Barrel - Audio Connectors

Image Part Number Description / PDF Quantity Rfq
MR-6330A

MR-6330A

CUI Devices

AUDIO JACK, 6.3 MM, STRAIGHT, 3

320

SJ1-3523NG

SJ1-3523NG

CUI Devices

CONN JACK STEREO 3.5MM R/A

3073

SJ1-2535-SMT-TR

SJ1-2535-SMT-TR

CUI Devices

CONN JACK STEREO 2.5MM SMD R/A

5831

TM2PJ

TM2PJ

TubeDepot

TM2PJ 1/4 STRAIGHT AUD PLUG

0

SP-2501

SP-2501

CUI Devices

CONN PLUG STEREO 2.5MM 3COND

1603

RCJ-61343434

RCJ-61343434

CUI Devices

CONN RCA JACK MONO 3.2MM R/A

648

RSJ-3558S-1-NL

RSJ-3558S-1-NL

RDI Inc.

3.5MM STEREO JACK

11400

S267

S267

Switchcraft / Conxall

CONN PLUG STEREO 5.23MM 3COND

165

N112AX

N112AX

Switchcraft / Conxall

CONN JACK MONO 6.35MM PNL MNT

485

PJRAN1X1U03X

PJRAN1X1U03X

Switchcraft / Conxall

CONN RCA JACK MONO 3.2MM R/A

4285

ACJM-NH35

ACJM-NH35

Tuchel / Amphenol

3.5MM MONO NO THREAD HORZ PCB

0

35581X

35581X

Switchcraft / Conxall

CONN RCA PLUG MONO 2COND

0

E111L

E111L

Switchcraft / Conxall

CONN JACK MONO 6.35MM PNL MNT

550

SJ-43516-SMT-TR-PI

SJ-43516-SMT-TR-PI

CUI Devices

CONN JACK 4COND 3.5MM SMD R/A

4507

FCR1295G

FCR1295G

Cliff

S9 BBB GOLD STEREO JACK 6MMPCB

0

ASP-2.5.-S-SR

ASP-2.5.-S-SR

Adam Tech

CONN PLUG STEREO 2.5MM 3COND

983

CL13845GA

CL13845GA

Cliff

S6 BB 5.5MM PCB GOLD ASSEMBLED

100

425X

425X

Switchcraft / Conxall

CONN PLUG MONO 6.35MM 2COND

0

184L

184L

Switchcraft / Conxall

CONN PLUG MONO 6.35MM 2COND

7

SJ2-35863B-SMT-TR

SJ2-35863B-SMT-TR

CUI Devices

AUDIO JACK, 3.5 MM, RT, 3 CONDUC

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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