STX-3120-5B-284C Kycon Connector (Other) In Stock
STX-3120-5B-284C is a 3.5 mm audio jack connector by Kycon featuring a 5-pin through-hole configuration with switching contacts. Key specs: 3.5 mm TRS/TRRS interface, rated for 1 A switching current and 30 V DC. Available worldwide with fast shipping from authorized distributors.
- Manufacturer
- Kycon
- Package
- Other
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- STX-3120-5B-284C Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3.5 mm TRS audio jack with 5-pin through-hole termination for secure PCB mounting
- Integrated switching contacts that automatically disconnect internal circuitry when a plug is inserted
- Compact vertical mount design saving board space in portable audio and multimedia devices
- Durable metal shell with 30 V DC / 1 A rating for reliable audio signal switching
Applications
The Kycon STX-3120-5B-284C is designed for headphone, headset, and auxiliary audio connections in portable media players, smartphones accessories, and laptop audio circuits. Its 5-pin configuration supports stereo audio plus microphone routing, making it suitable for TRRS headsets used in communication devices. Switching contacts enable automatic signal re-routing when a plug is inserted or removed, a common requirement in consumer audio and IoT voice-interface hardware.
Specifications
| YTEOL | 7 |
| Connector Type | 3.5 MM AUDIO |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.10 |
| Country of Origin | Taiwan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many pins does the STX-3120-5B-284C have, and what signals can it route?
The STX-3120-5B-284C provides 5 pins in a through-hole configuration, supporting stereo left/right audio, ground, and microphone signals as found in standard TRRS 3.5 mm interfaces. The additional switching contacts allow circuits to sense plug insertion and re-route up to 1 A at 30 V DC, enabling auto-detection in audio equipment.
For a portable speaker design, how does the STX-3120-5B-284C's switching contact feature affect circuit design?
The built-in switching contacts open or close at 30 V DC / 1 A when a 3.5 mm plug is inserted, allowing designers to automatically mute internal speakers or redirect audio paths without adding external relay logic. This reduces component count by 2–4 parts per channel and simplifies PCB layout in battery-powered portable speakers and tablet accessories.
What is the board mounting style of the STX-3120-5B-284C, and how does it affect PCB mechanical stability?
The STX-3120-5B-284C uses through-hole mounting with a metal shell that anchors to the PCB through 5 pins, providing strong mechanical retention that withstands repeated plug insertion forces. This is superior to SMT-only audio jacks in applications where users frequently connect headphones 500 or more times over a product lifetime.
In what consumer or industrial devices is the Kycon STX-3120-5B-284C most commonly designed in?
The STX-3120-5B-284C appears frequently in laptop audio I/O circuits, portable recorders, USB audio adapters, and IoT voice-interface modules that need a 3.5 mm stereo-plus-mic jack with plug-detection switching. Its 30 V DC rating also covers low-voltage industrial intercom panels requiring a standard 3.5 mm audio interface with automatic signal switching at up to 1 A.
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