250 mA LED driver in SOT457

LED driver consisting of a resistor-equipped NPN transistor with two diodes on one chip in an SOT457 (SC-74; TSOP6) plastic package.

Table 1. Product overview
Type number Package
Nexperia JEITA



SC-74; TSOP6


Features and benefits

  • Stabilized output current of 10 mA without external resistor

  • Stabilized output current adjustable up to 250 mA when an external resistor is used

  • High current accuracy at supply voltage variation

  • Low voltage overhead of 1.4 V

  • Reduces component count and board space

  • High power dissipation of 750 mW

  • Supply voltage up to 16 V

  • Digital PWM input up to 10 kHz frequency for NCR321U

  • AEC-Q101 qualified


  • Constant LED driver

  • Generic constant current source

  • Automotive applications (for example: interior lighting, dash board, instrumentation, number plate light)

  • Increase stabilized output current by paralleling drivers


Type number Package version Package name Size (mm) VSUP [max] (V) Limiting IO with external resistor [max] (mA) IO [max] (mA) Ptot [max] (mW) Polarity Automotive qualified
NCR320U SOT457 TSOP6 2.9 x 1.5 x 1 16 250 11 750 NPN Y


Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
Active L4 SOT457

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
NCR320U NCR320UX NCR320U rohs rhf rhf
Quality and reliability disclaimer

Documentation (15)

File name Title Type Date
NCR320U_NCR321U 250 mA LED driver in SOT457 Data sheet 2018-12-11
Nexperia_document_guide_MiniLogic_PicoGate_201901 PicoGate leaded logic portfolio guide Brochure 2019-01-07
SOT457 3D model for products with SOT457 package Design support 2022-11-04
Nexperia_document_factsheet_LED_Driver_2020 Constant current LED Drivers Leaflet 2020-08-18
Nexperia_document_factsheet_LED_Driver_2020_CHN LED Driver Factsheet CHN Leaflet 2020-08-20
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
TSOP6_SOT457_mk plastic, surface-mounted package (TSOP6); 6 leads; 0.95 mm pitch; 2.9 mm x 1.5 mm x 1 mm body Marcom graphics 2017-01-28
SOT457 plastic, surface-mounted package (SC-74; TSOP6); 6 leads Package information 2023-03-03
SOT457_115 TSOP6; Reel pack for SMD, 7"; Q2/T3 product orientation Packing information 2020-06-12
NCR320U_Nexperia_Product_Quality NCR320U Nexperia Product Quality Quality document 2019-05-20
NCR320U_Nexperia_Product_Reliability NCR320U Nexperia Product Reliability Quality document 2024-04-22
REFLOW_BG-BD-1 Reflow soldering profile Reflow soldering 2021-04-06
NCR320U NCR320U SPICE model SPICE model 2024-04-05
MAR_SOT457 MAR_SOT457 Topmark Top marking 2013-06-03
WAVE_BG-BD-1 Wave soldering profile Wave soldering 2021-09-08


If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.


File name Title Type Date
NCR320U NCR320U SPICE model SPICE model 2024-04-05
SOT457 3D model for products with SOT457 package Design support 2022-11-04

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
NCR320U NCR320UX 934070294115 Active SOT457_115 3,000 Order product


As a Nexperia customer you can order samples via our sales organization.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples. Check out the list of official distributors.

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
NCR320U NCR320UX 934070294115 SOT457 Order product