LED Lighting Driver ICs – Mouser Mexico

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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 (USD) 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: $0.39 2,921In Stock	Mfr. Part # NSV45020T1G Mouser Part # 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 $0.39 $0.261 $0.231 $0.198 View Reel $0.151 $0.177 $0.168 $0.16 $0.151 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: $0.299 225,927In Stock 36,000On Order	Mfr. Part # NSI45020AT1G Mouser Part # 863-NSI45020AT1G	onsemi	LED Lighting Driver ICs LED Driver SOD 123 20mA 10% CCR Learn More about onsemi on semi nsi45 current regulators	Datasheet	225,927In Stock 36,000On Order On Order Ship Dates Mfr. #: NSI45020AT1G Stock: 225,927 Can Ship Immediately On Order: 12,000 Expected 10/21/2026 24,000 Expected 12/15/2026 Factory Lead-Time: 53 Weeks	Cut Tape $0.299 $0.20 $0.174 $0.152 View Reel $0.111 $0.139 $0.125 $0.118 $0.111 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3,090 : 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: $0.312 55,791In Stock 12,000Expected 10/14/2026	Mfr. Part # NSI45020T1G Mouser Part # 863-NSI45020T1G	onsemi	LED Lighting Driver ICs SOD 123 20mA 15% CCR Learn More about onsemi on semi nsi45 current regulators	Datasheet	55,791In Stock 12,000Expected 10/14/2026	Cut Tape $0.312 $0.231 $0.205 $0.176 View Reel $0.137 $0.161 $0.153 $0.146 $0.137 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3,000 : 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: $0.689 19,334In Stock	Mfr. Part # NSI45025AZT1G Mouser Part # 863-NSI45025AZT1G	onsemi	LED Lighting Driver ICs SOT223 25mA 10% CCR Learn More about onsemi on semi nsi45 current regulators	Datasheet	19,334In Stock	Cut Tape $0.689 $0.486 $0.428 $0.378 View Reel $0.321 $0.351 $0.335 $0.321 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 30mA 10% CCR NSI45030AT1G onsemi 1: $0.273 47,718In Stock 156,000Expected 10/13/2027	Mfr. Part # NSI45030AT1G Mouser Part # 863-NSI45030AT1G	onsemi	LED Lighting Driver ICs SOD 123 30mA 10% CCR Learn More about onsemi on semi nsi45 current regulators	Datasheet	47,718In Stock 156,000Expected 10/13/2027	Cut Tape $0.273 $0.19 $0.168 $0.143 View Reel $0.107 $0.13 $0.122 $0.118 $0.107 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 SOD 123 25mA 10% CCR NSI45025AT1G onsemi 1: $0.286 1,799In Stock 48,000On Order	Mfr. Part # NSI45025AT1G Mouser Part # 863-NSI45025AT1G	onsemi	LED Lighting Driver ICs SOD 123 25mA 10% CCR Learn More about onsemi on semi nsi45 current regulators	Datasheet	1,799In Stock 48,000On Order On Order Ship Dates Mfr. #: NSI45025AT1G Stock: 1,799 Can Ship Immediately On Order: 12,000 Expected 4/9/2027 36,000 Expected 7/7/2027 Factory Lead-Time: 53 Weeks	Cut Tape $0.286 $0.191 $0.169 $0.144 View Reel $0.111 $0.133 $0.125 $0.118 $0.111 MouseReel Available	Min.: 1 Mult.: 1 Max.: 4,240 : 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 SOT223 30mA 10% CCR NSI45030AZT1G onsemi 1: $0.689 4,170In Stock	Mfr. Part # NSI45030AZT1G Mouser Part # 863-NSI45030AZT1G	onsemi	LED Lighting Driver ICs SOT223 30mA 10% CCR Learn More about onsemi on semi nsi45 current regulators	Datasheet	4,170In Stock	Cut Tape $0.689 $0.486 $0.436 $0.378 View Reel $0.311 $0.351 $0.335 $0.311 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: $0.299 4,699In Stock 6,000Expected 10/26/2026	Mfr. Part # NSV45020AT1G Mouser Part # 863-NSV45020AT1G	onsemi	LED Lighting Driver ICs SOD 123 20MA 10% CCR Learn More about onsemi solutions ivn lighting	Datasheet	4,699In Stock 6,000Expected 10/26/2026	Cut Tape $0.299 $0.205 $0.182 $0.151 View Reel $0.121 $0.143 $0.135 $0.13 $0.121 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: $0.39 3,000In Stock	Mfr. Part # NSV45025AT1G Mouser Part # 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 $0.39 $0.269 $0.239 $0.205 View Reel $0.164 $0.19 $0.181 $0.173 $0.164 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: $0.663 357In Stock	Mfr. Part # NSV45025AZT1G Mouser Part # 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 $0.663 $0.46 $0.411 $0.355 View Reel $0.286 $0.332 $0.316 $0.286	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: $0.299 5,406In Stock	Mfr. Part # NSV45030AT1G Mouser Part # 863-NSV45030AT1G	onsemi	LED Lighting Driver ICs SOD 123 30MA 10% CCR Learn More about onsemi solutions ivn lighting	Datasheet	5,406In Stock	Cut Tape $0.299 $0.207 $0.183 $0.156 View Reel $0.121 $0.144 $0.137 $0.13 $0.121 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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