component

RB508FM-40CFHT106

Public Made by Adom

by adom

ROHM Semicon Schottky Diodes, SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentdiodesrb508fm-40cfht106factory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
rb508fm-40cfht106 / README.md
History Download
Ray Publish 0.1.0 7c94c68 7d ago

RB508FM-40CFHT106

ROHM Semicon · Schottky Diodes · SOT-323

RB508FM-40CFHT106 from ROHM Semicon, in a SOT-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 A1 passive Anode of the first Schottky diode (VR 40 V, IF 120 mA per diode, Io 80 mA per diode).
2 A2 passive Anode of the second Schottky diode (VR 40 V, IF 120 mA per diode, Io 80 mA per diode).
3 K passive Common cathode of both Schottky diodes (VR 40 V, IFSM 1 A).

Key specifications

Parameter Value
Manufacturer ROHM Semicon
Package SOT-323
Category Diodes
Pins 3

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Repetitive peak reverse voltage VRM 40 V Duty≦0.5 1
Reverse voltage VR 40 V Direct reverse voltage 1
Forward current IF 120 mA Direct reverse voltage, per diode 1
Average rectified forward current Io 80 mA Glass epoxy mounted, 60Hz half sin waveform, resistive load, per diode 1
Peak forward surge current IFSM 1 A 60Hz half sin waveform, Non-repetitive, one cycle, Ta=25℃ 1
Junction temperature Tj 150 ℃ 1
Storage temperature Tstg -55 150 ℃ 1
Forward voltage VF1 0.51 0.59 V IF=1mA Tj=-40℃ 2
Forward voltage VF2 0.56 0.62 V IF=10mA 2
Forward voltage VF3 0.61 0.66 V IF=40mA 2
Forward voltage VF4 0.4 0.48 V IF=1mA Tj=25℃ 2
Forward voltage VF5 0.47 0.53 V IF=10mA 2
Forward voltage VF6 0.54 0.59 V IF=40mA 2
Reverse current IR1 2 35 nA VR=30V Tj=25℃ 2
Reverse current IR2 15 260 μA VR=30V Tj=150℃ 2
Reverse current IR3 20 340 μA VR=40V 2

CAD (KiCad official)

  • Symbol: RB508FM-40CFHT106
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: rb508fm-40cfht106-etched.step / rb508fm-40cfht106-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rb508fm-40cfht106.step / rb508fm-40cfht106.glb are the bare package body.

Provenance

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

  • Datasheet: ROHM Semicon datasheet (7 pp, sha256 1ad968302f26d1d8, retrieved 2026-10-20, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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