component

RB751S40

Public Made by Adom

by adom

Nexperia Schottky Barrier Diodes (SBD), SOD-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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RB751S40

Nexperia · Schottky Barrier Diodes (SBD) · SOD-523

RB751S40 from Nexperia, in a SOD-523. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 K passive Cathode of the Schottky diode (marked by the marking bar); repetitive peak reverse voltage VRRM 40 V max.
2 A passive Anode of the Schottky diode; forward current IF 120 mA max, VF 370 mV max at IF = 1 mA.

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOD-523
Category Diodes
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Forward voltage VF 370 mV IF = 1 mA; pulsed; tp ≤ 300 µs; δ ≤ 0.02; Tamb = 25 °C 3
Reverse current IR 0.5 µA VR = 30 V; Tamb = 25 °C 3
Diode capacitance Cd 2 pF VR = 1 V; f = 1 MHz; Tamb = 25 °C 3
Reverse voltage VR 40 V Tj = 25 °C 2
Repetitive peak reverse voltage VRRM 40 V 2
Forward current IF 120 mA 2
Non-repetitive peak forward current IFSM 200 mA tp < 10 ms; square wave; Tj(init) = 25 °C 2
Total power dissipation Ptot 280 mW Tamb ≤ 25 °C; FR4 PCB, single-sided copper, tin-plated, standard footprint 2
Junction temperature Tj 150 °C 2
Ambient temperature Tamb -65 150 °C 2
Storage temperature Tstg -65 150 °C 2
Thermal resistance from junction to ambient Rth(j-a) 450 K/W in free air; FR4 PCB, single-sided copper, tin-plated, standard footprint 2

CAD (KiCad official)

  • Symbol: RB751S40
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523 (KiCad packages3D, STEP)
  • 3D model files: rb751s40-etched.step / rb751s40-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rb751s40.step / rb751s40.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Nexperia datasheet (7 pp, sha256 a871a0b38d1ed327, retrieved 2026-10-22, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF