component

PJ-102A (DC barrel jack)

Public Made by Adom

by adom

CUI 2.0 mm DC barrel jack, right-angle THT. 24 Vdc, 2.5 A, switched. Datasheet-verified.

componentconnectorpower-jackbarrel-jackthrough-holecui-devices
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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs pj-102a: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers viewers: adom-lbr per-slot symbol + footprint · Ray
package.json Publish 0.1.0 · Ray
page.json pj-102a: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
pj-102a-etched.fit.json pj-102a: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
pj-102a-etched.glb pj-102a: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
pj-102a-etched.step pj-102a: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
PJ-102A.adom-lbr.json PJ-102A: validated Fusion/EAGLE library + adom-lbr hub, generated from this page's KiCad sources · Ray
pj-102a.glb real Same Sky manufacturer STEP AP214 + 3D (was generic stand-in) · Ray
pj-102a.kicad_mod Publish 0.1.0 · Ray
pj-102a.kicad_sym Publish 0.1.0 · Ray
pj-102a.lbr add validated EAGLE .lbr (Fusion library) · Ray
PJ-102A.lbr PJ-102A: validated Fusion/EAGLE library + adom-lbr hub, generated from this page's KiCad sources · Ray
pj-102a.step real Same Sky manufacturer STEP AP214 + 3D (was generic stand-in) · Ray
README.md pj-102a: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

PJ-102A

CUI Devices · DC power jack · Right-angle THT (2.0 mm pin)

DC power jack with a 2.0 mm center pin (5.5 mm outer barrel), right-angle through-hole mount, from CUI Devices. Rated 24 Vdc / 2.5 A with 30 mohm contact resistance. The switched contact (terminal 2) is normally shorted to the tip and opens when a plug is inserted, so you can detect external power or auto-disconnect a battery. The default DC input jack for boards powered from a wall adapter.

Pinout

Pin Name Type Function
1 TIP passive Center-pin contact (Ø2.0 mm tip). Connects to the center conductor of the mating DC plug; typically the positive supply node for center-positive adapters. Rated 24 Vdc / 2.5 A; copper with nickel plating.
2 SW passive Normally-closed switch contact. Mechanically shorted to terminal 3 (sleeve) when no plug is inserted, and opens when a plug is mated. Commonly used to auto-disconnect a battery when an external adapter is plugged in. Copper alloy with silver plating.
3 SLEEVE passive Outer sleeve/ring contact of the barrel jack; typically the ground/return for center-positive DC adapters. Mates with the outer body of the plug. Brass with silver plating.

Key specifications

Parameter Value
Type DC power jack (barrel), switched
Center pin 2.0 mm
Voltage rating 24 Vdc
Current rating 2.5 A
Contact resistance 30 mΩ
Switch Normally-closed (opens on insertion)
Mounting Right-angle through-hole

Ordering variants

Same part, different packaging or reel option.

  • PJ-102A (right-angle THT, bulk)

CAD (KiCad official)

  • Symbol: Connector:Barrel_Jack_Switch
  • Footprint: Connector_BarrelJack:BarrelJack_CUI_PJ-102AH_Horizontal
  • 3D model: generic barrel jack (KiCad lacks a PJ-102AH-specific model)
  • 3D model files: pj-102a-etched.step / pj-102a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pj-102a.step / pj-102a.glb are the bare package body.

Provenance

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

  • Datasheet: CUI Devices datasheet (3 pp, sha256 3d68931e9049c6bd, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude) — every pin and dimension is cited to a datasheet page; refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF