Barrel - Audio Connectors

Image Part Number Description / PDF Quantity Rfq
KLPX-0848A-2-Y

KLPX-0848A-2-Y

Kycon

RCA PHONO JACK, RT< YLW ROHS COM

333

KLP42X-62-RW/RW/RW

KLP42X-62-RW/RW/RW

Kycon

STK RCA JACK 2X3 RED OVR WHT, RE

0

STX-3500-3N-284CTR

STX-3500-3N-284CTR

Kycon

STEREO JACK 3.5MM, SMT, NON THRE

0

STX-4335-5BGP-S1

STX-4335-5BGP-S1

Kycon

STEREO JACK 3.5MM, TRIPLE STACKE

973

STX-3120-5B-157C

STX-3120-5B-157C

Kycon

STEREO JACK, ALL PLASTIC, LT ORA

0

STPX-3501-3N-1

STPX-3501-3N-1

Kycon

STEREO JACK PANEL MOUNT 3POS 3.5

0

STX-3081-3CM

STX-3081-3CM

Kycon

STEREO JACK, STRAIGHT THREAD W/N

0

KLP42X-61-RW/RW

KLP42X-61-RW/RW

Kycon

STK RCA JACK 2X2 RED WHT OVR RED

0

STX-3100-5C

STX-3100-5C

Kycon

STEREO JACK 3.5 MM SW THREADED 5

0

STX-3500-4N-577CTR

STX-3500-4N-577CTR

Kycon

STEREO JACK 3.5MM, SMT, 4POS, AL

0

STX-35332-3N-TR

STX-35332-3N-TR

Kycon

3.5MM AUDIO JACK, SMT, 3 POLE, 3

0

STX-3200-5N

STX-3200-5N

Kycon

STEREO JACK NO THREAD SHIELD 5P,

0

STX-3120-3BM

STX-3120-3BM

Kycon

STEREO JACK, ALL PLASTIC, BLACK

0

STX-35398E-5N-TR

STX-35398E-5N-TR

Kycon

MID MOUNT, 3.5MM STEREO JACK, HA

0

STX-4235-3/5-N

STX-4235-3/5-N

Kycon

STEREO JACK 3.5MM, STACKED, 3P/5

0

STX-3100-9C

STX-3100-9C

Kycon

STEREO JACK 3.5 MM SW THREADED 9

0

STX-3100-3C

STX-3100-3C

Kycon

STEREO JACK 3.5 MM SW THREADED 3

0

STX-35382-4N-TR

STX-35382-4N-TR

Kycon

3.5MM AUDIO JACK, SMT, 3 POLE, 4

0

STX-3100-9N

STX-3100-9N

Kycon

STEREO JACK 3.5 MM SW NON-THREAD

765

STX-3500-4N-701CTR

STX-3500-4N-701CTR

Kycon

STEREO JACK 3.5MM, SMT, NON THRE

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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