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Contents

README

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EFMB208

LRC · Diodes - General Purpose · SMB

EFMB208 from LRC, in a SMB. 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 LRC
Package SMB
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
Maximum repetitive peak reverse voltage VRRM 600 V Ta = 25ºC 1
Maximum RMS voltage VRMS 420 V Ta = 25ºC 1
Maximum DC blocking voltage VDC 600 V Ta = 25ºC 1
Maximum average forward rectified current IF(AV) 2 A at TC = 75°C 1
Peak forward surge current IFSM 50 A 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) 1
Operating junction and storage temperature range TJ, TSTG -50 150 ℃ 1
Maximum instantaneous forward voltage VF 1.7 V at 2.0A, Ta = 25ºC 1
Maximum DC reverse current IR 5 µA TA = 25°C, at rated DC blocking voltage 1
Maximum DC reverse current IR 100 µA TJ = 125°C, at rated DC blocking voltage 1
Typical reverse recovery time trr 35 ns IF = 0.5A, IR = 1.0A, IRR = 0.25A 1
Typical thermal resistance, junction to ambient RθJA 160 ℃/W 8.0mm² (.013mm thick) land areas 1
Typical thermal resistance, junction to case RθJC 50 ℃/W 1
Typical junction capacitance CJ 15 PF at 4.0V, 1MHz 1

CAD (KiCad official)

  • Symbol: EFMB208
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: efmb208-etched.step / efmb208-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); efmb208.step / efmb208.glb are the bare package body.

Provenance

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

  • Datasheet: LRC datasheet (3 pp, sha256 dca2446dc4aba27b, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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