component

LMBZ5221BLT1G

Public Made by Adom

by adom

LRC Zener Diodes, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LMBZ5221BLT1G

LRC · Zener Diodes · SOT-23

LMBZ5221BLT1G from LRC, in a SOT-23. 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 Anode passive Anode of the Zener diode; the datasheet gives a forward voltage of 0.95 V max at IF = 10 mA.
2 NC unconnected No connection; the datasheet pinout lists this pin as not connected.
3 Cathode passive Cathode of the Zener diode, indicated by the polarity band on the package.

Key specifications

Parameter Value
Manufacturer LRC
Package SOT-23
Category Diodes
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Reverse Zener Voltage VZ 2.28 2.4 2.52 V @ IZT 20 mA; Note 3 pulse test at 25°C 3
Maximum Zener Impedance ZZT 30 @ IZT 20 mA 3
Maximum Zener Impedance ZZK 1200 @ IZK 0.25 mA 3
Reverse Leakage Current IR 100 A @ VR 1 V 3
Forward Voltage VF 0.9 V @ IF 10 mA 3
Total Power Dissipation on FR-5 Board PD 225 mW FR-5 board (Note 1), TA = 25°C 1
Total Power Dissipation on Alumina Substrate PD 300 mW Alumina substrate (Note 2), TA = 25°C 1
Thermal Resistance Junction-to-Ambient on FR-5 Board RJA 556 °C/W FR-5 board (Note 1) 1
Thermal Resistance Junction-to-Ambient on Alumina Substrate RJA 417 °C/W Alumina substrate (Note 2) 1
Junction and Storage Temperature Range TJ,Tstg -65 150 °C 1

CAD (KiCad official)

  • Symbol: LMBZ5221BLT1G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: lmbz5221blt1g-etched.step / lmbz5221blt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lmbz5221blt1g.step / lmbz5221blt1g.glb are the bare package body.

Provenance

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

  • Datasheet: LRC datasheet (6 pp, sha256 6a89f966292ecd91, retrieved 2026-10-18, 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