component

PJ-102AH DC Barrel Jack

Public Unreviewed

by Ray

2.0 mm center-pin DC power barrel jack with a switched terminal, horizontal PCB mount.

connectorbarrel-jackdc-power2.0mmswitchedsame-sky
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3D Model

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Symbol & Footprint

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PCB Footprint

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Contents

README

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PJ-102AH

Same Sky · DC Power Jack · Barrel Jack (2.0 mm, horizontal)

The PJ-102AH is a horizontal PCB-mount DC power barrel jack that accepts a 2.0 mm center-pin plug. It includes a normally-closed switch terminal that opens when a plug is inserted, so a design can cut over from an internal supply to external DC automatically. It is a common DC input connector for adapters and wall supplies.

Pinout

Pin Name Type Function
1 TIP passive Center pin contact (2.0 mm tip). Connects to the plug's center conductor, typically the positive supply rail. Rated 24 Vdc / 5.0 A; contact resistance 30 mΩ max.
2 SLEEVE passive Outer sleeve/barrel contact, typically the return (ground) path. Also serves as the common of the internal switch: when a plug is inserted, terminal 3 disconnects from this terminal 2.
3 SW passive Normally-closed switch contact. Shorted to terminal 2 (sleeve) when no plug is mated, and opens when a plug is inserted. Commonly used to auto-disconnect an internal battery when the DC jack is powered.

Key specifications

Parameter Value
Type DC power jack (barrel connector)
Center pin 2.0 mm
Mounting Horizontal, through-hole PCB
Switch Normally-closed (opens on plug insertion)
Operating temperature -25 C to 85 C

Ordering variants

Same part, different packaging or reel option.

  • PJ-102AH

CAD (KiCad official)

  • Symbol: pj-102ah.kicad_sym
  • Footprint: pj-102ah.kicad_mod
  • 3D model: Authentic Same Sky manufacturer STEP AP214 model. Footprint + symbol from KiCad official (Connector_BarrelJack:BarrelJack_CUI_PJ-102AH_Horizontal, Connector:Barrel_Jack_Switch).

Provenance

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

  • Datasheet: Same Sky datasheet (3 pp, sha256 8fa5c910e4c9acf9, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF