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BZV55B4V3

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LGE Zener Diodes, SOD-80. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BZV55B4V3

LGE · Zener Diodes · SOD-80

BZV55B4V3 from LGE, in a SOD-80. 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 (negative polarity terminal) of the zener, marked by the blue color band; the BZV55B4V3 has VZ of 4.21 to 4.39 V at IZT = 5 mA.
2 A passive Anode terminal of the zener, opposite the blue color band; the part is rated for 500 mW power dissipation.

Key specifications

Parameter Value
Manufacturer LGE
Package SOD-80
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 VZ 4.21 4.39 V IZT=5 mA, TA=25°C 4
Differential Zener Impedance ZZT 75 Ω IZT=5 mA 4
Knee Zener Impedance ZZK 600 Ω IZK=1.0 mA 4
Reverse Current IR 1 uA VR=1.0 V 4
Forward Voltage VF 1 V IF=100 mA 4
Power Dissipation Ptot 500 mW 25°C ambient 1
Operating and Storage Temperature Range TJ, TSTG -65 200 °C 1
Thermal Resistance Junction to Ambient RthJA 300 K/W Single pulse (Figure 10) 3
Zener Test Current IZT 5 mA test current for VZ 4

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 Matte Tin(Sn) lead finish Blue color band indicates negative polarity 1

CAD (KiCad official)

  • Symbol: BZV55B4V3
  • Footprint: Diode_SMD:D_MiniMELF
  • 3D model: SOD-80 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: LGE datasheet (4 pp, sha256 27c49b8081efee7a, retrieved 2026-10-22, tier: lcsc)
  • 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