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2SA1037AKT146S

Public Made by Adom

by 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.

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2SA1037AKT146S

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

2SA1037AKT146S 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 Emitter passive Emitter terminal of the PNP transistor; VEBO is rated at -6 V and emitter-base breakdown BVEBO is -6 V min at IE = -50 µA.
2 Base passive Base terminal of the PNP transistor; hFE is 120 to 390 at VCE = -6 V, IC = -1 mA.
3 Collector passive Collector terminal of the PNP transistor; VCEO is -50 V, VCBO is -60 V and IC is -150 mA (ICP -200 mA).

Key specifications

Parameter Value
Manufacturer ROHM Semicon
Package TO-236-3(SOT-23-3)
Category Triode/MOS Tube/Transistor
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
Collector-base breakdown voltage BVCBO -60 V IC = -50μA 2
Collector-emitter breakdown voltage BVCEO -50 V IC = -1mA 2
Emitter-base breakdown voltage BVEBO -6 V IE = -50μA 2
Collector cut-off current ICBO -100 nA VCB = -60V 2
Emitter cut-off current IEBO -100 nA VEB = -6V 2
Collector-emitter saturation voltage VCE(sat) -500 mV IC = -50mA, IB = -5mA 2
DC current gain hFE 120 390 VCE = -6V, IC = -1mA 2
Output capacitance Cob 4 5 pF VCB = -12V, IE = 0A, f = 1MHz 2
Transition frequency fT 140 MHz VCE = -12V, IE = 2mA, f = 100MHz 2
Collector-base voltage VCBO -60 V Ta = 25°C 2
Collector-emitter voltage VCEO -50 V Ta = 25°C 2
Emitter-base voltage VEBO -6 V Ta = 25°C 2
Collector current IC -150 mA Ta = 25°C 2
Collector current (pulse) ICP -200 mA Pw=1ms, Single Pulse 2
Power dissipation 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: 2SA1037AKT146S
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: TO-236-3(SOT-23-3) (KiCad packages3D, STEP)
  • 3D model files: 2sa1037akt146s-etched.step / 2sa1037akt146s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sa1037akt146s.step / 2sa1037akt146s.glb are the bare package body.

Provenance

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

  • Datasheet: ROHM Semicon datasheet (15 pp, sha256 34203ed274faca4a, retrieved 2026-10-22, tier: manufacturer)
  • 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