component
DTA143EKAT146
Public Made by Adomby adom
ROHM Semicon Bipolar Transistors - BJT, 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
markdownDTA143EKAT146
ROHM Semicon · Bipolar Transistors - BJT · TO-236-3(SOT-23-3)
DTA143EKAT146 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 | power_in | GND (+) (EMITTER) of the built-in PNP transistor; the R2 bias resistor (4.7kΩ) is connected between base and this pin. |
| 2 | IN | input | IN (BASE) input through built-in R1 = 4.7kΩ; input voltage range is -30 to 10 V, with VI(off) max -0.5 V and VI(on) min -3.0 V. |
| 3 | OUT | output | OUT (COLLECTOR) output; output current up to -100 mA and supply voltage VCC of -50 V. |
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 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 (on) | VI(on) | -3 | V | VO = -0.3V, IO = -20mA | 2 | ||
| Input voltage (off) | VI(off) | -0.5 | V | VCC = -5V, IO = -100μA | 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 | ||
| Supply voltage | VCC | -50 | V | 2 | |||
| Input voltage | VIN | -30 | 10 | V | 2 | ||
| Output current | IO | -100 | mA | 2 | |||
| Collector current | IC(MAX) | -100 | mA | 2 | |||
| Power dissipation (DTA143EKA) | PD | 200 | mW | 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:
DTA143EKAT146 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: TO-236-3(SOT-23-3) (KiCad packages3D, STEP)
- 3D model files:
dta143ekat146-etched.step/dta143ekat146-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dta143ekat146.step/dta143ekat146.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ROHM Semicon datasheet (12 pp, sha256
cfea34567024e426, 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).