component
AD-DTA143EM
Public Made by Adomby adom
Changjing Digital Transistors, SOT-723. 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
markdownAD-DTA143EM
Changjing · Digital Transistors · SOT-723
AD-DTA143EM from Changjing, in a SOT-723. 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 of the PNP digital transistor, connected through built-in bias resistor R1 (typ. 4.7 kΩ) to the base, with input voltage range -30 V to 10 V. |
| 2 | GND | power_in | Ground (GND(+)) terminal, connected to the emitter and to R2 in the equivalent circuit. |
| 3 | OUT | output | Output (collector) of the digital transistor, rated for output current of -100 mA and supply voltage of -50 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-723 |
| 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 | 3 | |||
| Input voltage | VIN | -30 | 10 | V | 3 | ||
| Output current | IO | -100 | mA | Tj = 25°C (note 1) | 3 | ||
| Maximum power dissipation (DTA143EM, SOT-723) | PD | 100 | mW | Tj = 25°C (note 1) | 3 | ||
| Operating junction and storage temperature range | Tj, Tstg | -55 | 150 | °C | 3 | ||
| Input voltage (off) | VI(off) | -0.5 | V | VCC = -5V, IO = -100µA | 3 | ||
| Input voltage (on) | VI(on) | -3 | V | VO = -0.3V, IO = -10mA | 3 | ||
| Output voltage (on) | VO(on) | -0.3 | V | IO/II = -10mA/-0.5mA | 3 | ||
| Input current | II | -1.8 | mA | VI = -5V | 3 | ||
| Output current (off) | IO(off) | -0.5 | µA | VCC = -50V, VI = 0V | 3 | ||
| DC current gain | GI | 30 | VO = -5V, IO = -10mA | 3 | |||
| Input resistance | R1 | 3.29 | 4.7 | 6.11 | kΩ | 3 | |
| Resistance ratio | R2/R1 | 0.8 | 1 | 1.2 | 3 | ||
| Transition frequency | fT | 250 | MHz | VO = -10V, IO = -5mA, f = 100MHz | 3 |
CAD (KiCad official)
- Symbol:
AD-DTA143EM - Footprint:
Package_TO_SOT_SMD:SOT-723 - 3D model: SOT-723, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.5 mm nominal SOT-723 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:
ad-dta143em-etched.step/ad-dta143em-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ad-dta143em.step/ad-dta143em.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (17 pp, sha256
512137fa98eb1215, retrieved 2026-10-18, 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).