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Contents

README

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2SA1952TLQ

ROHM Semicon · Bipolar (BJT) · TO-252-2(DPAK)

2SA1952TLQ from ROHM Semicon, in a TO-252-2(DPAK). 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 Base input Base terminal of the PNP transistor; the datasheet gives no separate pin-level limit, and the device limits are VEBO −5 V and IC −5 A DC (−10 A pulse).
2 Collector passive Collector terminal; absolute maximum ratings are VCBO −100 V, VCEO −60 V, IC −5 A DC (−10 A pulse), and collector power dissipation of 1 W and 10 W (Tc=25°C).
3 Emitter passive Emitter terminal; the datasheet gives VEBO −5 V as the emitter-base breakdown limit, with junction temperature up to 150°C and storage −55 to +150°C.

Key specifications

Parameter Value
Manufacturer ROHM Semicon
Package TO-252-2(DPAK)
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 -100 V IC = −50µA 1
Collector-emitter breakdown voltage BVCEO -60 V IC = −1mA 1
Emitter-base breakdown voltage BVEBO -5 V IE = −50µA 1
Collector cutoff current ICBO -10 µA VCB = −100V 1
Emitter cutoff current IEBO -10 µA VEB = −5V 1
Collector-emitter saturation voltage VCE(sat) -0.3 V IC/IB = −3A/−0.15A 1
Collector-emitter saturation voltage VCE(sat) -0.5 V IC/IB = −4A/−0.2A 1
Base-emitter saturation voltage VBE(sat) -1.2 V IC/IB = −3A/−0.15A 1
Base-emitter saturation voltage VBE(sat) -1.5 V IC/IB = −4A/−0.2A 1
DC current transfer ratio hFE 130 270 VCE = −2V, IC = −1A 1
Turn-on time ton 0.3 µs IC = −3A, RL = 10Ω 1
Storage time tstg 1.5 µs IB1 = −IB2 = −0.15A 1
Fall time tf 0.3 µs VCC −30V 1
Collector-base voltage VCBO -100 V 1
Collector-emitter voltage VCEO -60 V 1
Emitter-base voltage VEBO -5 V 1
Collector current IC -5 A 1
Collector current (pulse) IC -10 A Pulse 1
Collector power dissipation PC 1 W 1
Collector power dissipation PC 10 W Tc = 25°C 1
Junction temperature Tj 150 °C 1
Storage temperature Tstg -55 150 °C 1
Transition frequency fT 120 MHz VCE = −10V, IE = 0.5A, f = 30MHz 1
Output capacitance Cob 80 pF VCB = −10V, IE = 0A, f = 1MHz 1

CAD (KiCad official)

  • Symbol: 2SA1952TLQ
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)
  • 3D model files: 2sa1952tlq-etched.step / 2sa1952tlq-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sa1952tlq.step / 2sa1952tlq.glb are the bare package body.

Provenance

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

  • Datasheet: ROHM Semicon datasheet (1 pp, sha256 6dae8b0581f9002b, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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