component

SMBJ5338B-MS

Public Made by Adom

by adom

MSKSEMI Zener Diodes, SMB. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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SMBJ5338B-MS

MSKSEMI · Zener Diodes · SMB

SMBJ5338B-MS from MSKSEMI, 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 MSKSEMI
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
Zener voltage tolerance VZ -5 5 % Devices listed have ±5% tolerance on nominal VZ 4
Nominal regulator voltage VZ 5.1 V @ 25°C, test current IZ=240 mA 3
Test current IZ 240 mA @ 25°C 3
Maximum dynamic impedance ZZT 1.5 Ω @ 25°C 3
Maximum reverse current IR 1 µA VR=1 V 3
Maximum regulator current IZM 930 mA ±5% tolerance devices 3
Maximum dynamic knee impedance ZZK 400 Ω @1.0mA 3
Maximum surge current IZSM 14.4 A Nonrecurring sine wave, 8.3 ms 3
Maximum voltage regulation ΔVZ 0.39 V Difference between voltage at 10% and 50% IZM 3
Maximum forward voltage VF 1.2 V IF=1.0A 2
Steady state power dissipation P(AV) 5 W Lead temperature 75°C at mounting plane, derate linearly to zero at 150°C 2
Operating junction temperature range TJ -55 150 °C 2
Storage temperature range Tstg -55 150 °C 2
Thermal resistance junction to lead RθJL 15 °C/W Junction to Lead 2
Thermal resistance junction to ambient RθJA 90 °C/W Junction to Ambient, Note 2 2

CAD (KiCad official)

  • Symbol: SMBJ5338B-MS
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: smbj5338b-ms-etched.step / smbj5338b-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smbj5338b-ms.step / smbj5338b-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (6 pp, sha256 fdbb089c9980bb8a, 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