Orderable parts
| Type number | Orderable part number | Ordering code (12NC) | Package | Buy from distributors |
|---|---|---|---|---|
| NCR421U | NCR421UX | 934070297115 | SOT457 | Order product |
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Click here for more informationNCR421U
150 mA LED driver in SOT457
LED driver consisting of resistor-equipped NPN transistor with two diodes on one chip in an
SOT457 (SC-74; TSOP6) plastic package.
| Type number | Package | |
|---|---|---|
| Nexperia | JEITA | |
NCR420U | SOT457 | SC-74; TSOP6 |
NCR421U | ||
Features and benefits
Stabilized output current of 10 mA without external resistor
Stabilized output current adjustable up to 150 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 40 V
Digital PWM input up to 10 kHz frequency for NCR421U
AEC-Q101 qualified
Applications
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
Parametrics
| Type number | Package version | Package name | Size (mm) | VSUP [max] (V) | Limiting IO with external resistor [max] (mA) | IO [max] (mA) | Ptot [max] (mW) | channel type (e) | Automotive qualified |
|---|---|---|---|---|---|---|---|---|---|
| NCR421U | SOT457 | TSOP6 | 2.9 x 1.5 x 1 | 40.0 | 150.0 | 11.0 | 750.0 | NPN | Y |
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| NCR421U | NCR421UX (934070297115) |
Active | L7 |
TSOP6 (SOT457) |
SOT457 |
REFLOW_BG-BD-1
WAVE_BG-BD-1 |
SOT457_115 |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| NCR421U | NCR421UX | NCR421U |
|
|
Documentation (13)
| File name | Title | Type | Date |
|---|---|---|---|
| NCR420U_NCR421U | 150 mA LED driver in SOT457 | Data sheet | 2019-02-04 |
| AN90063 | Questions about package outline drawings | Application note | 2025-06-13 |
| 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_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 |
| NCR421U_Nexperia_Product_Reliability | NCR421U Nexperia Product Reliability | Quality document | 2025-05-28 |
| REFLOW_BG-BD-1 | Reflow soldering profile | Reflow soldering | 2021-04-06 |
| NCR421U | NCR421U SPICE model | SPICE model | 2025-05-31 |
| MAR_SOT457 | MAR_SOT457 Topmark | Top marking | 2013-06-03 |
| WAVE_BG-BD-1 | Wave soldering profile | Wave soldering | 2021-09-08 |
Support
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.
Longevity
The Nexperia Longevity Program is aimed to provide our customers information from time to time about the expected time that our products can be ordered. The NLP is reviewed and updated regularly by our Executive Management Team. View our longevity program here.
Ordering, pricing & availability
| Type number | Orderable part number | Ordering code (12NC) | Status | Packing | Packing Quantity | Buy online |
|---|---|---|---|---|---|---|
| NCR421U | NCR421UX | 934070297115 | Active | SOT457_115 | 3,000 |
|
Sample
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.