LED Lighting Driver ICs – Mouser United Kingdom

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NSI45 Constant Current Regulators

onsemi NSI45 Constant Current Regulators are two-terminal linear constant current regulators. These regulators are simple, economical, and robust devices that provide a cost-effective solution for regulating current in LEDs. The NSI45 regulators are based on Self-Biased Transistor technology and regulate output current over a wide input voltage range. These regulators are designed with a negative temperature coefficient to protect LEDs from thermal runaway at extreme voltages and operating temperatures. The NSI45 regulators require no external components and have a high anode-cathode voltage rating that withstands surges common in automotive, industrial, and commercial signage applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.	Number of Outputs	Topology	Output Current	Package/Case	Supply Voltage - Max	Supply Voltage - Min	Operating Frequency	Output Voltage	Series	Minimum Operating Temperature	Maximum Operating Temperature	Qualification	Packaging
LED Lighting Driver ICs SOD 123 20MA 15% CCR NSV45020T1G onsemi 1: £0.225 2,921In Stock	Mfr. Part No. NSV45020T1G Mouser Part No 863-NSV45020T1G	onsemi	LED Lighting Driver ICs SOD 123 20MA 15% CCR Learn More about onsemi solutions ivn lighting	Datasheet	2,921In Stock	Cut Tape £0.225 £0.151 £0.134 £0.114 View Reel £0.087 £0.102 £0.097 £0.093 £0.087 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	1 Output	Boost, Buck	20 mA	SOD-123-2	45 V	45 V	100 Hz to 100 kHz	Adjustable	NSI45020	- 55 C	+ 150 C	AEC-Q100	Reel, Cut Tape, MouseReel
LED Lighting Driver ICs LED Driver SOD 123 20mA 10% CCR NSI45020AT1G onsemi 1: £0.173 231,685In Stock 18,000Expected 09/11/2026	Mfr. Part No. NSI45020AT1G Mouser Part No 863-NSI45020AT1G	onsemi	LED Lighting Driver ICs LED Driver SOD 123 20mA 10% CCR Learn More about onsemi on semi nsi45 current regulators	Datasheet	231,685In Stock 18,000Expected 09/11/2026	Cut Tape £0.173 £0.115 £0.10 £0.088 View Reel £0.064 £0.08 £0.072 £0.068 £0.064 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3,250 : 3,000	1 Output	Boost, Buck	20 mA	SOD-123	45 V	45 V	1 MHz	Adjustable	NSI45020A	- 55 C	+ 150 C		Reel, Cut Tape, MouseReel
LED Lighting Driver ICs SOD 123 20mA 15% CCR NSI45020T1G onsemi 1: £0.18 53,077In Stock	Mfr. Part No. NSI45020T1G Mouser Part No 863-NSI45020T1G	onsemi	LED Lighting Driver ICs SOD 123 20mA 15% CCR Learn More about onsemi on semi nsi45 current regulators	Datasheet	53,077In Stock	Cut Tape £0.18 £0.134 £0.119 £0.101 View Reel £0.079 £0.093 £0.088 £0.084 £0.079 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3,170 : 3,000	1 Output	Boost, Buck	20 mA	SOD-123	45 V	45 V	1 MHz	Adjustable	NSI45020	- 55 C	+ 150 C		Reel, Cut Tape, MouseReel
LED Lighting Driver ICs SOT223 25mA 10% CCR NSI45025AZT1G onsemi 1: £0.398 18,667In Stock	Mfr. Part No. NSI45025AZT1G Mouser Part No 863-NSI45025AZT1G	onsemi	LED Lighting Driver ICs SOT223 25mA 10% CCR Learn More about onsemi on semi nsi45 current regulators	Datasheet	18,667In Stock	Cut Tape £0.398 £0.281 £0.247 £0.218 View Reel £0.185 £0.203 £0.194 £0.185 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	1 Output	Boost, Buck	25 mA	SOT-223	45 V	45 V	1 MHz	Adjustable	NSI45025AZ	- 55 C	+ 150 C		Reel, Cut Tape, MouseReel
LED Lighting Driver ICs SOD 123 25mA 10% CCR NSI45025AT1G onsemi 1: £0.165 516In Stock 48,000On Order	Mfr. Part No. NSI45025AT1G Mouser Part No 863-NSI45025AT1G	onsemi	LED Lighting Driver ICs SOD 123 25mA 10% CCR Learn More about onsemi on semi nsi45 current regulators	Datasheet	516In Stock 48,000On Order On Order Ship Dates Mfr. No: NSI45025AT1G Stock: 516 Can Dispatch Immediately On Order: 12,000 Expected 09/04/2027 36,000 Expected 09/07/2027 Factory Lead Time: 52 Weeks	Cut Tape £0.165 £0.11 £0.098 £0.083 View Reel £0.064 £0.077 £0.072 £0.068 £0.064 MouseReel Available	Min.: 1 Mult.: 1 Max.: 6,000 : 3,000	1 Output	Boost, Buck	25 mA	SOD-123	45 V	45 V	1 MHz	Adjustable	NSI45025A	- 55 C	+ 150 C		Reel, Cut Tape, MouseReel
LED Lighting Driver ICs SOD 123 30mA 10% CCR NSI45030AT1G onsemi 1: £0.158 6,888In Stock 138,000Expected 15/10/2027	Mfr. Part No. NSI45030AT1G Mouser Part No 863-NSI45030AT1G	onsemi	LED Lighting Driver ICs SOD 123 30mA 10% CCR Learn More about onsemi on semi nsi45 current regulators	Datasheet	6,888In Stock 138,000Expected 15/10/2027	Cut Tape £0.158 £0.11 £0.097 £0.083 View Reel £0.062 £0.075 £0.071 £0.068 £0.062 MouseReel Available	Min.: 1 Mult.: 1 Max.: 6,000 : 3,000	1 Output	Boost, Buck	30 mA	SOD-123	45 V	45 V	1 MHz	Adjustable	NSI45030A	- 55 C	+ 150 C		Reel, Cut Tape, MouseReel
LED Lighting Driver ICs SOT223 30mA 10% CCR NSI45030AZT1G onsemi 1: £0.398 3,840In Stock	Mfr. Part No. NSI45030AZT1G Mouser Part No 863-NSI45030AZT1G	onsemi	LED Lighting Driver ICs SOT223 30mA 10% CCR Learn More about onsemi on semi nsi45 current regulators	Datasheet	3,840In Stock	Cut Tape £0.398 £0.281 £0.251 £0.218 View Reel £0.18 £0.203 £0.194 £0.18 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	1 Output	Boost, Buck	30 mA	SOT-223	45 V	45 V	1 MHz	Adjustable	NSI45030AZ	- 55 C	+ 150 C		Reel, Cut Tape, MouseReel
LED Lighting Driver ICs SOD 123 20MA 10% CCR NSV45020AT1G onsemi 1: £0.18 1,599In Stock 18,000On Order	Mfr. Part No. NSV45020AT1G Mouser Part No 863-NSV45020AT1G	onsemi	LED Lighting Driver ICs SOD 123 20MA 10% CCR Learn More about onsemi solutions ivn lighting	Datasheet	1,599In Stock 18,000On Order On Order Ship Dates Mfr. No: NSV45020AT1G Stock: 1,599 Can Dispatch Immediately On Order: 6,000 Expected 08/12/2027 12,000 Expected 05/01/2028 Factory Lead Time: 52 Weeks	Cut Tape £0.18 £0.12 £0.107 £0.09 View Reel £0.071 £0.083 £0.079 £0.075 £0.071 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3,000 : 3,000	1 Output	Boost, Buck	20 mA	SOD-123	45 V	45 V	100 Hz to 100 kHz	Adjustable	NSI45020A	- 55 C	+ 150 C	AEC-Q100	Reel, Cut Tape, MouseReel
LED Lighting Driver ICs SOD 123 25MA 10% CCR NSV45025AT1G onsemi 1: £0.225 3,000In Stock	Mfr. Part No. NSV45025AT1G Mouser Part No 863-NSV45025AT1G	onsemi	LED Lighting Driver ICs SOD 123 25MA 10% CCR Learn More about onsemi on semi nsi45 current regulators	Datasheet	3,000In Stock	Cut Tape £0.225 £0.155 £0.138 £0.119 View Reel £0.094 £0.11 £0.105 £0.10 £0.094 MouseReel Available	Min.: 1 Mult.: 1 : 3,000				SOD-123					NSI45025A			AEC-Q100	Reel, Cut Tape, MouseReel
LED Lighting Driver ICs SOT223 25MA 10% CCR NSV45025AZT1G onsemi 1: £0.383 357In Stock	Mfr. Part No. NSV45025AZT1G Mouser Part No 863-NSV45025AZT1G	onsemi	LED Lighting Driver ICs SOT223 25MA 10% CCR Learn More about onsemi on semi nsi45 current regulators	Datasheet	357In Stock	Cut Tape £0.383 £0.265 £0.237 £0.205 View Reel £0.165 £0.191 £0.182 £0.165	Min.: 1 Mult.: 1 : 1,000				SOT-223					NSI45025AZ			AEC-Q100	Reel, Cut Tape
LED Lighting Driver ICs SOD 123 30MA 10% CCR NSV45030AT1G onsemi 1: £0.173 5,410In Stock	Mfr. Part No. NSV45030AT1G Mouser Part No 863-NSV45030AT1G	onsemi	LED Lighting Driver ICs SOD 123 30MA 10% CCR Learn More about onsemi solutions ivn lighting	Datasheet	5,410In Stock	Cut Tape £0.173 £0.12 £0.106 £0.09 View Reel £0.07 £0.083 £0.079 £0.075 £0.07 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	1 Output	Boost, Buck	30 mA	SOD-123	45 V	45 V	100 Hz to 100 kHz	Adjustable	NSI45030A	- 55 C	+ 150 C	AEC-Q100	Reel, Cut Tape, MouseReel

NSI45 Constant Current Regulators

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NSI45 Constant Current Regulators

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