LED Lighting Driver ICs – Mouser Singapore

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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 (SGD) 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: $0.408 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 $0.408 $0.273 $0.242 $0.207 View Reel $0.158 $0.185 $0.175 $0.167 $0.158 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: $0.313 237,064In Stock 24,000On Order	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	237,064In Stock 24,000On Order On Order Ship Dates Mfr. No: NSI45020AT1G Stock: 237,064 Can Dispatch Immediately On Order: 6,000 Expected 28/10/2026 18,000 Expected 15/12/2026 Factory Lead Time: 53 Weeks	Cut Tape $0.313 $0.209 $0.182 $0.159 View Reel $0.116 $0.146 $0.131 $0.124 $0.116 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: $0.326 64,303In 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	64,303In Stock	Cut Tape $0.326 $0.242 $0.215 $0.184 View Reel $0.143 $0.169 $0.16 $0.152 $0.143 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: $0.721 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 $0.721 $0.509 $0.447 $0.396 View Reel $0.336 $0.367 $0.351 $0.336 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: $0.286 25,148In Stock 156,000Expected 13/10/2027	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	25,148In Stock 156,000Expected 13/10/2027	Cut Tape $0.286 $0.199 $0.175 $0.15 View Reel $0.112 $0.136 $0.128 $0.124 $0.112 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: $0.299 1,588In 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	1,588In Stock 48,000On Order On Order Ship Dates Mfr. No: NSI45025AT1G Stock: 1,588 Can Dispatch Immediately On Order: 12,000 Expected 9/4/2027 36,000 Expected 7/7/2027 Factory Lead Time: 53 Weeks	Cut Tape $0.299 $0.20 $0.177 $0.151 View Reel $0.116 $0.139 $0.131 $0.124 $0.116 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: $0.721 4,153In 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	4,153In Stock	Cut Tape $0.721 $0.509 $0.456 $0.396 View Reel $0.325 $0.367 $0.351 $0.325 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: $0.313 7,698In Stock 6,000Expected 8/12/2027	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	7,698In Stock 6,000Expected 8/12/2027	Cut Tape $0.313 $0.215 $0.19 $0.158 View Reel $0.126 $0.15 $0.141 $0.136 $0.126 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: $0.408 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 $0.408 $0.282 $0.25 $0.215 View Reel $0.171 $0.199 $0.189 $0.181 $0.171 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: $0.694 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 $0.694 $0.481 $0.43 $0.371 View Reel $0.299 $0.347 $0.33 $0.299	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: $0.313 5,406In 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	5,406In Stock	Cut Tape $0.313 $0.216 $0.192 $0.163 View Reel $0.126 $0.151 $0.143 $0.136 $0.126 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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