NSI45020 Series 20 mA 45 V SMT Constant Current Regulator & LED Driver - SOD-123

Mfr Part#: NSI45020AT1G
Mounting Method:  Surface Mount
Package Style:  SOD-123
Packaging:  REEL
Std Packaging Qty:  3,000




$0.1300 USD (each)
3000 - 6000 $0.1300
9000+ $0.1240 (Save 5%)


Qty in Stock : 258,000
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Min. Order Qty: 3,000
Multiple of: 3,000
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Product Highlight

  • Supply Voltage: 45 V
  • Output Current per Channel: 20 mA

The NSI45020AT1G is a Constant Current Regulator & LED Driver with 45 V, 25 mA ± 10%, 460 mW Package.

The linear constant current regulator (CCR) is a simple, economical and robust device designed to provide a cost−effective solution for regulating current in LEDs. The CCR is based on patent-pending Self-Biased Transistor (SBT) technology and regulates current over a wide voltage range. It is designed with a negative temperature coefficient to protect LEDs from thermal runaway at extreme voltages and currents. The CCR turns on immediately and is at 25% of regulation with only 0.5 V Vak. It requires no external components allowing it to be designed as a high or low−side regulator. The high anode-cathode voltage rating withstands surges common in Automotive, Industrial and Commercial Signage applications. The CCR comes in thermally robust packages and is qualified to AEC-Q101 standard.

Key Features:

  • Robust Power Package: 460 mWatts
  • Wide Operating Voltage Range
  • Immediate Turn-On
  • Voltage Surge Suppressing − Protecting LEDs
  • AEC-Q101 Qualified
  • SBT (Self−Biased Transistor) Technology
  • Negative Temperature Coefficient
  • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant


  • Automobile: Chevron Side Mirror Markers, Cluster, Display & Instrument Backlighting, CHMSL, Map Light
  • AC Lighting Panels, Display Signage, Decorative Lighting, Channel Lettering
  • Switch Contact Wetting
  • Power Dissipation Considerations
  • Automotive CHMSL

To learn more about the NSI45020A product family, Click Here

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