Barrel - Audio Connectors

Image Part Number Description / PDF Quantity Rfq
SJ-63516

SJ-63516

CUI Devices

CONN JACK 6COND 3.5MM R/A

0

SJ-3545N

SJ-3545N

CUI Devices

CONN JACK STEREO 3.5MM R/A

0

SJ-2513-SMT

SJ-2513-SMT

CUI Devices

CONN JACK STEREO 2.5MM SMD R/A

0

SJ-3533

SJ-3533

CUI Devices

CONN JACK STEREO 3.5MM R/A

0

SJ-3555NG

SJ-3555NG

CUI Devices

CONN JACK STEREO 3.5MM R/A

0

SJ-42535RS-SMT-1

SJ-42535RS-SMT-1

CUI Devices

CONN JACK 4COND 2.5MM SMD R/A

0

SJD-3512-45

SJD-3512-45

CUI Devices

CONN JACK DUAL STEREO 3.5MM R/A

0

SJ-42516-SMT-1

SJ-42516-SMT-1

CUI Devices

CONN JACK 4COND 2.5MM SMD R/A

0

SJ-3535NGS

SJ-3535NGS

CUI Devices

CONN JACK STEREO 3.5MM R/A

0

SP-3501

SP-3501

CUI Devices

CONN PLUG STEREO 3.5MM 3COND

0

SJ-42525TS-SMT-1

SJ-42525TS-SMT-1

CUI Devices

CONN JACK 4COND 2.5MM SMD R/A

0

SJ-3545

SJ-3545

CUI Devices

CONN JACK STEREO 3.5MM R/A

0

SP3-3501

SP3-3501

CUI Devices

CONN PLUG STEREO 3.5MM 3COND

0

SJ-3543

SJ-3543

CUI Devices

CONN JACK STEREO 3.5MM R/A

0

SJ-42515TS-SMT-1

SJ-42515TS-SMT-1

CUI Devices

CONN JACK 4COND 2.5MM SMD R/A

0

SJ-42525RS-SMT-1

SJ-42525RS-SMT-1

CUI Devices

CONN JACK 4COND 2.5MM SMD R/A

0

SJ-3544N

SJ-3544N

CUI Devices

CONN JACK STEREO 3.5MM R/A

0

SJ-3525N

SJ-3525N

CUI Devices

CONN JACK STEREO 3.5MM R/A

0

SJ-3515

SJ-3515

CUI Devices

CONN JACK STEREO 3.5MM R/A

0

SJ-2535-SMT

SJ-2535-SMT

CUI Devices

CONN JACK STEREO 2.5MM SMD R/A

0

Barrel - Audio Connectors

1. Overview

Barrel audio connectors are cylindrical electro-mechanical interfaces primarily used for analog audio signal transmission or low-voltage power delivery. Defined by their coaxial structure with center pin and outer sleeve contacts, these connectors ensure reliable connectivity in audio equipment. Their importance in modern technology stems from their cost-effectiveness, durability, and ability to maintain signal integrity in critical applications ranging from consumer electronics to professional audio systems.

2. Major Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Standard Barrel3.5mm/6.35mm diameter, unbalanced signal transmissionHeadphone jacks, guitar cables
Locking BarrelThreaded coupling mechanism for vibration resistanceStage monitoring systems
Miniature Barrel2.5mm/3.0mm size with compact designPortable audio devices
Bantam ConnectorDouble-row configuration for space-constrained panelsProfessional mixing consoles

3. Structure and Components

Typical construction includes: - Center Contact: Gold-plated phosphor bronze for signal transmission - Insulation Sleeve: High-temperature resistant thermoplastic - Outer Contact: Spring-loaded brass with EMI shielding - Housing: Nickel-plated brass or durable polymer The three-point contact design ensures mechanical stability while maintaining electrical continuity.

4. Key Technical Specifications

ParameterSignificance
Impedance (10k -1M )Affects signal fidelity in audio circuits
Contact Resistance ( 5m )Determines power transmission efficiency
Durability (5000+ cycles)Reliability indicator for frequent connections
Frequency Range (20Hz-20kHz)Audio signal bandwidth compatibility
Shielding Effectiveness ( 60dB)EMI/RFI interference reduction

5. Application Fields

  • Consumer Electronics: Smartphones, laptops
  • Professional Audio: Mixing consoles, studio monitors
  • Instrumentation: Electric guitars, synthesizers
  • Medical Devices: Patient monitoring systems

6. Leading Manufacturers and Products

ManufacturerRepresentative Product
Amphenol AudioNE800 Series Switchcraft jacks
NeutrikNCJ6FX nickel-plated connectors
SwitchcraftONA Series locking audio connectors
MolexMicro-Lock plus contact systems

7. Selection Recommendations

Consider: 1. Mechanical requirements (panel space, insertion force) 2. Electrical parameters (impedance matching, current rating) 3. Environmental factors (temperature range, corrosion resistance) 4. Termination type (solder vs. PCB mount) 5. Compliance standards (RoHS, REACH) For live sound applications, prioritize locking mechanisms and gold-plated contacts.

8. Industry Trends

Current trends include: - Miniaturization for wearable devices (sub-2mm designs) - Integration with digital signal paths (analog-digital hybrid connectors) - Enhanced shielding for 5G coexistence - Biodegradable polymer housing development - Smart connectors with integrated presence detection Market growth projected at 4.2% CAGR through 2027 driven by immersive audio technologies.

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