Barrel - Audio Connectors

Image Part Number Description / PDF Quantity Rfq
SJ2-25994B-SMT-TR

SJ2-25994B-SMT-TR

CUI Devices

AUDIO JACK, 2.5 MM, RT, 4 CONDUC

999

35582X

35582X

Switchcraft / Conxall

CONN RCA PLUG MONO 2COND

339

A-ACJS-IHS

A-ACJS-IHS

TubeDepot

AMPHENOL ACJSIHS STEREO 1/4 JACK

10

SJ-3554A-SMT-TR-67

SJ-3554A-SMT-TR-67

CUI Devices

STEREO JACK IP67 3.5 5 CONDUCTOR

253

MJ1-3510-SMT-TR

MJ1-3510-SMT-TR

CUI Devices

CONN JACK MONO 3.5MM SMD R/A

760

KLPX-0848A-2-R

KLPX-0848A-2-R

Kycon

CONN RCA PHONO JACK R/A RED

1262

ACJS-MHDR

ACJS-MHDR

Tuchel / Amphenol

CONN JACK STEREO 1/4" R/A

2300

RSJ-500-NL

RSJ-500-NL

RDI Inc.

3.5MM STEREO JACK

1500

STX-3501-3N

STX-3501-3N

Kycon

CONN JACK STEREO 3.5MM R/A

0

STX-3100-3N

STX-3100-3N

Kycon

CONN JACK STEREO 3.5MM PCB R/A

706

SJ1-42515RS-SMT-TR

SJ1-42515RS-SMT-TR

CUI Devices

CONN JACK 4COND 2.5MM SMD R/A

308

4831.2300

4831.2300

Schurter

CONN JACK STEREO 2.5MM PNL MNT

58011200

RCJ-044

RCJ-044

CUI Devices

CONN RCA JACK MONO 3.2MM R/A

268

485NC

485NC

Switchcraft / Conxall

CONN PLUG STEREO 6.35MM 3COND

67

RCP-015

RCP-015

CUI Devices

CONN RCA PLUG MONO 2COND

0

RCJ-031

RCJ-031

CUI Devices

CONN RCA JACK MONO 3.2MM PNL MT

0

PJRAS2X2S01X

PJRAS2X2S01X

Switchcraft / Conxall

CONN RCA JACK MONO 3.2MM R/A

241

ACJM-MHD985

ACJM-MHD985

Tuchel / Amphenol

DUAL 3.5MM/1/4" MONO HORZ PCB

0

RCJ-2112

RCJ-2112

CUI Devices

RCA JACK 2P 1 X 2 HORIZ TH RD/BK

299

4802.1300

4802.1300

Schurter

CONN PLUG STEREO 3.5MM 3COND

64

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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