Barrel - Audio Connectors

Image Part Number Description / PDF Quantity Rfq
MT334BX

MT334BX

Switchcraft / Conxall

CONN JACK STEREO 6.35MM PNL MNT

48

BPJR01X

BPJR01X

Switchcraft / Conxall

CONN RCA JACK MONO 3.2MM PNL MT

42

ACJM-HHDR

ACJM-HHDR

Tuchel / Amphenol

1/4"PHONE MONO HALF THREAD PCB

198

ACJM-MHOP

ACJM-MHOP

Tuchel / Amphenol

1/4"PHONE MONO OFFSET HORZ PCB P

0

RCJ-61443322

RCJ-61443322

CUI Devices

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

107

SJ2-25424A-SMT-TR

SJ2-25424A-SMT-TR

CUI Devices

AUDIO JACK, 2.5 MM, RT, 4 CONDUC

949

SJ-3524-SMT-TR

SJ-3524-SMT-TR

CUI Devices

CONN JACK STEREO 3.5MM SMD R/A

73447

ACJS-MV35-3S

ACJS-MV35-3S

Tuchel / Amphenol

CONN JACK STEREO 3.5MM

63110

SP-25401

SP-25401

CUI Devices

CONN PLUG STEREO 2.5MM 4COND

2734

128

128

Switchcraft / Conxall

CONN JACK MONO 6.35MM

22

MJ1-2533-SMT-TR

MJ1-2533-SMT-TR

CUI Devices

CONN JACK MONO 2.5MM SMD R/A

1024

RA49B14B

RA49B14B

Switchcraft / Conxall

CONN JACK STEREO 6.35MM R/A

213

SJ2-25515A-SMT-TR

SJ2-25515A-SMT-TR

CUI Devices

AUDIO JACK, 2.5 MM, RT, 5 CONDUC

946

SN37A14B

SN37A14B

Switchcraft / Conxall

CONN JACK STEREO 6.35MM R/A

7740

PJRAN1X1U04X

PJRAN1X1U04X

Switchcraft / Conxall

CONN RCA JACK MONO 3.2MM R/A

4035

SJ2-35825A-SMT-TR

SJ2-35825A-SMT-TR

CUI Devices

AUDIO JACK, 3.5 MM, RT, 5 CONDUC

776

SJ2-25912B-SMT-TR

SJ2-25912B-SMT-TR

CUI Devices

AUDIO JACK, 2.5 MM, RT, 2 CONDUC

994

1238

1238

Switchcraft / Conxall

CONN JACK STEREO 6.35MM

23

RCP-022

RCP-022

CUI Devices

CONN RCA PLUG MONO 2COND

511

TS3RJ

TS3RJ

Tuchel / Amphenol

1/4" PHONE 90' STEREO NICKEL LAR

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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