Description
2.1mm x 5.5mm Male DC Power Plug to 2-Pin Press-Terminal Block Adapter
Product Overview
The Male DC Power Plug to 2-Pin Press-Terminal Adapter is an indispensable quick-connect interface component engineered to bridge raw, stripped wire conductors directly into standard low-voltage DC sockets. Outfitted with an industry-standard 2.1mm x 5.5mm male barrel plug on one end and a toolless 2-pin spring-actuated press terminal on the other, this adapter completely eliminates the need for manual wire splicing, electrical taping, or soldering iron setups.
Designed for rapid prototyping and field wiring installations, the press terminal block features integrated high-elasticity spring clamps that grip bare wires firmly with a single push. Constructed with a high-impact, flame-retardant outer polymer shell and high-conductivity internal contacts, it ensures an ultra-low resistance connection capable of delivering stable DC power to security hardware, development boards, and custom circuit modules.
Key Features
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Toolless Press-Terminal Architecture: Features dual spring-actuated levers that open easily when pressed and clamp down forcefully upon release, establishing a vibration-proof wire bond in seconds.
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Universal 2.1mm x 5.5mm Footprint: Precision-machined to form a tight, snap-fit mechanical connection with matching standard 2.1mm female jacks, entirely preventing intermittent power dropouts or physical wobbles.
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High-Contrast Polarity Markings: Molded with large, explicit positive ($+$) and negative ($-$) symbols directly onto the polymer shell, ensuring safe visual routing and preventing reverse-polarity circuit damage.
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Screw-Free Reusable Design: Eliminates stripped screw heads and loose connections; the internal constant-tension spring clamps automatically adjust to the wire gauge for a permanent, reliable grip.
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Flame-Retardant Engineered Housing: Encased in a heavy-duty, impact-resistant insulation jacket that isolates electrical current safely and resists localized thermal buildup under load.
Technical Specifications
| Parameter | Specification |
| Component Type | Male DC Barrel Plug to Solderless Press-Terminal Block Adapter |
| Barrel Plug Size | 2.1mm Inside Diameter (ID) x 5.5mm Outside Diameter (OD) |
| Terminal Connection Type | 2-Pin Spring-Loaded Press Clamp Terminals |
| Polarity Layout | Standard Center Positive configuration ($+$ Pin maps to Inner Sleeve) |
| Housing Material | High-Impact, Flame-Retardant ABS / PVC Engineering Plastic |
| Internal Contacts | High-Conductivity Copper Alloy, Nickel-Plated |
| Rated Operating Voltage | 12V to 36V DC Max |
| Rated Current Load | 3A to 5A Continuous Max (Depending on wire gauge utilized) |
| Contact Resistance | $\le 0.02\,\Omega$ ($20\,\text{m}\Omega$) |
| Insulation Resistance | $\ge 100\,\text{M}\Omega$ at 500V DC |
| Compatible Wire Gauge | Accommodates 16 AWG to 24 AWG solid or stranded bare wires |
Applications
The go-to solderless termination interface for fast field wiring, prototyping labs, and quick-disconnect layouts:
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CCTV Surveillance System Field Wiring: Rapidly connecting raw twin-lead power trunks extending from central distribution boxes directly into standard 12V female DC sockets on cameras or DVR hardware units.
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Solderless Breadboard & Prototyping Links: Delivering direct DC voltage from raw hookup wires feeding out of breadboard power rails, battery packs, or custom relays into a clean male barrel layout.
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LED Strip Light Power Interfacing: Providing a reliable, easily disconnectable power link to attach raw wire tails from LED controller modules directly into standard female DC line jacks.
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Custom Enclosure Power Testing: Serving as a temporary or permanent external power connection interface on hardware test jigs, validation panels, and custom educational electronics trainer boards.
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