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SMAJ51AQ-13-F

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

componenttvs-fuse-board level protectionsmaj51aq-13-ffactory-2.0.0extractor-text

Verified SMAJ51AQ-13-F

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

Verification log 1 record

31 Oct 2026RayPublished by the parts factory: tier mfr, 2 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: SMAJ51AQ-13-F · SMA · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: unpolarised two-terminal part: pins 1 and 2 by library convention, no names to check
  • ✓distributor: lcsc C3711488, digikey 31-SMAJ51AQ-13-FTR-ND, mouser 621-SMAJ51AQ-13-F
  • ✓family: D_SMA
  • ✓files: 6 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-bndvbx5n/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 1 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.5)
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 1 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ smaj51aq-13-f.kicad_sym✓ smaj51aq-13-f.kicad_mod✓ smaj51aq-13-f.step
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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

markdown

SMAJ51AQ-13-F

Diodes Incorporated · TVS · SMA

SMAJ51AQ-13-F from Diodes Incorporated, in a SMA. 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 1 passive Terminal 1 of an unpolarised fuse; either orientation.
2 2 passive Terminal 2 of an unpolarised fuse; either orientation.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SMA
Category TVS/Fuse/Board Level 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
Reverse Standoff Voltage VRWM 51 V 3
Breakdown Voltage VBR 56.7 62.7 V @ IT = 1.0 mA, measured with IT current pulse = 10ms to 15ms 3
Test Current IT 1 mA 3
Max Reverse Leakage IR 5 µA @ VRWM 3
Max Clamping Voltage VC 82.4 V @ IPP = 4.9 A, per 10x1000µs waveform 3
Max Peak Pulse Current IPP 4.9 A Per 10x1000µs waveform 3
Peak Pulse Power Dissipation PPK 400 W Non-repetitive current pulse, derated above TA = +25°C, TA = +25°C 2
Peak Forward Surge Current IFSM 40 A 8.3ms single half sine wave superimposed on rated load, uni-directional only 2
Steady-State Power Dissipation PM(AV) 1 W @ TL = +75°C 2
Instantaneous Forward Voltage VF 3.5 V @ IPP = 35A, uni-directional only 2
Operating Temperature Range TJ -55 150 °C 2
Storage Temperature Range TSTG -55 175 °C 2

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: Lead-Free Plating (Matte Tin Finish). Solderable per MIL-STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: SMAJ51AQ-13-F
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (6 pp, sha256 5aa5832480b30857, retrieved 2026-10-31, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal 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