TL Mouser Part # 869-IN3996CQ-TL	Power Integrations	AC/DC Converters 900V AEC-Q100 15W 5.72A 100mA 1.5A Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	2,191In Stock	Cut Tape $6.75 $5.37 $4.95 $4.49 View Reel $4.03 $4.28 $4.13 $4.09 $4.03 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	SMD/SMT	InSOP-24D		20 W	30 VAC	925 VAC	Flyback	Si	25 kHz	200 uA	- 40 C	+ 125 C	InnoSwitch3-AQ	AEC-Q100	Reel, Cut Tape, MouseReel
AC/DC Converters 35W 1700V INN3947FQ-MR Power Integrations 1: $13.82 2In Stock 300Expected 2026-12-28 New Product	Mfr. Part # INN3947FQ-MR Mouser Part # 869-INN3947FQ-MR New Product	Power Integrations	AC/DC Converters 35W 1700V Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	2In Stock 300Expected 2026-12-28	Cut Tape $13.82 $10.74 $9.98 $9.14 Reel $8.67 $8.65	Min.: 1 Mult.: 1 : 300	SMD/SMT	InSOP-T28G	5 V to 24 V	35 W	40 V	1.2 kV	Flyback	SiC	25 kHz to 95 kHz		- 40 C	+ 150 C	InnoSwitch3-AQ		Reel, Cut Tape
AC/DC Converters 100W 900V INN3990CQ-TL Power Integrations 1: $12.86 1,602In Stock	Mfr. Part # INN3990CQ-TL Mouser Part # 869-INN3990CQ-TL	Power Integrations	AC/DC Converters 100W 900V Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	1,602In Stock	Cut Tape $12.86 $9.99 $9.27 $8.48 View Reel $7.42 $8.21 $8.08 $7.96 $7.42 Quote	Min.: 1 Mult.: 1 : 2,000	SMD/SMT	InSOP-24					Flyback	GaN					InnoSwitch3-AQ		Reel, Cut Tape
AC/DC Converters 85W 900V INN3999CQ-TL Power Integrations 1: $11.22 1,000In Stock	Mfr. Part # INN3999CQ-TL Mouser Part # 869-INN3999CQ-TL	Power Integrations	AC/DC Converters 85W 900V Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	1,000In Stock	Cut Tape $11.22 $8.68 $8.04 $7.34 View Reel $6.39 $6.97 $6.96 $6.84 $6.39 Quote	Min.: 1 Mult.: 1 : 2,000	SMD/SMT	InSOP-24					Flyback	GaN					InnoSwitch3-AQ		Reel, Cut Tape
AC/DC Converters 1700V 60W (40-1200VDC) INN3949CQ-TL Power Integrations 1: $21.57 576In Stock	Mfr. Part # INN3949CQ-TL Mouser Part # 869-INN3949CQ-TL	Power Integrations	AC/DC Converters 1700V 60W (40-1200VDC) Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	576In Stock	Cut Tape $21.57 $18.99 $17.96 $15.96 View Reel $13.61 $15.88 $15.36 $15.02 $13.61 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,000	SMD/SMT	InSOP-24D		70 W				Si	132 kHz	266 uA	- 40 C	+ 150 C	InnoSwitch3-AQ		Reel, Cut Tape, MouseReel
AC/DC Converters 750V 30W (30-550 VDC) INN3977CQ-TL Power Integrations 1: $6.75 428In Stock	Mfr. Part # INN3977CQ-TL Mouser Part # 869-INN3977CQ-TL	Power Integrations	AC/DC Converters 750V 30W (30-550 VDC) Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	428In Stock	Cut Tape $6.75 $5.99 $5.70 $4.98 View Reel $4.38 $4.87 $4.77 $4.39 $4.38 Quote	Min.: 1 Mult.: 1 : 2,000								Si					InnoSwitch3-AQ	AEC-Q100	Reel, Cut Tape
AC/DC Converters 1700V 35W (40-1200VDC) INN3947CQ-TL Power Integrations 1: $13.61 1,983Expected 2027-01-12	Mfr. Part # INN3947CQ-TL Mouser Part # 869-INN3947CQ-TL	Power Integrations	AC/DC Converters 1700V 35W (40-1200VDC) Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	1,983Expected 2027-01-12	Cut Tape $13.61 $10.58 $10.44 $10.38 View Reel $8.88 $9.17 $8.88 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,000	SMD/SMT	InSOP-24D		50 W				Si	132 kHz	266 uA	- 40 C	+ 150 C	InnoSwitch3-AQ		Reel, Cut Tape, MouseReel
AC/DC Converters 750V 30W (30-550 VDC) INN3977CQ0501-TL Power Integrations 2,000: $3.73 Non-Stocked Lead-Time 12 Weeks New Product	Mfr. Part # INN3977CQ0501-TL Mouser Part # 869-INN3977CQ0501-TL New Product	Power Integrations	AC/DC Converters 750V 30W (30-550 VDC)	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $3.73	Min.: 2,000 Mult.: 2,000 : 2,000	SMD/SMT	InSOP-24D						Si	25 kHz	200 uA	- 40 C	+ 150 C	InnoSwitch3-AQ		Reel
AC/DC Converters 750V 30W (30-550 VDC) INN3977CQ510-TL Power Integrations 2,000: $3.73 Non-Stocked Lead-Time 12 Weeks New Product	Mfr. Part # INN3977CQ510-TL Mouser Part # 869-INN3977CQ510-TL New Product	Power Integrations	AC/DC Converters 750V 30W (30-550 VDC)	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $3.73	Min.: 2,000 Mult.: 2,000 : 2,000	SMD/SMT	InSOP-24D						Si	25 kHz	200 uA	- 40 C	+ 150 C	InnoSwitch3-AQ		Reel
AC/DC Converters 100W 900V INN3990CQ-H100-TL Power Integrations 2,000: $7.04 Non-Stocked Lead-Time 12 Weeks New Product	Mfr. Part # INN3990CQ-H100-TL Mouser Part # 869-INN3990CQ-H100TL New Product	Power Integrations	AC/DC Converters 100W 900V	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $7.04	Min.: 2,000 Mult.: 2,000 : 2,000	SMD/SMT	InSOP-24D						Si	25 kHz	200 uA	- 40 C	+ 150 C	InnoSwitch3-AQ		Reel
AC/DC Converters 55W 900V INN3997CQ-H100-TL Power Integrations 2,000: $4.81 Non-Stocked Lead-Time 8 Weeks New Product	Mfr. Part # INN3997CQ-H100-TL Mouser Part # 869-INN3997CQ-H100TL New Product	Power Integrations	AC/DC Converters 55W 900V	Datasheet	Non-Stocked Lead-Time 8 Weeks	Reel $4.81	Min.: 2,000 Mult.: 2,000 : 2,000	SMD/SMT	InSOP-24D	5 V to 24 V	55 W	30 V	650 V	Flyback	GaN	25 kHz to 95 kHz	266 uA	- 40 C	+ 125 C	InnoSwitch3-AQ		Reel
AC/DC Converters 1700V 35W (40-1200VDC) INN3947CQ500-MR Power Integrations 300: $8.76 Non-Stocked New Product	Mfr. Part # INN3947CQ500-MR Mouser Part # 869-INN3947CQ500-MR New Product	Power Integrations	AC/DC Converters 1700V 35W (40-1200VDC) Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	Non-Stocked	Reel $8.76 $8.74 $8.64 Quote Quote	Min.: 300 Mult.: 300 : 300	SMD/SMT	InSOP-24D	5 V to 24 V	35 W	40 V	1.2 kV	Flyback	SiC	25 kHz to 95 kHz		- 40 C	+ 150 C	InnoSwitch3-AQ		Reel
AC/DC Converters 35W 1700V INN3947FQ-TL Power Integrations 1,800: $7.85 Non-Stocked New Product	Mfr. Part # INN3947FQ-TL Mouser Part # 869-INN3947FQ-TL New Product	Power Integrations	AC/DC Converters 35W 1700V Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	Non-Stocked	Reel $7.85 Quote Quote	Min.: 1,800 Mult.: 1,800 : 1,800	SMD/SMT	InSOP-T28G	5 V to 24 V	35 W	40 V	1.2 kV	Flyback	SiC	25 kHz to 95 kHz		- 40 C	+ 150 C	InnoSwitch3-AQ		Reel
AC/DC Converters 35W 1700V INN3947FQ502-MR Power Integrations 300: $8.76 Non-Stocked New Product	Mfr. Part # INN3947FQ502-MR Mouser Part # 869-INN3947FQ502-MR New Product	Power Integrations	AC/DC Converters 35W 1700V Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	Non-Stocked	Reel $8.76 $8.74 $8.64 Quote Quote	Min.: 300 Mult.: 300 : 300	SMD/SMT	InSOP-T28G	5 V to 24 V	35 W	40 V	1.2 kV	Flyback	SiC	25 kHz to 95 kHz		- 40 C	+ 150 C	InnoSwitch3-AQ		Reel
AC/DC Converters 35W 1700V INN3947FQ502-TL Power Integrations 1,800: $8.35 Non-Stocked New Product	Mfr. Part # INN3947FQ502-TL Mouser Part # 869-INN3947FQ502-TL New Product	Power Integrations	AC/DC Converters 35W 1700V Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	Non-Stocked	Reel $8.35 Quote Quote	Min.: 1,800 Mult.: 1,800 : 1,800	SMD/SMT	InSOP-T28G	5 V to 24 V	35 W	40 V	1.2 kV	Flyback	SiC	25 kHz to 95 kHz		- 40 C	+ 150 C	InnoSwitch3-AQ		Reel
AC/DC Converters 1700V 60W (40-1200VDC) INN3949CQ-H100-TL Power Integrations 2,000: $13.28 Non-Stocked	Mfr. Part # INN3949CQ-H100-TL Mouser Part # 869-INN3949CQ-H100TL	Power Integrations	AC/DC Converters 1700V 60W (40-1200VDC) Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	Non-Stocked	Reel $13.28	Min.: 2,000 Mult.: 2,000 : 2,000	SMD/SMT	InSOP-24D		70 W				Si					InnoSwitch3-AQ		Reel
AC/DC Converters 60W 1700V INN3949FQ-TL Power Integrations 1,800: $13.33 Non-Stocked New Product	Mfr. Part # INN3949FQ-TL Mouser Part # 869-INN3949FQ-TL New Product	Power Integrations	AC/DC Converters 60W 1700V Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	Non-Stocked	Reel $13.33 Quote Quote	Min.: 1,800 Mult.: 1,800 : 1,800	SMD/SMT	InSOP-T28G	5 V to 24 V	60 W	40 V	1.2 kV	Flyback	SiC	25 kHz to 95 kHz		- 40 C	+ 150 C	InnoSwitch3-AQ		Reel
AC/DC Converters 60W 1700V INN3949FQ502-MR Power Integrations 300: $14.31 Non-Stocked New Product	Mfr. Part # INN3949FQ502-MR Mouser Part # 869-INN3949FQ502-MR New Product	Power Integrations	AC/DC Converters 60W 1700V Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	Non-Stocked	Reel $14.31 $13.88 $13.72 Quote Quote	Min.: 300 Mult.: 300 : 300	SMD/SMT	InSOP-T28G	5 V to 24 V	60 W	40 V	1.2 kV	Flyback	SiC	25 kHz to 95 kHz		- 40 C	+ 150 C	InnoSwitch3-AQ		Reel
AC/DC Converters 60W 1700V INN3949FQ502-TL Power Integrations 1,800: $13.33 Non-Stocked New Product	Mfr. Part # INN3949FQ502-TL Mouser Part # 869-INN3949FQ502-TL New Product	Power Integrations	AC/DC Converters 60W 1700V Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	Non-Stocked	Reel $13.33 Quote Quote	Min.: 1,800 Mult.: 1,800 : 1,800	SMD/SMT	InSOP-T28G	5 V to 24 V	60 W	40 V	1.2 kV	Flyback	SiC	25 kHz to 95 kHz		- 40 C	+ 150 C	InnoSwitch3-AQ		Reel
AC/DC Converters 750V 30W (30-550 VDC) INN3977CQ0500-TL Power Integrations 2,000: $4.29 Non-Stocked	Mfr. Part # INN3977CQ0500-TL Mouser Part # 869-INN3977CQ0500-TL	Power Integrations	AC/DC Converters 750V 30W (30-550 VDC) Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	Non-Stocked	Reel $4.29	Min.: 2,000 Mult.: 2,000 : 2,000	SMD/SMT	InSOP-24D	5 V to 24 V	30 W	30 V	550 V	Flyback	Si	132 kHz	200 uA	- 40 C	+ 125 C	InnoSwitch3-AQ		Reel
AC/DC Converters 55W 900V INN3997CQ-TL Power Integrations 2,000: $5.00 Non-Stocked New Product	Mfr. Part # INN3997CQ-TL Mouser Part # 869-INN3997CQ-TL New Product	Power Integrations	AC/DC Converters 55W 900V Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	Non-Stocked	Reel $5.00	Min.: 2,000 Mult.: 2,000 : 2,000	SMD/SMT	InSOP-24D	5 V to 24 V	55 W	40 V	1.2 kV	Flyback	SiC	25 kHz to 95 kHz		- 40 C	+ 150 C	InnoSwitch3-AQ		Reel
AC/DC Converters 85W 900V INN3999CQ-H100-TL Power Integrations 2,000: $6.05 Non-Stocked	Mfr. Part # INN3999CQ-H100-TL Mouser Part # 869-INN3999CQ-H100TL	Power Integrations	AC/DC Converters 85W 900V	Datasheet	Non-Stocked	Reel $6.05	Min.: 2,000 Mult.: 2,000 : 2,000													InnoSwitch3-AQ		Reel
AC/DC Converters 1700V 35W (40-1200VDC) Power Integrations INN3947CQ0500-TL INN3947CQ0500-TL Power Integrations 2,000: $8.32 Non-Stocked New Product	Mfr. Part # INN3947CQ0500-TL Mouser Part # 869-INN3947CQ0500-TL New Product	Power Integrations	AC/DC Converters 1700V 35W (40-1200VDC) Learn More about Power Integrations innoswitch3 aq 1700v switches	Datasheet	Non-Stocked	Reel $8.32	Min.: 2,000 Mult.: 2,000 : 2,000													InnoSwitch3-AQ		Reel

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InnoSwitch™3-AQ Switcher ICs

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