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AD-DTC114EM
Public Made by Adomby adom
Changjing Digital Transistors, SOT-723. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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AD-DTC114EM
Changjing · Digital Transistors · SOT-723
AD-DTC114EM 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 via built-in R1 (7-13 kΩ) to the transistor base; VI(off) min 0.5 V, VI(on) max 3 V, input voltage rating -10 to 40 V. |
| 2 | GND | power_in | Ground, connected to the emitter and the R2 base resistor of the NPN digital transistor. |
| 3 | OUT | output | Open-collector output of the NPN transistor, rated for 50 mA output current (100 mA peak) and 50 V supply. |
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 |
|---|---|---|---|---|---|---|---|
| Input voltage (off) | VI(off) | 0.5 | V | VCC = 5V, IO = 100µA | 3 | ||
| Input voltage (on) | VI(on) | 3 | V | VO = 0.3V, IO = 1mA | 3 | ||
| Output voltage (on) | VO(on) | 0.3 | V | IO/II = 10mA/0.5mA | 3 | ||
| Input current | II | 0.88 | 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 = 5mA | 3 | |||
| Input resistance | R1 | 7 | 10 | 13 | kΩ | 3 | |
| Resistance ratio | R2/R1 | 0.8 | 1 | 1.2 | 3 | ||
| Supply voltage | VCC | 50 | V | 3 | |||
| Input voltage | VIN | -10 | 40 | V | 3 | ||
| Output current | IO | 50 | mA | 3 | |||
| Peak collector current | ICM | 100 | mA | 3 | |||
| Maximum power dissipation (AD-DTC114EM, SOT-723 column) | PD | 100 | mW | Maximum allowed temperature Tj = 25°C | 3 | ||
| Operating junction and storage temperature range | Tj, Tstg | -55 | 150 | °C | 3 |
CAD (KiCad official)
- Symbol:
AD-DTC114EM - 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-dtc114em-etched.step/ad-dtc114em-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ad-dtc114em.step/ad-dtc114em.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (17 pp, sha256
3a3d07d34f595496, retrieved 2026-10-16, 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).
# AD-DTC114EM
**Changjing** · Digital Transistors · SOT-723
AD-DTC114EM 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 via built-in R1 (7-13 kΩ) to the transistor base; VI(off) min 0.5 V, VI(on) max 3 V, input voltage rating -10 to 40 V. |
| 2 | GND | power_in | Ground, connected to the emitter and the R2 base resistor of the NPN digital transistor. |
| 3 | OUT | output | Open-collector output of the NPN transistor, rated for 50 mA output current (100 mA peak) and 50 V supply. |
## 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 |
|---|---|---|---|---|---|---|---|
| Input voltage (off) | VI(off) | 0.5 | | | V | VCC = 5V, IO = 100µA | 3 |
| Input voltage (on) | VI(on) | | | 3 | V | VO = 0.3V, IO = 1mA | 3 |
| Output voltage (on) | VO(on) | | | 0.3 | V | IO/II = 10mA/0.5mA | 3 |
| Input current | II | | | 0.88 | 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 = 5mA | 3 |
| Input resistance | R1 | 7 | 10 | 13 | kΩ | | 3 |
| Resistance ratio | R2/R1 | 0.8 | 1 | 1.2 | | | 3 |
| Supply voltage | VCC | | | 50 | V | | 3 |
| Input voltage | VIN | -10 | | 40 | V | | 3 |
| Output current | IO | | | 50 | mA | | 3 |
| Peak collector current | ICM | | | 100 | mA | | 3 |
| Maximum power dissipation (AD-DTC114EM, SOT-723 column) | PD | | | 100 | mW | Maximum allowed temperature Tj = 25°C | 3 |
| Operating junction and storage temperature range | Tj, Tstg | -55 | | 150 | °C | | 3 |
## CAD (KiCad official)
- Symbol: `AD-DTC114EM`
- 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-dtc114em-etched.step` / `ad-dtc114em-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ad-dtc114em.step` / `ad-dtc114em.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Changjing datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590280781035053056) (17 pp, sha256 `3a3d07d34f595496`, retrieved 2026-10-16, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-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).
[Datasheet PDF](docs/ad-dtc114em-datasheet.pdf)