component

MJD122D

Public Made by Adom

by adom

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

componenttransistors-thyristorsmjd122dfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Datasheet

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

MJD122D

Slkor SLKORMICRO Elec · Bipolar (BJT) · TO-252

MJD122D from Slkor SLKORMICRO Elec, in a TO-252. 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 NPN Darlington transistor; Emitter-Base voltage is limited to 5 V maximum (VEBO).
2 Collector passive Collector of the Darlington transistor (also the tab); VCBO and VCEO are 100 V maximum and continuous collector current is 8 A maximum.
3 Emitter passive Emitter of the Darlington transistor, connected to the internal 0.12 kΩ resistor and the integrated diode as shown in the schematic.

Key specifications

Parameter Value
Manufacturer Slkor SLKORMICRO Elec
Package TO-252
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 Voltage VCBO 100 V 1
Collector-Emitter Voltage VCEO 100 V 1
Emitter-Base Voltage VEBO 5 V 1
Collector Current-Continuous IC 8 A 1
Total Power Dissipation PC 1.75 W @ Ta=25℃ 1
Collector Power Dissipation PC 20 W TC=25℃ 1
Junction Temperature TJ 150 ℃ 1
Storage Temperature Range Tstg -55 150 ℃ 1
Collector-Emitter Breakdown Voltage V(BR)CEO 100 V IC= 30mA; IB= 0 2
Collector-Emitter Saturation Voltage VCE(sat)-1 2 V IC=4A; IB= 16mA 2
Collector-Emitter Saturation Voltage VCE(sat)-2 4 V IC=8A; IB= 80mA 2
Base-Emitter Saturation Voltage VBE(sat) 4.5 V IC=8A; IB= 80mA 2
Base-Emitter voltage VBE(ON) 2.8 V IC= 4A; VCE= 4V 2
Collector Cutoff Current ICEO 10 uA VCE=50V; IE= 0 2
Emitter Cutoff Current IEBO 2 mA VEB=5V; IC= 0 2
DC Current Gain hFE1 1000 12000 IC= 4A; VCE= 4V 2
DC Current Gain hFE2 100 IC=8A; VCE= 4V 2
Current-Gain, Bandwidth Product fT 4 MHz IC=3A; VCE= 4V 2
Output Capacitance COB 200 pF IE=0; VCB= 10V; f= 1.0MHz 2

CAD (KiCad official)

  • Symbol: MJD122D
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: mjd122d-etched.step / mjd122d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mjd122d.step / mjd122d.glb are the bare package body.

Provenance

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

  • Datasheet: Slkor SLKORMICRO Elec datasheet (3 pp, sha256 8537200112a4b643, 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