component

HMSMBJ28A

Public Made by Adom

by adom

HXY MOSFET ESD And Surge Protection (TVS/ESD), SMB(DO-214AA). Diode: pin 1 is the cathode (the banded end) by the KiCad diode-footprint 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
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 14d ago
viewers hmsmbj28a: symbol repaired (D_Zener, cathode pad 1) · Ray 5d ago
hmsmbj28a-etched.glb Publish 0.1.0 · Ray 14d ago
hmsmbj28a-etched.step hmsmbj28a: factory component page (tier=lcsc) · Ray 14d ago
hmsmbj28a-hero.glb hmsmbj28a: hero GLB from the etched model (keeps the MPN mark) · Ray 14d ago
hmsmbj28a-hero.overlay.json Publish 0.1.0 · Ray 14d ago
hmsmbj28a.glb Publish 0.1.0 · Ray 14d ago
hmsmbj28a.kicad_mod Publish 0.1.0 · Ray 14d ago
hmsmbj28a.kicad_sym hmsmbj28a: symbol repaired (D_Zener, cathode pad 1) · Ray 5d ago
hmsmbj28a.lbr hmsmbj28a: symbol repaired (D_Zener, cathode pad 1) · Ray 5d ago
hmsmbj28a.step Publish 0.1.0 · Ray 14d ago
package.json Brief: a diode is polarised (pin 1 = cathode); the "Unpolarised two-terminal part" sentence was wrong · Ray 3h ago
page.json brief: polarity sentence corrected · Ray 3h ago
README.md Publish 0.1.0 · Ray 14d ago

HMSMBJ28A

HXY MOSFET · ESD And Surge Protection (TVS/ESD) · SMB(DO-214AA)

HMSMBJ28A from HXY MOSFET, in a SMB(DO-214AA). 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 HXY MOSFET
Package SMB(DO-214AA)
Category Circuit Protection
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 pulse power dissipation PPPM 600 W 10/1000μs waveform (Note1, Note2, Fig.1) 1
Steady state power dissipation PM(AV) 1 W TA=50℃ (Fig.5) 1
Peak forward surge current IFSM 100 A 8.3ms single half sine-wave superimposed on rated load, (JEDEC Method) (Note3, Fig.6) 1
Operating junction and storage temperature range TJ,TSTG -55 150 °C 1
Thermal resistance junction to lead RθJL 30 °C/W Typical 1
Thermal resistance junction to ambient RθJA 100 °C/W Typical 1
Reverse stand-off voltage VRWM 28 V Ta=25°C 1
Breakdown voltage V(BR) 31 34.4 V @IT, Ta=25°C 1
Test current IT 1 mA Ta=25°C 1
Maximum clamping voltage VC 45.4 V @IPP, Ta=25°C 1
Peak pulse current IPP 13.3 A Ta=25°C 1
Reverse leakage current IR 1 μA @VRWM, Ta=25°C 1

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper 2. Mounted on 5.0mm×5.0mm (0.03mm thick) copper pads to each terminal. 1

CAD (KiCad official)

  • Symbol: HMSMBJ28A
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
  • 3D model files: hmsmbj28a-etched.step / hmsmbj28a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hmsmbj28a.step / hmsmbj28a.glb are the bare package body.

Provenance

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

  • Datasheet: HXY MOSFET datasheet (4 pp, sha256 e114c0b757de8451, retrieved 2026-10-26, 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