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BZV55C18 L1G

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Taiwan Semiconductor(Taiwan Semicon) Zener Diodes, MiniMELF. Diode: pin 1 is the cathode (the banded end) by the KiCad diode-footprint convention, KiCad symbol/footprint/3D.

componentdiodesbzv55c18 l1gfactory-2.0.0extractor-text

Changed since verified BZV55C18 L1G

by Ray · last 30 Oct 2026 · 1 record · files changed since
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier lcsc, 2 pinschanged since
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: BZV55C18 L1G · MiniMELF · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: all 2 pin names found in the 6-page datasheet
  • •distributor (warn): no ['digikey'] number
  • ✓family: D_MiniMELF
  • ✓files: 6 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-vd_o4tse/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 1 records
  • •package_fit (skip): the datasheet dimensions give no height or body size to compare (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! bzv55c18-l1g.kicad_sym✓ bzv55c18-l1g.kicad_mod✓ bzv55c18-l1g.step
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Ray Publish 0.1.0 d24f68f

BZV55C18 L1G

Taiwan Semiconductor(Taiwan Semicon) · Zener Diodes · MiniMELF

BZV55C18 L1G from Taiwan Semiconductor(Taiwan Semicon), in a MiniMELF. 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 Taiwan Semiconductor(Taiwan Semicon)
Package MiniMELF
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 (nominal VZ at IZT) VZ 16.8 18 19.1 V IZT = 5 mA; pulsed 30 ms (Note 1) 2
Zener voltage tolerance -5 5 % Standard tolerance on normal zener voltage (Note 2) 3
Zener impedance ZZT 50 Ω @ IZT = 5 mA 2
Zener knee impedance ZZK 170 Ω @ IZK = 1.0 mA 2
Leakage current IR 0.1 µA @ VR = 13 V 2
Power dissipation PD 500 mW 1
Forward voltage VF 1 V @ IF = 10 mA 1
Junction temperature range TJ -65 175 °C 1
Storage temperature range TSTG -65 175 °C 1
Junction-to-ambient thermal resistance RθJA 300 °C/W 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 tin ● Terminal: Matte tin plated leads, solderable per J-STD-002 ● Polarity: Indicated by cathode band 1

CAD (KiCad official)

  • Symbol: BZV55C18 L1G
  • Footprint: Diode_SMD:D_MiniMELF
  • 3D model: MiniMELF (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Taiwan Semiconductor(Taiwan Semicon) datasheet (6 pp, sha256 e108fdeec0e282cf, retrieved 2026-10-30, 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