Barrel - Audio Connectors

Image Part Number Description / PDF Quantity Rfq
RA49C12A

RA49C12A

Switchcraft / Conxall

CONN JACK MONO 6.35MM R/A

134

TT253N

TT253N

Switchcraft / Conxall

CONN PLUG STEREO 4.39MM 3COND

0

3503X

3503X

Switchcraft / Conxall

CONN RCA JACK MONO 3.2MM

778

35HDBNS

35HDBNS

Switchcraft / Conxall

CONN PLUG STEREO 3.5MM 3COND

140

35PM1

35PM1

Switchcraft / Conxall

CONN JACK MONO 3.5MM PNL MNT

1163

35HDLSAU12

35HDLSAU12

Switchcraft / Conxall

3.5MM LCK SLD STEREO PLUG .12 GO

88

BPJR04X

BPJR04X

Switchcraft / Conxall

CONN RCA JACK MONO 3.2MM PNL MT

47

35RASMT2BHNTRX

35RASMT2BHNTRX

Switchcraft / Conxall

CONN JACK STEREO 3.5MM SMD R/A

10033

35HDLSN12

35HDLSN12

Switchcraft / Conxall

3.5MM LCK SLD STEREO PLUG, .12 T

81

12BPKG

12BPKG

Switchcraft / Conxall

CONN JACK STEREO 6.35MM PNL MNT

57

MDPC2ARA

MDPC2ARA

Switchcraft / Conxall

CONN JACK MONO 2.46MM R/A

194

226

226

Switchcraft / Conxall

CONN PLUG MONO 6.35MM R/A 2COND

79

BPJF06

BPJF06

Switchcraft / Conxall

CONN RCA JACK MONO 3.2MM PNL MT

61

35RAPC4BHN3

35RAPC4BHN3

Switchcraft / Conxall

CONN JACK STEREO 3.5MM R/A

248

UJ4B

UJ4B

Switchcraft / Conxall

CONN JACK STEREO 4.39MM PNL MNT

216

SN37A12A

SN37A12A

Switchcraft / Conxall

CONN JACK MONO 6.35MM R/A

3854

MN112BX

MN112BX

Switchcraft / Conxall

CONN JACK STEREO 6.35MM PNL MNT

527

12A

12A

Switchcraft / Conxall

CONN JACK MONO 6.35MM PNL MNT

72

3502ABAU

3502ABAU

Switchcraft / Conxall

CONN RCA PLUG MONO 2COND

388

SN49B12B

SN49B12B

Switchcraft / Conxall

CONN JACK STEREO 6.35MM R/A

545

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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