component
LDTC144EM3T5G
Public Made by Adomby adom
LRC Digital Transistors, SOT-723. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLDTC144EM3T5G
LRC · Digital Transistors · SOT-723
LDTC144EM3T5G from LRC, in a SOT-723. 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, connected through the internal series base resistor R1 (47 kΩ typical for LDTC144EM3T5G, range 32.9 to 61.1 kΩ) to the transistor base. |
| 2 | EMITTER | power_in | Emitter, labeled GROUND in the datasheet; it is the common reference for the monolithic base-emitter resistor R2 and the transistor emitter. |
| 3 | COLLECTOR | output | Collector, labeled OUTPUT in the datasheet; rated for 50 Vdc VCEO and 100 mAdc collector current maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOT-723 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
LDTC144EM3T5G - Footprint:
Package_TO_SOT_SMD:SOT-723 - 3D model: SOT-723, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.5 mm nominal SOT-723 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
ldtc144em3t5g-etched.step/ldtc144em3t5g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ldtc144em3t5g.step/ldtc144em3t5g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (14 pp, sha256
38240794001c5a30, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).