STX-3680-5NB Kycon Connector (Other) In Stock
STX-3680-5NB is a Kycon 3.5 mm audio jack connector with 5 contacts for stereo and switching applications in consumer electronics and professional audio equipment. Available with worldwide shipping.
- Manufacturer
- Kycon
- Package
- Other
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- STX-3680-5NB Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3.5 mm TRS audio format with 5 contacts supports stereo audio plus switching function for headphone detect or microphone circuits
- Through-hole mounting ensures robust mechanical retention withstanding repeated plug-in/pull-out cycles in portable audio equipment
- Compact 3.5 mm form factor compatible with standard 3.5 mm stereo plugs used in headphones, headsets, and audio cables worldwide
Applications
The STX-3680-5NB is suited for headphone output and headset combo jacks in smartphones, tablets, portable media players, and laptop computers where 3.5 mm TRS audio and switching contacts are required. Its 5-contact design supports combined stereo audio and microphone-detect switching in a single connector, simplifying PCB layout for TRRS headset interfaces. The connector is also applicable in professional audio gear and industrial voice communication equipment requiring a durable 3.5 mm interface.
Specifications
| 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 contacts does STX-3680-5NB have and what audio configurations does it support?
STX-3680-5NB features 5 contacts, accommodating a 3.5 mm TRS or TRRS plug. The 5-contact design supports stereo audio (left and right channels at approximately 1 V RMS) plus one or more switching contacts for headphone insertion detect or microphone channel routing, making it suitable for 4-pole headset jacks.
What mounting style does STX-3680-5NB use and how does that affect mechanical durability?
STX-3680-5NB uses through-hole mounting, which anchors the 3.5 mm audio connector body to the PCB via soldered pins. This provides significantly higher pull-out force resistance than surface-mount alternatives, typically withstanding more than 10 N of cable strain before mechanical failure, making it preferable in handheld devices subject to repeated cable insertion.
For a headset combo jack design, why would STX-3680-5NB be chosen over a 3-contact 3.5 mm connector?
STX-3680-5NB provides 5 contacts versus the 3 contacts of a standard TRS jack, adding switching contacts that can detect headphone insertion and route microphone signals without requiring an external detection circuit. This reduces BOM count and PCB area in headset combo jack applications while maintaining the standard 3.5 mm plug interface compatible with headphones and headsets worldwide.
Which professional audio or industrial voice applications benefit from Kycon STX-3680-5NB?
STX-3680-5NB is used in professional audio mixers, field recorders, industrial intercoms, and voice communication terminals requiring a 3.5 mm audio interface rated for frequent cable connections. The through-hole construction withstands repeated mating cycles and provides the mechanical stability needed in rack-mount equipment and handheld radio accessories operating across -40°C to +85°C environments.
Related Guides
How to Choose a Digital Potentiometer: AD5204, AD5206, and AD8403 Selection Guide
Compare the AD5204, AD5206, and AD8403 multi-channel SPI digipots by channel count, resistance value, and package to choose the right Analog Devices digital potentiometer for your design.
Jun 21, 2026
AD7745 / AD7746 / AD7747 Capacitance-to-Digital Converter Design Guide
Complete application note for the AD774x CDC family: circuit design, shielding, conversion rate selection, and sourcing guidance for the AD7745, AD7746, and AD7747.
Jun 21, 2026
ECMF02-4CMX8 Common-Mode Filter with ESD Protection: Selection Guide
Compare ECMF02-4CMX8 vs ECMF02-2AMX6, ECMF04-4HSM10, and other ST ECMF filters. Choose the right 4-channel common-mode filter with ESD protection for USB 2.0.
Jun 20, 2026
AD5204 Quad Digital Potentiometer Selection Guide (2026)
How to choose the right AD5204 quad digital potentiometer: compare 10kΩ vs 100kΩ variants, TSSOP vs SOIC packages, and SPI interface options for your design.
Jun 20, 2026
Why Buy from FindMyChip
About Kycon
Kycon is a leading electronic component manufacturer. FindMyChip sources Kycon ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”