Description
2.1mm x 5.5mm Male DC Power Plug to 2-Pin Screw-Terminal Block Adapter
Product Overview
The Male DC Power Plug to 2-Pin Screw-Terminal Adapter is a heavy-duty, high-reliability 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 heavy-duty 2-pin screw-down terminal block on the other, this adapter completely eliminates the need for manual wire splicing, electrical taping, or soldering iron setups.
Designed for robust field wiring, permanent commercial installations, and rapid laboratory prototyping, the terminal block features integrated internal clamping plates adjusted via top-facing steel screws. This mechanical clamping system ensures an incredibly high-tensile, vibration-proof wire bond that will not slip out over time. 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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Heavy-Duty Screw Clamp Architecture: Outfitted with robust top-facing steel screws and internal compression plates that lock stranded or solid bare wires into a tight, high-tensile mechanical bond.
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Universal 2.1mm x 5.5mm Footprint: Precision-machined to form a tight, snap-fit physical 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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Highly Reusable & Durable Construction: Built to withstand repeated wire adjustments without degradation; eliminates stripped threads or fractured internal contacts under standard torque.
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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 Screw-Terminal Block Adapter |
| Barrel Plug Size | 2.1mm Inside Diameter (ID) x 5.5mm Outside Diameter (OD) |
| Terminal Connection Type | 2-Pin Screw-Down M3 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/Silver-Plated |
| Rated Operating Voltage | 12V to 36V DC Max |
| Rated Current Load | 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 26 AWG solid or stranded bare wires |
Applications
The go-to high-tensile termination interface for reliable field wiring, prototyping labs, and industrial distribution layouts:
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CCTV Surveillance System Field Wiring: Securely 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, heavy-duty 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 permanent external power connection interface on hardware test jigs, validation panels, and custom educational electronics trainer boards.
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