component

2SA1661-JSM

Public Made by Adom

by adom

JSMSEMI Bipolar (BJT), SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttransistors-thyristors2sa1661-jsmfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 6d ago
viewers 2sa1661-jsm: viewers · Ray 6d ago
2sa1661-jsm-etched.glb Publish 0.1.0 · Ray 6d ago
2sa1661-jsm-etched.step 2sa1661-jsm: factory component page (tier=lcsc) · Ray 6d ago
2sa1661-jsm-hero.glb 2sa1661-jsm: hero GLB from the etched model (keeps the MPN mark) · Ray 6d ago
2sa1661-jsm-hero.overlay.json Publish 0.1.0 · Ray 6d ago
2sa1661-jsm.glb Publish 0.1.0 · Ray 6d ago
2sa1661-jsm.kicad_mod Publish 0.1.0 · Ray 6d ago
2sa1661-jsm.kicad_sym Publish 0.1.0 · Ray 6d ago
2sa1661-jsm.lbr Publish 0.1.0 · Ray 6d ago
2sa1661-jsm.step Publish 0.1.0 · Ray 6d ago
package.json Publish 0.1.0 · Ray 6d ago
page.json Set visibility: public · Ray 6d ago
README.md Publish 0.1.0 · Ray 6d ago

2SA1661-JSM

JSMSEMI · Bipolar (BJT) · SOT-89

2SA1661-JSM from JSMSEMI, in a SOT-89. 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 of the PNP transistor; emitter-base voltage limited to -5 V (VEBO) and breakdown V(BR)EBO min -5 V at IE=-1 mA.
2 COLLECTOR passive Collector of the PNP transistor; VCBO and VCEO are -120 V and continuous collector current is -0.8 A.
3 EMITTER passive Emitter of the PNP transistor; the device dissipates 500 mW (PC) with a junction-to-ambient thermal resistance of 250 °C/W.

Key specifications

Parameter Value
Manufacturer JSMSEMI
Package SOT-89
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: 2SA1661-JSM
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: 2sa1661-jsm-etched.step / 2sa1661-jsm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sa1661-jsm.step / 2sa1661-jsm.glb are the bare package body.

Provenance

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

  • Datasheet: JSMSEMI datasheet (2 pp, sha256 4ba3556a7eca4b92, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (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