Description
3.5mm 5-Pin Female Stereo Audio Jack (PCB DIP Mount)
Product Overview
The 3.5mm 5-Pin Female Stereo Audio Jack is a high-precision, board-mounted audio connector engineered for seamless integration onto printed circuit boards (PCBs). Featuring a standard 3.5mm ($1/8\text{ inch}$) internal port diameter, this connector provides a secure, snap-fit physical connection with all standard 3.5mm male audio plugs, ensuring stable routing with zero signal drops or static pops.
This component is designed in a 5-pin Dual In-line Package (DIP) through-hole configuration, breaking out the Left channel, Right channel, and Ground paths alongside two integrated internal normally-closed switches. These isolated switch contacts automatically detect plug insertion, making this jack an essential component for hardware layouts requiring automatic speaker-to-headphone audio switching or localized logic-level sensing.
Key Features
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Integrated Dual-Switch Logic (5-Pin Layout): Outfitted with two internal mechanical switches that open instantly when a male plug is inserted, allowing circuits to automatically mute onboard speakers or route auxiliary signals.
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Standard 3.5mm ($1/8\text{“”}$) Port: Provides precise drop-in mechanical compatibility with commercial media devices, headphones, auxiliary cables, and audio patch cords.
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Rigid PCB Through-Hole DIP Pins: Features robust, pre-tinned right-angle structural solder pins that anchor the jack firmly to the PCB grid, absorbing insertion and withdrawal forces without stressing traces.
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High-Temperature Thermoplastic Shell: Molded from premium, flame-retardant engineering polymer (UL 94V-0) capable of withstanding industrial wave-soldering heat and continuous thermal cycling without warping.
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Low Contact Resistance: Engineered with premium internal spring copper alloy blades to maintain a high-pressure mechanical grip and pristine low-noise signal fidelity.
Technical Specifications
| Parameter | Specification |
| Component Type | 3.5mm Female Audio Jack / Socket |
| Pin Configuration | 5 Pins (Left, Right, Ground + 2 Switched Control Pins) |
| Circuit Layout | Stereo with Dual Normally-Closed (NC) Internal Switches |
| Port Diameter | 3.5mm ($1/8\text{ inch}$) |
| Mounting Type | PCB Through-Hole Solder Mount (DIP / Right Angle) |
| Material (Housing) | High-Temperature Nylon / PBT Plastic (UL 94V-0 Rated) |
| Material (Contacts & Pins) | Phosphor Bronze / Copper Alloy, Tin or Silver Plated |
| Contact Resistance | $\le 0.03\,\Omega$ Max |
| Insulation Resistance | $\ge 100\,\text{M}\Omega$ at 500V DC |
| Withstanding Voltage | 500V AC for 1 Minute |
| Mating Durability | $\ge 5000$ Insertion/Extraction Cycles |
Applications
The industry standard for localized audio switching, media routing, and peripheral hardware interfacing:
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Automated Speaker Muting Circuits: Widely implemented in consumer electronics and radios to automatically disconnect internal audio speakers the moment external headphones are plugged in.
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Microcontroller Audio Breakout Boards: Ideal for adding a reliable headphone or microphone port onto custom Arduino shields, Raspberry Pi multimedia configurations, and ESP32 development boards.
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Custom Synthesizers & Audio Modules: Perfect for building modular Eurorack gear, control matrices, and sound gear requiring high-density PCB-mounted audio patch nodes.
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Hardware Plug Detection Systems: Serving as a physical logic-level switch sensor to signal a main processor (MCU) when an external audio input line or peripheral array becomes active.
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