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SMA6J28A-TR

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STMicroelectronics TVS, SMA(DO-214AC). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentcircuit protectionsma6j28a-trfactory-2.0.0extractor-text

Changed since verified SMA6J28A-TR

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: SMA6J28A-TR · SMA(DO-214AC) · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: all 2 pin names found in the 13-page datasheet
  • ✓distributor: lcsc C1973100, digikey 497-5931-2-ND, mouser 511-SMA6J28A-TR
  • ✓family: D_SMA
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-tru7soqh/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.8)
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files! sma6j28a-tr.kicad_sym✓ sma6j28a-tr.kicad_mod✓ sma6j28a-tr.step
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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

markdown

SMA6J28A-TR

STMicroelectronics · TVS · SMA(DO-214AC)

SMA6J28A-TR from STMicroelectronics, in a SMA(DO-214AC). 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 of the unidirectional TVS diode, marked by the cathode band on the package; for the bidirectional CA types the terminals are interchangeable.
2 A passive Anode of the unidirectional TVS diode (SMA6J28A is a 28 V stand-off type with 31.1 V to 34.4 V breakdown at 1 mA); for the bidirectional CA types the terminals are interchangeable.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SMA(DO-214AC)
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 PPP 600 W Tj initial = Tamb 2
Power dissipation on infinite heatsink P 4 W Tamb = 55 °C 2
Storage temperature range Tstg -65 175 °C 2
Operating junction temperature range Tj -55 175 °C 2
Maximum lead temperature for soldering TL 260 °C during 10 s 2
Thermal resistance junction to leads Rth(j-l) 30 °C/W 2
Thermal resistance junction to ambient Rth(j-a) 120 °C/W on printed circuit on recommended pad layout 2
Reverse leakage current IRM 0.2 µA at VRM, 25 °C 3
Reverse leakage current IRM 1 µA at VRM, 85 °C 3
Stand-off voltage VRM 28 V 3
Breakdown voltage VBR 31.1 32.7 34.4 V at IR = 1 mA 3
Clamping voltage 10/1000 µs VCL 44 V 10/1000 µs, IPP = 13.8 A 3
Peak pulse current 10/1000 µs IPP 13.8 A 10/1000 µs 3
Dynamic resistance 10/1000 µs RD 0.697 Ω 10/1000 µs 3
Clamping voltage 8/20 µs VCL 59 V 8/20 µs, IPP = 68 A 3
Peak pulse current 8/20 µs IPP 68 A 8/20 µs 3
Dynamic resistance 8/20 µs RD 0.363 Ω 8/20 µs 3
Voltage temperature coefficient αT 9.8 10-4/°C 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 copper copper surface under each lead (printed circuit board 6

CAD (KiCad official)

  • Symbol: SMA6J28A-TR
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: sma6j28a-tr-etched.step / sma6j28a-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sma6j28a-tr.step / sma6j28a-tr.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (13 pp, sha256 6de68bfe2405caa1, 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