Bipolar transistors


ESD protection, TVS, filtering and signal conditioning





Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)


Schottky barrier diode

Planar Schottky barrier diode with an integrated guard ring for stress protection, in an ultra small, flat lead SOD523 (SC-79) Surface-Mounted Device (SMD) plastic package.

Features and benefits

  • Low forward voltage

  • Low capacitance

  • Qualified according to AEC-Q101 and recommended for use in automotive applications


  • Ultra high-speed switching

  • Voltage clamping

  • Line termination

  • Reverse polarity protection


Type number Package version Package name Size (mm) VR [max] (V) IF [max] (A) Nr of functions Configuration IR [max] (µA) Cd [max] (pF) VF [max] (mV) IR [max] (µA)
RB751S40-Q SOD523 SC-79 1.2 x 0.8 x 0.6 40.0 0.12 single single 0.5 2.0 370@IF=1mA 0.5


Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
RB751S40-Q RB751S40-QX
Active G4 SOD523

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
RB751S40-Q RB751S40-QX RB751S40-Q rohs rhf rhf
Quality and reliability disclaimer

Documentation (9)

File name Title Type Date
RB751S40-Q Schottky barrier diode Data sheet 2022-11-23
Nexperia_document_brochure_ESD-Protection-Applications_022017 ESD Protection Application guide Brochure 2018-12-21
SOD523 3D model for products with SOD523 package Design support 2019-01-22
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
SOD523_mk plastic, surface-mounted package; 2 leads; 1.2 mm x 0.8 mm x 0.6 mm body Marcom graphics 2017-01-28
SOD523 plastic, surface-mounted package; 2 leads; 1.2 mm x 0.8 mm x 0.6 mm body Package information 2022-05-27
SOD523_115 Reel pack for SMD, 7''; Q1/T1-Q2/T3 product orientation Packing information 2021-02-05
RB751S40-Q_Nexperia_Product_Reliability RB751S40-Q Nexperia Product Reliability Quality document 2024-04-22
REFLOW_BG-BD-1 Reflow soldering profile Reflow soldering 2021-04-06


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
SOD523 3D model for products with SOD523 package Design support 2019-01-22

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
RB751S40-Q RB751S40-QX 934665823115 Active SOD523_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
RB751S40-Q RB751S40-QX 934665823115 SOD523 Order product