component
LDTC143XLT1G
Public Made by Adomby adom
LRC Digital Transistors, SOT-23. 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
markdownLDTC143XLT1G
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ldtc143xlt1g.step/ldtc143xlt1g.glbare 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, 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).