component
DTC144EUA
Public Made by Adomby adom
CBI Digital Transistors, SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+62@@ -0,0 +1,62 @@+# DTC144EUA++**CBI** · Digital Transistors · SOT-323++DTC144EUA from CBI, in a SOT-323. 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 | Base input of the built-in bias-resistor digital transistor; input voltage is rated from -10 V to +40 V per the maximum ratings. |+| 2 | GND | power_in | Ground reference pin for the device; the datasheet gives no separate numeric limit for this pin. |+| 3 | OUT | output | Collector output of the NPN digital transistor; output current is rated at 30 mA (peak collector current 100 mA) with supply voltage up to 50 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | CBI |+| Package | SOT-323 |+| 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 | 2 |+| Input voltage (on) | VI(on) | 3 | | | V | VO=0.3V,IO=2mA | 2 |+| Output voltage | VO(on) | | | 0.3 | V | IO/II=10mA/0.5mA | 2 |+| Input current | II | | | 0.18 | mA | VI=5V | 2 |+| Output current | IO(off) | | | 0.5 | µA | VCC=50V,VI=0 | 2 |+| DC current gain | GI | 68 | | | | VO=5V,IO=5mA | 2 |+| Input resistance (built-in R1, nominal 47 kΩ as printed) | R1 | 32.9 | 47 | 61.1 | kΩ | | 2 |+| Resistance ratio | R2/R1 | 0.8 | 1 | 1.2 | | | 2 |+| Supply Voltage | VCC | | | 50 | V | | 2 |+| Input Voltage | VIN | -10 | | 40 | V | | 2 |+| Output Current | IO | | | 30 | mA | | 2 |+| Peak Collector Current | ICM | | | 100 | mA | | 2 |+| Power Dissipation (UA variant) | PD | | | 200 | mW | | 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: `DTC144EUA`+- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`+- 3D model: SOT-323 (KiCad packages3D, STEP)+- 3D model files: `dtc144eua-etched.step` / `dtc144eua-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dtc144eua.step` / `dtc144eua.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [CBI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590920797261819904) (7 pp, sha256 `61f5dddc973b44c9`, retrieved 2026-10-18, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/dtc144eua-datasheet.pdf)
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