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DTA124EKAT146

Public Made by Adom

by adom

ROHM Semicon Digital Transistors, TO-236-3(SOT-23-3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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DTA124EKAT146

ROHM Semicon · Digital Transistors · TO-236-3(SOT-23-3)

DTA124EKAT146 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, connected to R2 and the emitter; supply VCC is rated -50V.
2 IN (BASE) input Input (base) terminal through built-in R1 = 22kΩ, with R2 = 22kΩ to emitter; VIN rated -40 to 10 V, VI(off) max -0.5V and VI(on) min -3.0V.
3 OUT (COLLECTOR) output Output (collector) terminal, rated output current IO -30 mA and collector current IC(MAX) -100 mA.

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
Supply voltage VCC -50 V 2
Input voltage VIN -40 10 V 2
Output current IO -30 mA 2
Collector current IC(MAX) -100 mA 2
Power dissipation (DTA124EKA) PD 200 mW Each terminal mounted on a reference land 2
Junction temperature Tj 150 ℃ 2
Range of storage temperature Tstg -55 150 ℃ 2
Input voltage (off) VI(off) -0.5 V VCC = -5V, IO = -100μA 2
Input voltage (on) VI(on) -3 V VO = -0.2V, IO = -5mA 2
Output voltage (on) VO(on) -100 -300 mV IO = -10mA, II = -0.5mA 2
Input current II -360 μA VI = -5V 2
Output current (off) IO(off) -500 nA VCC = -50V, VI = 0V 2
DC current gain GI 56 - VO = -5V, IO = -5mA 2
Input resistance R1 15.4 22 28.6 kΩ 2
Resistance ratio R2/R1 0.8 1 1.2 - 2

CAD (KiCad official)

  • Symbol: DTA124EKAT146
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: TO-236-3(SOT-23-3) (KiCad packages3D, STEP)
  • 3D model files: dta124ekat146-etched.step / dta124ekat146-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dta124ekat146.step / dta124ekat146.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: ROHM Semicon datasheet (14 pp, sha256 9f0c9ca1fe2eac31, retrieved 2026-10-15, 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