Barrel - Audio Connectors

Image Part Number Description / PDF Quantity Rfq
PC142AX

PC142AX

Switchcraft / Conxall

CONN JACK MONO 3.55MM PCB

101

SJ2-3534A-SMT-TR

SJ2-3534A-SMT-TR

CUI Devices

AUDIO JACK, 3.5 MM, RT, 5 CONDUC

1447

42A

42A

Switchcraft / Conxall

CONN JACK MONO 3.55MM PNL MNT

769

4831.2330

4831.2330

Schurter

CONN JACK STEREO 2.5MM R/A

605

CL11607A

CL11607A

Cliff

S2 BNB SOLDER TAG GOLD ASSEMBLED

100

4831.2230

4831.2230

Schurter

CONN JACK MONO 2.5MM R/A

612

577

577

Keystone Electronics Corp.

CONN RCA JACK MONO 3.2MM PCB

1338900

RA49B12B

RA49B12B

Switchcraft / Conxall

CONN JACK STEREO 6.35MM R/A

33

MJ1-2502

MJ1-2502

CUI Devices

CONN JACK MONO 2.5MM R/A

2431

RSJ-B57-NL

RSJ-B57-NL

RDI Inc.

3.5MM JACK

2000

35RAPC3BV4

35RAPC3BV4

Switchcraft / Conxall

CONN JACK STEREO 3.5MM R/A

9

RCJ-014-SMT-TR

RCJ-014-SMT-TR

CUI Devices

CONN RCA JACK MONO 3.2MM SMD RA

1380

982TR

982TR

Keystone Electronics Corp.

CONN JACK MONO 2.5MM SMD R/A

0

SJ2-25913C-SMT-TR

SJ2-25913C-SMT-TR

CUI Devices

AUDIO JACK, 2.5 MM, RT, 3 CONDUC

999

35HDNAUS

35HDNAUS

Switchcraft / Conxall

CONN PLUG STEREO 3.5MM 3COND

66

SJ2-35984E-SMT-TR

SJ2-35984E-SMT-TR

CUI Devices

AUDIO JACK, 3.5 MM, RT, 4 CONDUC

397

STX-3680-5NB

STX-3680-5NB

Kycon

CONN JACK STEREO 3.5MM VERT

8167

153X

153X

Switchcraft / Conxall

CONN JACK MONO 6.35MM PNL MNT

23

AJ-107

AJ-107

NEXUS (Amphenol NEXUS Technologies)

SEVEN CONDUCTOR WATERPROOF AUDIO

87

ACJM-MN-2S

ACJM-MN-2S

Tuchel / Amphenol

1/4" PHONE MONO VERTICAL METAL N

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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