component
DTA143ECA
Public Made by Adomby adom
Changjing 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
markdownDTA143ECA
Changjing · Digital Transistors · SOT-23
DTA143ECA from Changjing, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | IN | input | Inverter input; accepts -30 to +10 V with -3 V (on) to -0.5 V (off) logic thresholds and -1.8 mA input current at -5 V. |
| 2 | GND | power_in | Ground; common reference for supply and signal. |
| 3 | OUT | output | Inverter output; provides -0.3 V at -100 mA maximum with -0.5 µA off-state leakage at -50 V VCC. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| 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 |
|---|---|---|---|---|---|---|---|
| Input resistance | R1 | 3.29 | 4.7 | 6.11 | kΩ | 2 | |
| Resistance ratio | R2/R1 | 0.8 | 1 | 1.2 | 2 | ||
| DC current gain | GI | 30 | VO=-5V,IO=-10mA | 2 | |||
| Input voltage (off) | VI(off) | -0.5 | V | VCC=-5V,IO=-100µA | 2 | ||
| Input voltage (on) | VI(on) | -3 | V | VO=-0.3V,IO=-20 mA | 2 | ||
| Output voltage (on) | VO(on) | -0.3 | V | IO/II=-10mA/-0.5mA | 2 | ||
| Input current | II | -1.8 | mA | VI=-5V | 2 | ||
| Output current (off) | IO(off) | -0.5 | μA | VCC=-50V,VI=0 | 2 | ||
| Supply voltage | VCC | -50 | V | 2 | |||
| Input voltage | VIN | -30 | 10 | V | 2 | ||
| Output current | IO | -100 | mA | 2 | |||
| Power dissipation | PD | 200 | mW | Ta=25℃, SOT-23 (CA column) | 2 | ||
| Junction temperature | Tj | 150 | ℃ | 2 | |||
| Storage temperature | Tstg | -55 | 150 | ℃ | 2 | ||
| Transition frequency | fT | 250 | MHz | VO=-10V,IO=-5mA,f=100MHz | 2 |
CAD (KiCad official)
- Symbol:
DTA143ECA - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
dta143eca-etched.step/dta143eca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dta143eca.step/dta143eca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (15 pp, sha256
82b6b0ad34fcf8ac, retrieved 2026-09-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).