component
DTA143ZKAT146
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
markdownDTA143ZKAT146
ROHM Semicon · Digital Transistors · TO-236-3(SOT-23-3)
DTA143ZKAT146 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 terminal of the PNP digital transistor; supply voltage VCC is rated -50 V. |
| 2 | IN (BASE) | input | Input (base) through built-in R1 = 4.7kΩ with R2 = 47kΩ to emitter; input voltage rated -30 to 5 V, VI(off) max -0.5 V and VI(on) min -1.3 V. |
| 3 | OUT (COLLECTOR) | output | Output (collector) terminal; output current rated -100 mA, with IO(off) max -500 nA at VCC = -50 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | TO-236-3(SOT-23-3) |
| 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) | -1.3 | V | VO = -0.3V, IO = -5mA | 2 | ||
| Output voltage | VO(on) | -100 | -300 | mV | IO = -5mA, II = -0.25mA | 2 | |
| Input current | II | -1.8 | mA | VI = -5V | 2 | ||
| Output current | IO(off) | -500 | nA | VCC = -50V, VI = 0V | 2 | ||
| DC current gain | GI | 80 | - | VO = -5V, IO = -10mA | 2 | ||
| Input resistance | R1 | 3.29 | 4.7 | 6.11 | kΩ | 2 | |
| Resistance ratio | R2/R1 | 8 | 10 | 12 | - | 2 | |
| Supply voltage | VCC | -50 | V | Ta = 25°C | 2 | ||
| Input voltage | VIN | -30 | 5 | V | Ta = 25°C | 2 | |
| Output current | IO | -100 | mA | Ta = 25°C | 2 | ||
| Collector current | IC(MAX) | -100 | mA | Ta = 25°C, note *1 (characteristics of built-in transistor) | 2 | ||
| Power dissipation (DTA143ZKA) | PD | 200 | mW | Ta = 25°C, each terminal mounted on a reference land (note *2) | 2 | ||
| Junction temperature | Tj | 150 | ℃ | 2 | |||
| Range of storage temperature | Tstg | -55 | 150 | ℃ | 2 | ||
| Transition frequency | fT | 250 | MHz | VCE = -10V, IE = 5mA, f = 100MHz (characteristics of built-in transistor) | 2 |
CAD (KiCad official)
- Symbol:
DTA143ZKAT146 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: TO-236-3(SOT-23-3) (KiCad packages3D, STEP)
- 3D model files:
dta143zkat146-etched.step/dta143zkat146-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dta143zkat146.step/dta143zkat146.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ROHM Semicon datasheet (13 pp, sha256
bc944a70b8e6fa3a, retrieved 2026-10-15, 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).