component

3SMA5919B

Public Made by Adom

by adom

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

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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3SMA5919B

YFW · Zener Diodes · SMA

3SMA5919B from YFW, 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 Cathode passive The cathode is the end marked by the color band, per the datasheet polarity note ("Color band denotes cathode end except Bipolar"). The datasheet gives no further electrical limits for this pin.
2 Anode passive The anode is the terminal opposite the cathode band. The datasheet gives no further electrical limits for this pin.

Key specifications

Parameter Value
Manufacturer YFW
Package SMA
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
Nominal Zener voltage (min) Vz 5.32 V Ta = 25°C; IZT = 134 mA 2
Nominal Zener voltage Vz 5.6 V Ta = 25°C; IZT = 134 mA 2
Nominal Zener voltage (max) Vz 5.88 V Ta = 25°C; IZT = 134 mA 2
Maximum DC Zener current IZM 481 mA DC 2
Forward voltage VF 1.5 V IF = 200 mA (DC) 1
Power dissipation PD 3 W TC = 75°C 1
Zener impedance ZZT 2.5 Ω @ IZT = 134 mA 2
Zener impedance (knee) ZZK 600 Ω @ IZK = 1 mA 2
Reverse leakage current IR 10 μA @ VR = 2 V 2

CAD (KiCad official)

  • Symbol: 3SMA5919B
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA (KiCad packages3D, STEP)
  • 3D model files: 3sma5919b-etched.step / 3sma5919b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 3sma5919b.step / 3sma5919b.glb are the bare package body.

Provenance

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

  • Datasheet: YFW datasheet (3 pp, sha256 aded06248980ea68, retrieved 2026-10-16, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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