component
DDTA123YCA
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
markdownDDTA123YCA
Yangzhou Yangjie Elec Tech · Digital Transistors · SOT-23
DDTA123YCA 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 through built-in series resistor R1 (typ. 2.2 kΩ) to the PNP base; input voltage rated -12 V to +5 V. |
| 2 | GND | power_in | Ground/common (GND(+)) connected to the emitter and R2; this is the positive reference for the PNP, with supply voltage VCC rated -50 V. |
| 3 | OUT | output | Output (collector) of the PNP digital transistor, rated for output current up to -500 mA. |
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 | -12 | 5 | V | 1 | ||
| Output Current | IO | -500 | mA | 1 | |||
| Power Dissipation | PD | 200 | mW | 1 | |||
| Junction Temperature | Tj | 150 | ℃ | 1 | |||
| Storage Temperature | TSTG | -55 | 150 | ℃ | 1 | ||
| DC current gain | GI | 56 | Vo=-5V, Io=-50mA | 2 | |||
| Input resistance | R1 | 1.54 | 2.2 | 2.86 | kΩ | 2 | |
| Resistance ratio | R2/R1 | 3.6 | 4.5 | 5.5 | 2 | ||
| Input voltage (off) | VI(off) | -0.5 | V | VCC=-5V,Ic=-100uA | 2 | ||
| Input voltage (on) | VI(on) | -2 | V | VO=-0.3V,Ic=-20mA | 2 | ||
| Output voltage | Vo(on) | -0.3 | V | Io /Ii =-10mA/-0.5 mA | 2 | ||
| Input current | II | -3.8 | mA | VI=-5V | 2 | ||
| Output current (off) | IO(off) | -0.5 | uA | VCC=-50V, Vi=0 | 2 | ||
| Transition frequency | fT | 200 | MHz | VCE=-10V,IE=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:
DDTA123YCA - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ddta123yca-etched.step/ddta123yca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ddta123yca.step/ddta123yca.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
69840b77c507cc57, retrieved 2026-10-28, 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).