Description
3.5mm Male Stereo Audio Plug Connector (Solder Type)
Product Overview
The 3.5mm Male Stereo Audio Plug Connector (commonly known as a mini-jack or TRS plug) is the universal standard for routing dual-channel analog audio signals alongside a dedicated ground shield. Featuring a precision-machined 3.5mm ($1/8\text{ inch}$) outer diameter shaft, this connector ensures an exact, snap-fit insertion into all standard auxiliary and headphone ports, completely eliminating static pops, signal dropouts, or loose physical connections.
Engineered with three distinct internal termination points, this plug breaks out connections cleanly for manual wiring: the Tip (Left Channel), the Ring (Right Channel), and the Sleeve (Ground/Shield). Whether you are fabricating premium custom auxiliary cables, repairing high-end headphone cords, or developing external audio cables for hardware prototypes, this component delivers exceptional acoustic clarity and low contact resistance.
Key Features
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Universal 3.5mm ($1/8\text{“”}$) Compatibility: Delivers standard, precise mechanical mating with commercial smartphones, laptops, amplifiers, mixers, and audio testing equipment.
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True Stereo TRS Configuration: Features three physically isolated conduction zones—Tip (Left), Ring (Right), and Sleeve (Ground)—separated by high-dielectric black insulation rings for pristine multi-channel tracking.
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Accessible Internal Solder Terminal Tabs: Designed with stepped, pre-tinned soldering leaves that isolate wire paths, ensuring a rapid and clean assembly process during manual soldering.
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Heavy-Duty Metal Barrel & Strain Relief: Outfitted with a rugged, screw-on protective metal housing paired with a flexible spring or rubber strain relief boot to protect delicate internal joints from sharp bending and pulling forces.
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Premium Conduction Plating: Precision manufactured with high-grade nickel or gold plating to guarantee maximum corrosion resistance, low noise floor, and long-lasting insertion cycles.
Technical Specifications
| Parameter | Specification |
| Connector Type | 3.5mm Male Plug (RF/Analog Audio Coaxial) |
| Audio Channels | Stereo (TRS – Tip, Ring, Sleeve) |
| Shaft Diameter | 3.5mm ($1/8\text{ inch}$) |
| Termination Style | Internal Wire Solder Tabs with Integrated Clamp Shield |
| Mounting Configuration | Inline Cable Mount / Floating Plug |
| Material (Body Shell) | Machined Brass with Nickel/Chrome Finish or High-Impact Alloy |
| Material (Contacts & Shaft) | High-Conductivity Brass Alloy, Gold or Nickel Plated |
| Contact Resistance | $\le 0.03\,\Omega$ Max |
| Insulation Resistance | $\ge 100\,\text{M}\Omega$ at 500V DC |
| Mating Durability | $\ge 5000$ Insertion/Extraction Cycles |
| Compatible Cable Diameters | Up to 4.0mm – 5.5mm outer diameter audio lines |
Applications
The go-to audio component for premium cable construction, peripheral extensions, and robust media repairs:
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Headphone & Headset Cable Repairs: Serving as the ideal replacement end-piece for fixing broken auxiliary ends on studio monitor headphones, consumer headsets, and audio lines.
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Custom Auxiliary (AUX) Interconnects: Perfect for soldering high-shielded, custom-length stereo patches used in automotive inputs, studio mixing arrays, and commercial sound setups.
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Microcontroller Audio Processing Links: Providing a clean, reliable external sound connection node for logic board prototypes, Arduino MP3 modules, Raspberry Pi sound shields, and custom electronic instruments.
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Acoustic Test & Measurement Probes: Connecting external audio signals or low-frequency waveforms cleanly from custom circuit enclosures to benchtop oscilloscopes and audio analyzers.

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