Barrel - Audio Connectors

Image Part Number Description / PDF Quantity Rfq
IO-M3MBL

IO-M3MBL

Io Audio Technologies

CONN SHARK BLUE STEREO

239

ACJS-HHDR

ACJS-HHDR

Tuchel / Amphenol

1/4" PHONE STEREO PCB SNAP FIT

0

2P1216

2P1216

Switchcraft / Conxall

CONN PLUG MONO 6.35MM 2COND

46

RCP-021

RCP-021

CUI Devices

CONN RCA PLUG MONO 2COND

8959

SJ2-25102B-SMT-TR

SJ2-25102B-SMT-TR

CUI Devices

AUDIO JACK, 2.5 MM, RT, 2 CONDUC

1433

SJ-63083A

SJ-63083A

CUI Devices

AUDIO JACK, 6.35 MM, VERTICAL, 3

946

SJ2-3544A-SMT-TR

SJ2-3544A-SMT-TR

CUI Devices

AUDIO JACK, 3.5 MM, RT, 5 CONDUC

1157

TJT-102

TJT-102

NEXUS (Amphenol NEXUS Technologies)

TELEPONE JACK PANEL MOUNT THREAD

61

RCJ-013-SMT-TR

RCJ-013-SMT-TR

CUI Devices

CONN RCA JACK MONO 3.2MM SMD RA

2352

ASJ-137-I-T/R

ASJ-137-I-T/R

Adam Tech

AUDIO JACK

988

SJ2-35043C-SMT-TR

SJ2-35043C-SMT-TR

CUI Devices

AUDIO JACK, 3.5 MM, RT, 4 CONDUC

567

ASJ-190-A

ASJ-190-A

Adam Tech

AUDIO JACK

168

MR-3502

MR-3502

CUI Devices

AUDIO JACK, 3.5 MM, STRAIGHT, 2

368

142AX

142AX

Switchcraft / Conxall

CONN JACK MONO 3.55MM PNL MNT

9590

SJ-3524-SMT-TR-GR

SJ-3524-SMT-TR-GR

CUI Devices

CONN JACK STEREO 3.5MM SMD R/A

7816

3501FR

3501FR

TubeDepot

SWITCHCRAFT 3501FR RCA JACK

22

ACJS-HHOP

ACJS-HHOP

Tuchel / Amphenol

1/4" PHONE TRS OFFSET HORZ PCB N

0

901

901

Keystone Electronics Corp.

CONN RCA JACK MONO 3.2MM R/A

3327932

RJ1039-010-02NL

RJ1039-010-02NL

RDI Inc.

RCA JACK

0

KLPX-0848-2-R

KLPX-0848-2-R

Kycon

RCA PHONO JACK, VERTICAL, RED RO

500

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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