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.

Results: 11
Select Image Part # Mfr. Description Datasheet Availability Pricing (PHP) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model 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
onsemi LED Lighting Driver ICs SOD 123 20MA 15% CCR 2,921In Stock
Cut Tape
₱18.41
₱12.33
₱10.92
₱9.33
Reel
₱7.12
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
onsemi LED Lighting Driver ICs LED Driver SOD 123 20mA 10% CCR 242,353In Stock
30,600On Order
Cut Tape
₱14.11
₱9.45
₱8.22
₱7.18
Reel
₱5.21
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
onsemi LED Lighting Driver ICs SOD 123 20mA 15% CCR 55,791In Stock
12,000Expected 14/10/2026
Cut Tape
₱14.72
₱10.92
₱9.69
₱8.28
Reel
₱6.44
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
onsemi LED Lighting Driver ICs SOT223 25mA 10% CCR 19,334In Stock
Cut Tape
₱32.52
₱22.94
₱20.18
₱17.85
Reel
₱15.15
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
onsemi LED Lighting Driver ICs SOD 123 30mA 10% CCR 47,718In Stock
156,000Expected 13/10/2027
Cut Tape
₱12.88
₱8.96
₱7.91
₱6.75
Reel
₱5.03
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
onsemi LED Lighting Driver ICs SOD 123 25mA 10% CCR 1,799In Stock
48,000On Order
Cut Tape
₱13.50
₱9.02
₱7.98
₱6.81
Reel
₱5.21
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
onsemi LED Lighting Driver ICs SOT223 30mA 10% CCR 4,170In Stock
Cut Tape
₱32.52
₱22.94
₱20.55
₱17.85
Reel
₱14.66
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
onsemi LED Lighting Driver ICs SOD 123 20MA 10% CCR 10,699In Stock
Cut Tape
₱14.11
₱9.69
₱8.59
₱7.12
Reel
₱5.71
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
onsemi LED Lighting Driver ICs SOD 123 25MA 10% CCR 3,000In Stock
Cut Tape
₱18.41
₱12.70
₱11.29
₱9.69
Reel
₱7.73
Min.: 1
Mult.: 1
: 3,000
SOD-123 NSI45025A AEC-Q100 Reel, Cut Tape, MouseReel
onsemi LED Lighting Driver ICs SOT223 25MA 10% CCR 357In Stock
Cut Tape
₱31.29
₱21.72
₱19.39
₱16.75
Reel
₱13.50
Min.: 1
Mult.: 1
: 1,000
SOT-223 NSI45025AZ AEC-Q100 Reel, Cut Tape
onsemi LED Lighting Driver ICs SOD 123 30MA 10% CCR 5,406In Stock
Cut Tape
₱14.11
₱9.75
₱8.65
₱7.36
Reel
₱5.71
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