component

SMBJ51CD-M3

Public Made by Adom

by adom

Vishay Intertech TVS, SMB(DO-214AA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentcircuit protectionsmbj51cd-m3factory-2.0.0extractor-text

Changed since verified SMBJ51CD-M3

by Ray · last 31 Oct 2026 · 1 record · files changed since
SymbolFootprint3D modelPins

Verification log 1 record

31 Oct 2026RayPublished by the parts factory: tier mfr, 2 pinschanged since
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: SMBJ51CD-M3 · SMB(DO-214AA) · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: all 2 pin names found in the 5-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: D_SMB
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-c_pwb9d7/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.4)
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files! smbj51cd-m3.kicad_sym✓ smbj51cd-m3.kicad_mod✓ smbj51cd-m3.step
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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 6d ago
viewers smbj51cd-m3: symbol repaired (bidirectional TVS (the page says so)) · Ray 2d ago
package.json Publish 0.1.0 · Ray 6d ago
page.json Set visibility: public · Ray 6d ago
README.md Publish 0.1.0 · Ray 6d ago
smbj51cd-m3-etched.glb Publish 0.1.0 · Ray 6d ago
smbj51cd-m3-etched.step smbj51cd-m3: factory component page (tier=mfr) · Ray 6d ago
smbj51cd-m3-hero.glb smbj51cd-m3: hero GLB from the etched model (keeps the MPN mark) · Ray 6d ago
smbj51cd-m3-hero.overlay.json Publish 0.1.0 · Ray 6d ago
smbj51cd-m3.glb Publish 0.1.0 · Ray 6d ago
smbj51cd-m3.kicad_mod Publish 0.1.0 · Ray 6d ago
smbj51cd-m3.kicad_sym smbj51cd-m3: symbol repaired (bidirectional TVS (the page says so)) · Ray 2d ago
smbj51cd-m3.lbr smbj51cd-m3: symbol repaired (bidirectional TVS (the page says so)) · Ray 2d ago
smbj51cd-m3.step Publish 0.1.0 · Ray 6d ago
verification.json Verified: Published by the parts factory: tier mfr, 2 pins · Ray 6d ago

SMBJ51CD-M3

Vishay Intertech · TVS · SMB(DO-214AA)

SMBJ51CD-M3 from Vishay Intertech, 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 A1 passive Bidirectional TVS terminal 1 with no cathode band; electrical characteristics apply in both directions (VWM 51 V, VBR 57.6 V to 61.8 V at 1.0 mA, VC 81.2 V at IPPM 7.40 A).
2 A2 passive Bidirectional TVS terminal 2 with no cathode band; interchangeable with terminal 1 and rated 600 W peak pulse power (10/1000 μs).

Key specifications

Parameter Value
Manufacturer Vishay Intertech
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
Breakdown voltage VBR 57.6 61.8 V at IT = 1.0 mA, pulse test tp ≤ 50 ms 2
Reverse stand-off voltage VWM 51 V 2
Maximum reverse leakage current ID 0.5 μA at VWM 2
Maximum peak pulse surge current IPPM 7.4 A surge waveform per fig. 3 2
Maximum clamping voltage VC 81.2 V at IPPM 2
VBR tolerance -3.5 3.5 % very tight VBR tolerance (features) 1
Test current IT 1 mA VBR test 2
Peak pulse power dissipation PPPM 600 W 10/1000 μs waveform, TA = 25 °C 1
Power dissipation (infinite heatsink) PD 5 W TM = 50 °C 1
Power dissipation (minimum pad layout) PD 1 W TA = 25 °C 1
Operating junction and storage temperature range TJ, TSTG -55 150 °C 1
Thermal resistance, junction to ambient RθJA 125 °C/W mounted on minimum recommended pad layout 3
Thermal resistance, junction to ambient RθJA 100 °C/W mounted on 5.0 mm x 5.0 mm copper pad area 3
Thermal resistance, junction to mount RθJM 20 °C/W 3

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 tin Terminals: matte tin plated leads, solderable per J-STD-002 and JESD 22-B102 1

CAD (KiCad official)

  • Symbol: SMBJ51CD-M3
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
  • 3D model files: smbj51cd-m3-etched.step / smbj51cd-m3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smbj51cd-m3.step / smbj51cd-m3.glb are the bare package body.

Provenance

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

  • Datasheet: Vishay Intertech datasheet (5 pp, sha256 c1e92b4c130e4dc1, retrieved 2026-10-31, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-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