component

LDTC143XLT1G

Public Made by Adom

by adom

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

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LDTC143XLT1G

LRC · Digital Transistors · SOT-23

LDTC143XLT1G 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 BASE input Base input of the built-in NPN transistor, which carries the integrated bias resistor network (R1 4.7 kΩ per the device marking table) so no external input resistor is needed; input voltage VIN is rated −10 V to +10 V.
2 EMITTER passive Emitter of the built-in NPN transistor, serving as the reference terminal for the bias network and the inverter configuration; the datasheet gives no separate electrical limit for this pin.
3 COLLECTOR output Collector output of the built-in transistor, rated for output current IO up to 100 mA with supply voltage VCC up to 50 V and device power dissipation of 200 mW.

Key specifications

Parameter Value
Manufacturer LRC
Package SOT-23
Category Transistors/Thyristors
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
Supply voltage VCC 50 V 1
Input voltage VIN -10 10 V 1
Output current IC 100 mA 1
Power dissipation PD 200 mW 1
Junction temperature Tj 150 °C 1
Storage temperature Tstg -55 150 °C 1
Input resistance R1 3.29 4.7 6.11 kΩ 1
Resistance ratio R2/R1 1.7 2.1 2.6 − 1
DC current gain GI 30 − VO=5V, IO=10mA 1

CAD (KiCad official)

  • Symbol: LDTC143XLT1G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ldtc143xlt1g-etched.step / ldtc143xlt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ldtc143xlt1g.step / ldtc143xlt1g.glb are the bare package body.

Provenance

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

  • Datasheet: LRC datasheet (3 pp, sha256 8c23e301e4ca1e77, retrieved 2026-10-17, 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