Barrel - Audio Connectors

Image Part Number Description / PDF Quantity Rfq
SJ2-3574A-SMT-TR

SJ2-3574A-SMT-TR

CUI Devices

AUDIO JACK, 3.5 MM, RT, 4 CONDUC

3138

50-00949

50-00949

Tensility International Corporation

CONN JACK 3.5MM 4COND MOLD STYLE

2444

N113BX

N113BX

Switchcraft / Conxall

CONN JACK STEREO 6.35MM PNL MNT

429

SJ1-3543

SJ1-3543

CUI Devices

CONN JACK STEREO 3.5MM R/A

316

TM2PN

TM2PN

Tuchel / Amphenol

1/4" PHONE STR MONO NICKEL METAL

0

RCJ-61223344

RCJ-61223344

CUI Devices

CONN RCA JACK MONO 3.2MM R/A

1614

ACJD-RED

ACJD-RED

Tuchel / Amphenol

CONN RCA JACK CHASIS MOUNT RED

93

SJ2-25994A-SMT-TR

SJ2-25994A-SMT-TR

CUI Devices

AUDIO JACK, 2.5 MM, RT, 4 CONDUC

931

SR-2530-01

SR-2530-01

CUI Devices

AUDIO JACK, 2.5 MM, STRAIGHT, 3

114

43A

43A

Switchcraft / Conxall

CONN JACK MONO 3.55MM PNL MNT

17

50-00009

50-00009

Tensility International Corporation

CONN PLUG 3.5MM 6CON MOLD STYLE

1979

RCJ-61463522

RCJ-61463522

CUI Devices

CONN RCA JACK 6P 2X3 R/A PCB MNT

643

RSJ-360-NL

RSJ-360-NL

RDI Inc.

3.5MM PHONE JACK

0

PJRAS1X2S01AUX

PJRAS1X2S01AUX

Switchcraft / Conxall

CONN RCA JACK MONO 3.2MM R/A

574

MJ-101

MJ-101

NEXUS (Amphenol NEXUS Technologies)

CONN JACK MONO MIC JACK NYLON

82

SJ2-2533A-SMT-TR

SJ2-2533A-SMT-TR

CUI Devices

AUDIO JACK, 2.5 MM, RT, 3 CONDUC

1143

SJ1-3535N

SJ1-3535N

CUI Devices

CONN JACK STEREO 3.5MM R/A

17053

MT336CX

MT336CX

Switchcraft / Conxall

CONN JACK STEREO 6.35MM PNL MNT

3987

TM1PB

TM1PB

Tuchel / Amphenol

CONN SWITCH PLUG 1/4"

25275

54-00176

54-00176

Tensility International Corporation

CONN JACK 4COND 3.5MM R/A

91

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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