component
RB751S-40
Public Made by Adomby adom
Changjiang Electronics Tech (CJ) Schottky Barrier Diodes (SBD), SOD-523. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownRB751S-40
Changjiang Electronics Tech (CJ) · Schottky Barrier Diodes (SBD) · SOD-523
RB751S-40 from Changjiang Electronics Tech (CJ), 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjiang Electronics Tech (CJ) |
| 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 | 0.37 | V | IF=1mA | 1 | ||
| Reverse current | IR | 0.5 | μA | VR=30V | 1 | ||
| Capacitance between terminals | CT | 2 | pF | VR=1V,f=1MHZ | 1 | ||
| Reverse voltage | V(BR) | 40 | V | IR=1mA | 1 | ||
| Peak reverse voltage | VRM | 40 | V | Ta=25℃ | 1 | ||
| DC reverse voltage | VR | 40 | V | Ta=25℃ | 1 | ||
| Mean rectifying current | IO | 30 | mA | Ta=25℃ | 1 | ||
| Non-repetitive Peak Forward Surge Current | IFSM | 200 | mA | t=8.3ms | 1 | ||
| Power dissipation | PD | 150 | mW | 1 | |||
| Operating Junction Temperature Range | Tj | -40 | 125 | ℃ | 1 | ||
| Storage Temperature Range | Tstg | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance Junction to Ambient | RθJA | 667 | ℃/W | 1 |
CAD (KiCad official)
- Symbol:
RB751S-40 - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
rb751s-40-etched.step/rb751s-40-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rb751s-40.step/rb751s-40.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjiang Electronics Tech (CJ) datasheet (4 pp, sha256
9d310b3f00eec3f3, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).