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1SMB5925B

Public Made by Adom

by adom

LGE Zener Diodes, 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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1SMB5925B

LGE · Zener Diodes · SMB

1SMB5925B from LGE, 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, indicated by the polarity band; the zener (10 V at 37.5 mA for 1SMB5925B) is reverse-biased with this pin positive.
2 A passive Anode; the datasheet gives no pin numbers, only that the cathode is marked by the polarity band, so the numbering is assumed.

Key specifications

Parameter Value
Manufacturer LGE
Package SMB
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 Tolerance (suffix B) VZ -5 5 % Suffix B indicates ±5% tolerance 2
Nominal Zener Voltage VZ 10 V @ IZT = 37.5 mA 2
Zener Test Current IZT 37.5 mA 2
Maximum Zener Impedance ZZT 4.5 Ω @ IZT 2
Maximum Zener Impedance (knee) ZZK 500 Ω @ IZK = 0.25 mA 2
Maximum Reverse Leakage Current IR 5 μA @ VR = 8.0 V 2
Maximum DC Zener Current IZM 150 mA 2
Maximum Forward Voltage VF 1.5 V IF = 200 mA 1
Steady State Power Dissipation PD 3 W TL = 75°C, measured at zero lead length 1
Power Derating Above 75 °C 40 mW/°C Derate above 75 °C 1
Steady State Power Dissipation PD 550 mW Ta = 25 °C, measured at zero lead length 1
Power Derating Above 25 °C 4.4 mW/°C Derate above 25 °C 1
Junction Temperature Range TJ -65 150 °C 1
Storage Temperature Range Tstg -65 150 °C 1
Thermal Resistance Junction to Lead RθJL 25 °C/W 1
Thermal Resistance Junction to Ambient RθJA 226 °C/W 1

CAD (KiCad official)

  • Symbol: 1SMB5925B
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: 1smb5925b-etched.step / 1smb5925b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1smb5925b.step / 1smb5925b.glb are the bare package body.

Provenance

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

  • Datasheet: LGE datasheet (3 pp, sha256 075448497bd604f2, 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