component

2SA1774TLQ

Public Made by Adom

by adom

ROHM Semicon Bipolar (BJT), SOT-416. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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2SA1774TLQ

ROHM Semicon · Bipolar (BJT) · SOT-416

2SA1774TLQ from ROHM Semicon, in a SOT-416. 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 E passive Emitter of the PNP transistor (2SA1774, SOT-416/EMT3); emitter-base breakdown BVEBO is -6V min and VEBO max is -6V.
2 B passive Base of the PNP transistor (2SA1774, SOT-416/EMT3); base drive IB = -5mA is used for the VCE(sat) test at IC = -50mA.
3 C passive Collector of the PNP transistor (2SA1774, SOT-416/EMT3); VCEO is -50V, VCBO is -60V, IC is -150mA continuous and ICP is -200mA pulsed.

Key specifications

Parameter Value
Manufacturer ROHM Semicon
Package SOT-416
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
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
Collector-base voltage VCBO -60 V 2
Collector-emitter voltage VCEO -50 V 2
Emitter-base voltage VEBO -6 V 2
Collector current IC -150 mA 2
Collector current (pulse) ICP -200 mA Pw=1ms, Single Pulse 2
Power dissipation (2SA1774, SOT-416) PD 150 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: 2SA1774TLQ
  • Footprint: Package_TO_SOT_SMD:SOT-416
  • 3D model: SOT-416, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
  • 3D model files: 2sa1774tlq-etched.step / 2sa1774tlq-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sa1774tlq.step / 2sa1774tlq.glb are the bare package body.

Provenance

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

  • Datasheet: ROHM Semicon datasheet (15 pp, sha256 ab1344a75ab1ce3f, retrieved 2026-10-17, 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