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docs lmun2235lt1g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
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lmun2235lt1g-etched.fit.json lmun2235lt1g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
lmun2235lt1g-etched.glb lmun2235lt1g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
lmun2235lt1g-etched.step lmun2235lt1g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
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README.md lmun2235lt1g: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago

LMUN2235LT1G

LRC · Digital Transistors · SOT-23

LMUN2235LT1G from LRC, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 BASE input Base input pin. Drives the internal NPN transistor through the integrated base series resistor R1 = 2.2 kΩ; a shunt resistor R2 = 47 kΩ is connected between the internal base node and the emitter.
2 EMITTER passive Emitter of the internal NPN transistor. Typically tied to circuit ground in low-side switch configurations. Also serves as the return for the internal shunt resistor R2.
3 COLLECTOR output Collector output of the internal NPN transistor. Maximum collector current IC = 100 mA; VCEO = 50 V, VCBO = 50 V. Connect through a load to the supply for switching applications.

Key specifications

Parameter Value
Manufacturer LRC
Package SOT-23
Category Transistors/Thyristors
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • LMUN2235LT1G
  • LMUN2235LT1GLT3G

CAD (KiCad official)

  • Symbol: LMUN2235LT1G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: lmun2235lt1g-etched.step / lmun2235lt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lmun2235lt1g.step / lmun2235lt1g.glb are the bare package body.

Provenance

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

  • Datasheet: LRC datasheet (16 pp, sha256 fbd038062603f087, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF