component
RB751V-40-HF
Public Made by Adomby adom
Comchip Zener Diodes, SOD-323. 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
markdownRB751V-40-HF
Comchip · Zener Diodes · SOD-323
RB751V-40-HF from Comchip, in a SOD-323. 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 | Comchip |
| Package | SOD-323 |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak reverse voltage | VRM | 40 | V | 1 | |||
| Mean rectifying current | IO | 30 | mA | 1 | |||
| Non-repetitive peak forward surge current | IFSM | 0.2 | A | 8.3ms single half sine-wave superimposed on rate load (JEDEC method) | 1 | ||
| DC reverse voltage | VR | 30 | V | 1 | |||
| Junction temperature range | TJ | -40 | 125 | °C | 1 | ||
| Storage temperature range | TSTG | -55 | 150 | °C | 1 | ||
| Power dissipation | PD | 200 | mW | 1 | |||
| Thermal resistance junction to ambient | RθJA | 500 | °C/W | Junction to ambient | 1 | ||
| Forward voltage | VF | 0.37 | V | IF = 1mA | 1 |
CAD (KiCad official)
- Symbol:
RB751V-40-HF - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
rb751v-40-hf-etched.step/rb751v-40-hf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rb751v-40-hf.step/rb751v-40-hf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Comchip datasheet (4 pp, sha256
21920b7344b094c6, retrieved 2026-10-27, 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).