component
DTC124ECA
Public Made by Adomby adom
Yangzhou Yangjie Elec Tech 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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Contents
README
markdownDTC124ECA
Yangzhou Yangjie Elec Tech · Digital Transistors · SOT-23
DTC124ECA from Yangzhou Yangjie Elec Tech, 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 | IN | input | Input pin connected through built-in R1 (15.4 to 28.6 kΩ) to the transistor base; input voltage rated -10 V to +40 V. |
| 2 | GND | power_in | Ground pin connected to the NPN emitter and to R2 of the built-in bias network. |
| 3 | OUT | output | Open-collector output of the NPN transistor, rated 100 mA maximum output current and 50 V supply voltage. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | SOT-23 |
| Category | Transistors |
| 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 | 40 | V | 1 | ||
| Output Current | IO | 100 | mA | 1 | |||
| Power Dissipation | PD | 200 | mW | 1 | |||
| Junction Temperature | Tj | 150 | ℃ | 1 | |||
| Storage Temperature | TSTG | -55 | 150 | ℃ | 1 | ||
| Input voltage (off) | VI(off) | 0.5 | V | VCC=5V,Ic=100uA | 2 | ||
| Input voltage (on) | VI(on) | 3 | V | V0=0.2V,Ic=5mA | 2 | ||
| Output voltage (on) | Vo(on) | 0.3 | V | Io /Ii =10mA/0.5 mA | 2 | ||
| Input current | II | 0.36 | mA | VI=5V | 2 | ||
| Output current (off) | IO(off) | 0.5 | uA | VCC=50V, Vi=0 | 2 | ||
| DC current gain | GI | 56 | Vo=5V, Io =5mA | 2 | |||
| Input resistance | R1 | 15.4 | 22 | 28.6 | kΩ | 2 | |
| Resistance ratio | R2/R1 | 0.8 | 1 | 1.2 | 2 | ||
| Transition frequency | fT | 250 | MHz | Vo=10V,IO=-5mA,f=100MHz | 2 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
CAD (KiCad official)
- Symbol:
DTC124ECA - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
dtc124eca-etched.step/dtc124eca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dtc124eca.step/dtc124eca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (5 pp, sha256
ad8b3b61f1f08b85, retrieved 2026-11-04, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).