LED Lighting Driver ICs – Mouser Liechtenstein

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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 (CHF) 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: CHF 0.241 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 CHF 0.241 CHF 0.162 CHF 0.143 CHF 0.123 View Reel CHF 0.094 CHF 0.11 CHF 0.104 CHF 0.099 CHF 0.094 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: CHF 0.185 235’239In Stock 18’000Expected 12/15/2026	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	235’239In Stock 18’000Expected 12/15/2026	Cut Tape CHF 0.185 CHF 0.124 CHF 0.108 CHF 0.095 View Reel CHF 0.068 CHF 0.086 CHF 0.078 CHF 0.073 CHF 0.068 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3’370 : 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: CHF 0.193 57’077In 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	57’077In Stock	Cut Tape CHF 0.193 CHF 0.143 CHF 0.127 CHF 0.109 View Reel CHF 0.084 CHF 0.10 CHF 0.095 CHF 0.09 CHF 0.084 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3’100 : 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: CHF 0.427 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 CHF 0.427 CHF 0.301 CHF 0.265 CHF 0.234 View Reel CHF 0.198 CHF 0.217 CHF 0.208 CHF 0.198 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: CHF 0.169 23’614In Stock 138’000Expected 10/15/2027	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	23’614In Stock 138’000Expected 10/15/2027	Cut Tape CHF 0.169 CHF 0.118 CHF 0.104 CHF 0.089 View Reel CHF 0.066 CHF 0.08 CHF 0.076 CHF 0.073 CHF 0.066 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: CHF 0.177 1’087In 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	1’087In Stock 48’000On Order On Order Ship Dates Mfr. No: NSI45025AT1G Stock: 1’087 Can Dispatch Immediately On Order: 12’000 Expected 4/9/2027 36’000 Expected 7/9/2027 Factory Lead Time: 52 Weeks	Cut Tape CHF 0.177 CHF 0.118 CHF 0.105 CHF 0.089 View Reel CHF 0.068 CHF 0.082 CHF 0.078 CHF 0.073 CHF 0.068 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 SOT223 30mA 10% CCR NSI45030AZT1G onsemi 1: CHF 0.427 4’240In 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	4’240In Stock	Cut Tape CHF 0.427 CHF 0.301 CHF 0.27 CHF 0.234 View Reel CHF 0.193 CHF 0.217 CHF 0.208 CHF 0.193 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1’000 : 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: CHF 0.193 1’640In 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	1’640In Stock 18’000On Order On Order Ship Dates Mfr. No: NSV45020AT1G Stock: 1’640 Can Dispatch Immediately On Order: 6’000 Expected 12/8/2027 12’000 TBD Factory Lead Time: 52 Weeks	Cut Tape CHF 0.193 CHF 0.128 CHF 0.114 CHF 0.096 View Reel CHF 0.076 CHF 0.089 CHF 0.084 CHF 0.08 CHF 0.076 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: CHF 0.241 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 CHF 0.241 CHF 0.167 CHF 0.148 CHF 0.127 View Reel CHF 0.101 CHF 0.118 CHF 0.112 CHF 0.107 CHF 0.101 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: CHF 0.411 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 CHF 0.411 CHF 0.285 CHF 0.255 CHF 0.22 View Reel CHF 0.177 CHF 0.205 CHF 0.196 CHF 0.177	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: CHF 0.185 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 CHF 0.185 CHF 0.128 CHF 0.113 CHF 0.096 View Reel CHF 0.075 CHF 0.089 CHF 0.084 CHF 0.08 CHF 0.075 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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