Product Description
This 3.5 mm stereo audio jack is engineered for consumer electronics that need reliable headphone/microphone connectivity in a small footprint. It supports standard three‑conductor TRS stereo plugs and optional four‑conductor TRRS pinouts for headsets (CTIA/OMTP variants available). Stable spring contacts provide low contact resistance and consistent audio performance, while optional internal switching circuits allow jack‑detect and auto‑mute/route functions when a plug is inserted. Choose right‑angle PCB mount for edge access or vertical/top‑entry for compact housings. Metal shielding and multiple ground tabs improve EMI immunity and mechanical robustness. High‑temperature UL94V‑0 housings and SMT/THT versions support automated, lead‑free assembly. Designed for smooth insertion feel and long service life in portable and home devices.
Key features:
- TRS stereo and TRRS headset compatibility (CTIA or OMTP wiring options)
- Optional detect pin and internal normally‑closed switching (tip/ring/sleeve variants)
- Right‑angle (side entry) or vertical (top entry) PCB mount; SMT or THT
- Low profile with reinforced hold‑downs and locating pegs for drop/vibration resistance
- Optional metal shield shell for improved EMI and chassis grounding
- Gold‑over‑nickel contact plating for low noise and long life; RoHS/REACH compliant
- Tape‑and‑reel packaging for SMT; tray/bulk for THT
Typical specifications (verify per selected part’s datasheet):
- Interface: 3.5 mm audio jack (accepts 3‑ or 4‑pole plugs)
- Electrical rating: up to 30 V AC/DC, 0.5 A max (signal level applications)
- Contact resistance: ≤50 mΩ initial (audio contacts); switching contacts similar
- Insulation resistance: ≥100 MΩ at 100 VDC
- Dielectric withstand: 500 VAC, 1 minute
- Mating life: 5,000–10,000 insertion/withdrawal cycles
- Insertion/withdrawal force: tuned for consumer feel; retention 2–10 N typical
- Operating temperature: −25 to +85 °C (−40 to +85 °C optional)
- Materials: Contacts—phosphor bronze with Au over Ni (selective); Housing—PBT/LCP UL94V‑0; Shield—stainless steel
- Soldering: Lead‑free reflow for SMT (peak 255–260 °C); wave/selective for THT
Applications:
- Smartphones, tablets, laptops, and portable audio players
- Headphones/headsets interfaces on game controllers and handhelds
- Smart speakers, soundbars, TVs/monitors, set‑top boxes
- Voice recorders, mixers, synths, and consumer instruments
- Toys, educational kits, and DIY audio projects
Customization options:
- TRRS standard: CTIA vs OMTP; tip/ring/sleeve switching map
- Mounting style: right‑angle vs vertical; SMT vs THT; hold‑down tab geometry
- Shield presence and ground tab count; ESD ring or chassis‑grounded bezel
- Contact plating thickness (gold flash, selective gold, hard gold)
- Housing color/finish, logo/marking, dust cap or door
- Packaging: tape‑and‑reel with pick cap (SMT) or tray (THT)
Design notes:
- Reserve keep‑out around the jack nose for plug clearance and strain relief
- Use shielded versions and stitch ground vias near tabs to reduce noise
- Implement jack detect via sleeve/tip switch; debounce in firmware
- Align TRRS wiring to target handset standard (CTIA common in modern phones)
- Route analog audio differentially where possible; keep away from RF/SMPS
- Derate insertion life in high‑contamination environments or heavy‑use products
