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MJD3055

Public Made by Adom

by adom

Changjing Bipolar (BJT), TO-252-2L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MJD3055

Changjing · Bipolar (BJT) · TO-252-2L

MJD3055 from Changjing, in a TO-252-2L. 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 NPN transistor base terminal; the datasheet gives no separate base-current rating, and the emitter-base voltage limit VEBO is 5 V.
2 COLLECTOR passive NPN transistor collector terminal; maximum ratings are VCBO 70 V, VCEO 60 V, continuous IC 10 A, and PC 1.25 W at Ta=25℃.
3 EMITTER passive NPN transistor emitter terminal; the datasheet lists the emitter-base voltage rating VEBO as 5 V.

Key specifications

Parameter Value
Manufacturer Changjing
Package TO-252-2L
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 V(BR)CBO 70 V Ic=1mA,IE=0 2
Collector-emitter breakdown voltage V(BR)CEO 60 V Ic=200 mA,IB=0 2
Emitter-base breakdown voltage V(BR)EBO 5 V IE=1mA,IC=0 2
Collector cut-off current ICBO 0.02 mA VCB=70V,IE=0 2
Collector cut-off current ICEO 50 µA VCB=30V,IB=0 2
Emitter cut-off current IEBO 0.5 mA VEB=5V,IC=0 2
DC current gain hFE(1) 20 100 VCE=4V,IC=4A 2
DC current gain hFE(2) 5 VCE=4V,IC=10A 2
Collector-emitter saturation voltage VCE(sat)(1) 1.1 V IC=4A, IB=0.4A 2
Collector-emitter saturation voltage VCE(sat)(2) 8 V IC=10A, IB=3.3A 2
Base-emitter voltage VBE 1.8 V VCE=4V, IC=4A 2
Transition frequency fT 2 MHz VCE=10V,IC=0.5A,f=500KHZ 2
Collector-Base Voltage VCBO 70 V Ta=25℃ 1
Collector-Emitter Voltage VCEO 60 V Ta=25℃ 1
Emitter-Base Voltage VEBO 5 V Ta=25℃ 1
Collector Current - Continuous IC 10 A Ta=25℃ 1
Collector Power Dissipation PC 1.25 W Ta=25℃ 1
Operating Junction and Storage Temperature Range TJ,Tstg -55 150 ℃ Ta=25℃ 1

CAD (KiCad official)

  • Symbol: MJD3055
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2L (KiCad packages3D, STEP)
  • 3D model files: mjd3055-etched.step / mjd3055-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mjd3055.step / mjd3055.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (5 pp, sha256 f370998934b8645c, retrieved 2026-10-18, 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