component
DTC143TE
Public Made by Adomby adom
Changjing Digital Transistors, SOT-523. 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
markdownDTC143TE
Changjing · Digital Transistors · SOT-523
DTC143TE from Changjing, in a SOT-523. 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 | IN | input | Input terminal of the digital transistor, with a built-in bias input resistor R1 of 4.7 kΩ typical (3.29 kΩ min, 6.11 kΩ max), so no external input resistor is needed. |
| 2 | GND | power_in | Ground reference pin for the device. |
| 3 | OUT | output | Output terminal of the NPN digital transistor; the datasheet limits for the device are VCEO 50 V and IC 100 mA maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-523 |
| 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 |
|---|---|---|---|---|---|---|---|
| Collector-base breakdown voltage | V(BR)CBO | 50 | V | Ic=50µA,IE=0 | 2 | ||
| Collector-emitter breakdown voltage | V(BR)CEO | 50 | V | Ic=1mA,IB=0 | 2 | ||
| Emitter-base breakdown voltage | V(BR)EBO | 5 | V | IE=50µA,IC=0 | 2 | ||
| Collector cut-off current | ICBO | 0.5 | μA | VCB=50V,IE=0 | 2 | ||
| Emitter cut-off current | IEBO | 0.5 | μA | VEB=4V,IC=0 | 2 | ||
| Collector-emitter saturation voltage | VCE(sat) | 0.3 | V | IC=5mA,IB=0.25mA | 2 | ||
| DC current gain | hFE | 100 | 600 | VCE=5V,IC=1mA | 2 | ||
| Input resistor R1 | R1 | 3.29 | 4.7 | 6.11 | kΩ | 2 | |
| Transition frequency | fT | 250 | MHz | VCE=10V,IE=-5mA, f=100MHz | 2 | ||
| Collector-base voltage | VCBO | 50 | V | 2 | |||
| Collector-emitter voltage | VCEO | 50 | V | 2 | |||
| Emitter-base voltage | VEBO | 5 | V | 2 | |||
| Collector current | IC | 100 | mA | 2 | |||
| Power dissipation (DTC143TE, SOT-523 column) | PD | 150 | mW | 2 | |||
| Junction temperature | Tj | 150 | ℃ | 2 | |||
| Storage temperature | Tstg | -55 | 150 | ℃ | 2 |
CAD (KiCad official)
- Symbol:
DTC143TE - Footprint:
Package_TO_SOT_SMD:SOT-523 - 3D model: SOT-523, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 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:
dtc143te-etched.step/dtc143te-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dtc143te.step/dtc143te.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (15 pp, sha256
8354b7550ef886aa, retrieved 2026-10-18, 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).