component

S-LMBZ27VALT1G

Public Made by Adom

by adom

LRC ESD And Surge Protection (TVS/ESD), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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S-LMBZ27VALT1G

LRC · ESD And Surge Protection (TVS/ESD) · SOT-23

S-LMBZ27VALT1G 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 K1 passive Cathode of the first Zener diode (diode 1 to common anode pin 3), 27 V nominal breakdown (25.65 V to 28.35 V at IT = 1 mA) for ESD protection.
2 K2 passive Cathode of the second Zener diode (diode 2 to common anode pin 3), 27 V nominal breakdown (25.65 V to 28.35 V at IT = 1 mA) for ESD protection.
3 A passive Common anode of both Zener diodes, connected to the two cathode pins 1 and 2 through the diodes.

Key specifications

Parameter Value
Manufacturer LRC
Package SOT-23
Category Circuit Protection
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
Breakdown Voltage (IT = 1mA) VBR 25.65 27 28.35 V IT = 1mA 2
Maximum Reverse Leakage Current IR 50 nA VRWM = 22V 2
Clamping Voltage VC 38 V IPP = 1A 2
Junction Capacitance Cj 60 pF f=1MHz, Level=50mV, VR=0V 2
Maximum Temperature Coefficient of VBR θVBR 24.3 mV/°C 2
Forward Voltage VF 0.9 V IF = 10 mA 2
Peak Power Dissipation Ppk 40 W @ 1.0 ms, non-repetitive current pulse (Note 1) 1
Total Power Dissipation PD 250 mW @TA=25°C (Note 2) 1
Thermal Resistance Junction-to-Ambient RθJA 500 °C/W Note 2 1
Lead Solder Temperature TL 260 °C 10 second duration 1
Storage Temperature Range Tstg -55 150 °C 1
Junction Temperature Range TJ -55 150 °C 1

CAD (KiCad official)

  • Symbol: S-LMBZ27VALT1G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: s-lmbz27valt1g-etched.step / s-lmbz27valt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); s-lmbz27valt1g.step / s-lmbz27valt1g.glb are the bare package body.

Provenance

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

  • Datasheet: LRC datasheet (6 pp, sha256 83ac60323fa5d4df, retrieved 2026-10-18, 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