Vertical DIP DC Jack for PCB Power Applications – Reliable Female DC Power Socket

The DC-068 is a vertical DIP DC jack designed as a robust female DC power socket for through‑hole PCB mounting. Accepting standard 2.1mm DC barrel plugs, it provides a secure PCB mount DC power connector with built‑in insertion switch. Rated 2A, 5,000 mating cycles. RoHS & REACH compliant. MOQ 1,000 pcs. Free sample for qualified projects.

Part NumberDC-068

Connector TypeVertical DIP DC Jack (Female)

Pin Count3 Pins (Through-Hole)

Switch FunctionNormally closed, opens on plug insertion

Mounting StyleThrough-Hole DIP (Vertical)

Overview

Vertical DIP DC Jack — Product Overview

The DC-068 is a vertical DIP DC jack designed for PCB power-input applications where the barrel entrance points perpendicular to the board surface. This orientation suits rear-panel cutouts on instrument cases, set-top boxes, IoT gateways, and audio equipment, keeping the connector body within the PCB outline rather than extending past the board edge.

The gold-plated phosphor bronze contacts maintain a contact resistance below 30 mΩ across the 5,000-cycle mating life, which keeps voltage drop low when powering sensitive analog or digital circuits. The three-pin through-hole footprint uses two outer pins to anchor the shell to the ground plane and a center pin for positive voltage. The third pin is a normally-closed switch that opens when a plug is inserted, enabling automatic battery disconnect or external power detection without an external MOSFET or comparator.

Technical Specifications

PCB Mount DC Power Connector — Full Technical Specifications

Parameter	Value	Notes
Part Number	DC-068	Standard catalog item
Connector Type	Vertical DIP DC Jack (Female)	Accepts 5.5×2.1mm plug
Pin Count	3 Pins (Through-Hole)	Center positive, outer shell, NC switch
Switch Function	Normally closed, opens on plug insertion	Battery disconnect / plug detection
Mounting Style	Through-Hole DIP (Vertical)	Wave or hand soldering
Current Rating	2A	12V DC resistive load
Voltage Rating	24V DC maximum	Insulation withstand 500V AC
Mating Cycles	5,000 cycles	Mechanical life
Contact Resistance	≤30 mΩ initial	Gold over nickel
Insulation Resistance	≥100 MΩ @ 500V DC	Between non-connected terminals
Dielectric Strength	500V AC (1 minute)	Between contacts and body
Contact Material	Phosphor Bronze, Gold over Nickel	Stable low resistance
Housing Material	PBT (UL94 V-0), High-Temp	Wave-solder compatible
Operating Temperature	−25°C to +85°C	Commercial & light-industrial
Soldering Temperature	260°C, 5s max (wave)	Per IEC 60068-2-20
Packaging	Tube (100 pcs/tube)	Antistatic PVC tube

Why Engineers Choose the Female DC Power Socket with Through-Hole DIP for Stable Rear-Panel Input

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5.5×2.1mm Standard Barrel Interface — Wide Adapter Compatibility

The jack accepts the most widely used DC adapter size (5.5mm outer / 2.1mm inner), so users can replace or upgrade power supplies without proprietary charger lock-in. The barrel entrance is vertical, matching rear-panel cutouts on instrument cases, set-top boxes, and IoT gateways.

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3-Pin Through-Hole DIP — Dual-Anchored Solder Joints

Each terminal pin passes through a plated hole and is soldered on both sides of the board, creating a dual-anchored joint that distributes mechanical stress across the full board thickness. The three-pin triangular footprint also provides inherent polarity keying during assembly.

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Built-In Normally-Closed Switch — Battery Disconnect Without Extra Circuitry

The third pin is a normally-closed switch connected to ground when no plug is inserted. When a plug enters the jack, the switch opens — enabling automatic battery disconnect or external power detection without an external FET or comparator circuit.

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Gold-Plated Contacts — Stable Low Contact Resistance

Gold-over-nickel plating on phosphor bronze contacts keeps contact resistance ≤30 mΩ, resisting oxidation and corrosion that would otherwise increase resistance over time. This keeps voltage drop low across the 5,000-cycle mating life.

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PBT Housing & 260°C Wave-Solder Compatibility

The UL94 V-0 PBT housing withstands wave-solder temperatures up to 260°C for 5 seconds per IEC 60068-2-20. The nickel-plated brass body resists corrosion in unconditioned factory environments, supporting reliable operation from −25°C to +85°C.

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RoHS 3 & REACH Compliant — Globally Export Ready

Lead-free construction meets RoHS 3 (EU Directive 2015/863) and REACH SVHC substance regulations, ensuring unrestricted export to regulated markets.

Applications

Where to Use the 2.1mm DC Barrel Jack — Applications for Consumer, Industrial & Battery-Backed Equipment

🎵 Audio & Effects Pedals Rear-panel DC input on guitar pedals and audio processors where the power jack is plugged and unplugged frequently

🏠 Smart Home & IoT Hubs Low-profile power entry on mesh routers, sensor gateways, and home automation controllers

🏭 Industrial Control Modules PLC modules, sensor interfaces, and machine vision cameras in unconditioned factory environments

📊 Test & Measurement Instruments Bench instruments where the built-in switch terminal enables floating measurements and battery backup

🔋 Battery-Backed Systems Products with internal battery backup where the NC switch provides automatic power-path selection between battery and adapter

📡 Communication Equipment Routers, modems, and communication devices requiring a stable, low-resistance DC power interface

Vertical DIP DC Jack DC-068 — Frequently Asked Questions

What plug sizes are compatible with this vertical DIP DC jack?

It is designed for 5.5mm outer / 2.1mm inner barrel plugs. It will mechanically accept 5.5×2.5mm plugs, but the center contact may be intermittent. For 2.5mm center pin applications, please contact us for the appropriate variant.

How do I wire the three pins of the DC-068?

Pin 1 (center, longer) is positive. Pin 2 (outer shell) is ground. Pin 3 is a normally-closed switch connected to Pin 2 when no plug is inserted. Once a plug is inserted, the switch opens — perfect for battery disconnect or external power detection.

What is the difference between this vertical DIP DC jack and an SMT DC jack?

The DC-068 DIP through-hole connector drives its pins through drilled holes in the PCB and solders from the back side, creating a mechanically robust dual-anchored joint with high pull-out and side-load resistance. An SMT DC jack (such as the DC-031A 4-pin SMT DC jack) solders only to pads on the PCB surface, offering lower PCB area requirements and SMT reflow compatibility — but with reduced mechanical pull-out strength compared to DIP mounting.

What is the MOQ and can I get a free sample?

Standard MOQ is 1,000 pieces with a 2–4 week production lead time. Free samples are available for qualified engineering and product development projects. Contact sales@vistarelectronics.com with your company details, project application, and part number (DC-068).