Barrel - Audio Connectors

Image Part Number Description / PDF Quantity Rfq
35HDLBAU

35HDLBAU

Switchcraft / Conxall

CONN PLUG STEREO 3.5MM 3COND

74

C11X

C11X

Switchcraft / Conxall

CONN JACK MONO 6.35MM PNL MNT

142

EH35MMSSCBPKG

EH35MMSSCBPKG

Switchcraft / Conxall

CONN JACK STEREO 3.5MM PNL MNT

108

35RAPC3BHN3

35RAPC3BHN3

Switchcraft / Conxall

CONN JACK STEREO 3.5MM R/A

0

PJRAS2X1S01AUX

PJRAS2X1S01AUX

Switchcraft / Conxall

CONN RCA JACK MONO 3.2MM R/A

5449

35HDSAU17

35HDSAU17

Switchcraft / Conxall

3.5MM SLD STEREO PLUG .17 GOLD,

18

35LJNAUS

35LJNAUS

Switchcraft / Conxall

CONN JACK STEREO 3.5MM

244

35HDNNSPKG

35HDNNSPKG

Switchcraft / Conxall

CONN PLUG STEREO 3.5MM 3COND

0

SN49C12B

SN49C12B

Switchcraft / Conxall

CONN JACK STEREO 6.35MM R/A

9

C12BX

C12BX

Switchcraft / Conxall

CONN JACK STEREO 5.33MM PNL MNT

196

TT253NC

TT253NC

Switchcraft / Conxall

CONN PLUG STEREO 4.39MM 3COND

100

35RAPC2AHN3

35RAPC2AHN3

Switchcraft / Conxall

CONN JACK MONO 3.5MM R/A

590

3502AAU

3502AAU

Switchcraft / Conxall

CONN RCA PLUG MONO 2COND

2

BPJR03AUX

BPJR03AUX

Switchcraft / Conxall

CONN RCA JACK MONO 3.2MM PNL MT

143

2501MP

2501MP

Switchcraft / Conxall

CONN MIC RCPT MONO PNL MNT

119

35HDLNAU

35HDLNAU

Switchcraft / Conxall

CONN PLUG STEREO 3.5MM 3COND

8

CN12A

CN12A

Switchcraft / Conxall

CONN JACK MONO 6.35MM PNL MNT

12

35LJN

35LJN

Switchcraft / Conxall

CONN JACK STEREO 3.5MM

187

350X

350X

Switchcraft / Conxall

CONN PLUG MONO 6.35MM 2COND

92

NL111X

NL111X

Switchcraft / Conxall

CONN JACK MONO 6.35MM PNL MNT

402

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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