DC 12V Panel Mount Power Connector (Male & Female Pair) — 5.5mm x 2.1mm Barrel Jack/Plug Set
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R16.52
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DC 12V Panel Mount Power Connector (Male & Female Pair) — 5.5mm x 2.1mm Barrel Jack/Plug Set
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Product Details
| Spec | Value |
|---|---|
| Connector Type | DC barrel jack (female, panel-mount) + matching DC barrel plug (male) |
| Size | 5.5mm OD x 2.1mm ID (standard barrel size) |
| Polarity | Center-positive (standard, verify before use) |
| Rated Voltage | Up to 12V DC (commonly rated higher, check datasheet) |
| Rated Current | Typically up to 5A |
| Mounting | Panel/chassis mount, threaded nut for enclosure wall installation |
| Termination | Solder tabs or screw terminals (varies by model) |
| Material | Nickel-plated brass contacts, plastic/metal housing |
| Compatible With | 12V power supplies, LED strips, amplifiers, project enclosures |
| Typical Use | Routing external DC power into an enclosure without soldering directly to internal wiring |
Handy Tips
Confirm polarity before wiring — Most barrel connectors are center-positive, but not all are. Check the connector's markings or datasheet and test with a multimeter before connecting power, since wiring it backwards can damage downstream components.
Match the plug and jack sizing exactly — 5.5mm x 2.1mm is the most common size, but 5.5mm x 2.5mm variants look nearly identical and won't seat properly (or will make poor contact). Always verify both connectors are the same size before assuming compatibility.
Use the panel nut to seal against strain — The threaded panel mount isn't just cosmetic; tightening it properly secures the jack against the enclosure wall and reduces strain on the internal solder joints when the plug is inserted/removed repeatedly.
Rate for your actual current draw — The "5A" rating is generic and varies by connector quality. For higher-current applications (e.g. powering motors or bright LED strips), check the specific connector's datasheet rating rather than assuming the standard figure applies.
Strain-relieve the internal wiring — Since these connectors take the physical stress of repeated plug/unplug cycles, add a small zip-tie or hot glue strain relief on the internal wire connection to prevent the solder joint from cracking over time.
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