component
DTC143EKAT146
Public Made by Adomby adom
ROHM Semicon Digital Transistors, TO-236-3(SOT-23-3). 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
markdownDTC143EKAT146
ROHM Semicon · Digital Transistors · TO-236-3(SOT-23-3)
DTC143EKAT146 from ROHM Semicon, in a TO-236-3(SOT-23-3). 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 | GND (EMITTER) | power_in | Ground/emitter of the built-in NPN transistor, connected to the R2 bias resistor. |
| 2 | IN (BASE) | input | Input/base through built-in R1 = 4.7kΩ, with input voltage range -10 to 30 V, VI(off) max 0.5 V and VI(on) min 3.0 V. |
| 3 | OUT (COLLECTOR) | output | Output/collector of the built-in NPN transistor, rated 50 V supply (VCC) and 100 mA output current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | TO-236-3(SOT-23-3) |
| 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 |
|---|---|---|---|---|---|---|---|
| Input voltage (off) | VI(off) | 0.5 | V | VCC = 5V, IO = 100μA | 2 | ||
| Input voltage (on) | VI(on) | 3 | V | VO = 0.3V, IO = 20mA | 2 | ||
| Output voltage (on) | VO(on) | 100 | 300 | mV | IO / II = 10mA / 0.5mA | 2 | |
| Input current | II | 1.8 | mA | VI = 5V | 2 | ||
| Output current (off) | IO(off) | 500 | nA | VCC = 50V, VI = 0V | 2 | ||
| DC current gain | GI | 30 | - | VO = 5V, IO = 10mA | 2 | ||
| Input resistance (built-in R1) | R1 | 3.29 | 4.7 | 6.11 | kΩ | 2 | |
| Resistance ratio (R2/R1) | R2/R1 | 0.8 | 1 | 1.2 | - | 2 | |
| Supply voltage | VCC | 50 | V | 2 | |||
| Input voltage | VIN | -10 | 30 | V | 2 | ||
| Output current | IO | 100 | mA | 2 | |||
| Collector current | IC(MAX) | 100 | mA | 2 | |||
| Power dissipation | PD | 200 | mW | DTC143EKA (SMT3) row; each terminal mounted on a reference land | 2 | ||
| Junction temperature | Tj | 150 | ℃ | 2 | |||
| Range of storage temperature | Tstg | -55 | 150 | ℃ | 2 |
CAD (KiCad official)
- Symbol:
DTC143EKAT146 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: TO-236-3(SOT-23-3) (KiCad packages3D, STEP)
- 3D model files:
dtc143ekat146-etched.step/dtc143ekat146-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dtc143ekat146.step/dtc143ekat146.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ROHM Semicon datasheet (12 pp, sha256
1888535a91ad90c6, retrieved 2026-10-21, tier: manufacturer) - 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).