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SMB3Z82A

Public Made by Adom

by adom

XCH(旭昌辉) , SMB. 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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SMB3Z82A

XCH(旭昌辉) · IC · SMB

SMB3Z82A from XCH(旭昌辉), in a SMB. 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, marked by the color band; for the 82 V part it goes positive in reverse (Zener) operation, with VZ 77.90 to 86.10 V at IZT 9.1 mA and max DC Zener current 33 mA.
2 A passive Anode, the end opposite the color band; forward voltage max 1.2 V at 200 mA, with power dissipation 3.0 W at TL = 75 °C.

Key specifications

Parameter Value
Manufacturer XCH(旭昌辉)
Package SMB
Category
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 77.9 82 86.1 V @ IZT = 9.1 mA 3
Maximum zener impedance ZZT 95 Ω @ IZT = 9.1 mA 3
Maximum zener impedance ZZK 3000 Ω @ IZK = 0.25 mA 3
Maximum reverse leakage current IR 0.5 µA @ VR = 62.2 V 3
Maximum DC zener current IZM 33 mA 3
Maximum forward voltage VF 1.2 V at IF = 200mA 1
DC power dissipation PD 3 W at TL = 75 °C (note 1) 1
Junction temperature range TJ -55 150 ℃ 1
Storage temperature range TSTG -55 150 ℃ 1

CAD (KiCad official)

  • Symbol: SMB3Z82A
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: smb3z82a-etched.step / smb3z82a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smb3z82a.step / smb3z82a.glb are the bare package body.

Provenance

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

  • Datasheet: XCH(旭昌辉) datasheet (3 pp, sha256 f7084c044e53fbe6, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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