component

SMA2Z27A

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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sma2z27a-etched.step sma2z27a: factory component page (tier=lcsc) · Ray 6d ago
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SMA2Z27A

YFW · Zener Diodes · SMA

SMA2Z27A 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 Cathode terminal, identified by the polarity symbol marked on the molded body; the datasheet gives no separate electrical limits for this pin beyond the 2.0 W DC power dissipation at TL = 50 °C (Note 1) for the device.
2 Anode passive Anode terminal, the opposite polarity end of the two-terminal device; the datasheet gives no separate 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
Zener voltage VZ (nominal, min, max) VZ 25.65 27 28.35 V @IZT, IZT = 18.5 mA 2
Maximum zener impedance ZZT ZZT 18 Ω @IZT = 18.5 mA 2
Maximum zener impedance ZZK ZZK 750 Ω @IZK = 0.25 mA 2
Maximum reverse leakage current IR 0.5 uA @VR = 20.6 V 2
Maximum DC zener current IZM 68 mA 2
Maximum forward voltage VF 1.2 V at IF = 200 mA 1
DC power dissipation PD 2 W at TL = 50 °C (Note 1) 1
Junction temperature range TJ -55 150 °C 1
Storage temperature range Ts -55 150 °C 1
Zener voltage tolerance -5 5 % Standard zener voltage tolerance (features list) 1

CAD (KiCad official)

  • Symbol: SMA2Z27A
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA (KiCad packages3D, STEP)
  • 3D model files: sma2z27a-etched.step / sma2z27a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sma2z27a.step / sma2z27a.glb are the bare package body.

Provenance

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

  • Datasheet: YFW datasheet (4 pp, sha256 fbbf992c8973accd, retrieved 2026-10-21, 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