Barrel - Audio Connectors

Image Part Number Description / PDF Quantity Rfq
P-SC-3501MX

P-SC-3501MX

TubeDepot

SWITCHCRAFT 3501MX RCA STRT PLUG

31

P-SC-L12A

P-SC-L12A

TubeDepot

SWITCHCRAFT L12A 1/4 JACK

77

TM2RJ

TM2RJ

TubeDepot

TM2RJ 1/4 RIGHT ANGLE AUD PLUG

49

P-SC-12B

P-SC-12B

TubeDepot

SWITCHCRAFT 12B 1/4 JACK

18

JT-2240

JT-2240

TubeDepot

505 1/4 JACK

25

JT-4040

JT-4040

TubeDepot

501 1/4 JACK

113

568-NP2X-B

568-NP2X-B

TubeDepot

NP2XB 1/4 STRAIGHT AUD PLUG

24

502G

502G

TubeDepot

CLIFF (UK) 502G GOLD 1/4 JACK

24

TM2RNJ

TM2RNJ

TubeDepot

TM2RNJ 1/4 RIGHT ANGLE AUD PLUG

15

568-NP2RX-B

568-NP2RX-B

TubeDepot

1/4 RIGHT ANGLE MONO AUD PLUG

24

3501FR

3501FR

TubeDepot

SWITCHCRAFT 3501FR RCA JACK

22

PE-092-104

PE-092-104

TubeDepot

NP2RX 1/4 RIGHT ANGLE AUD PLUG

5

P-SC-3502A

P-SC-3502A

TubeDepot

SWITCHCRAFT 3502A RCA PLUG

93

W-SC-280

W-SC-280

TubeDepot

1/4 STRAIGHT AUD PLUG

46

152B

152B

TubeDepot

SWITCHCRAFT 152B 1/4JACK

48

TM2PJ

TM2PJ

TubeDepot

TM2PJ 1/4 STRAIGHT AUD PLUG

0

A-TM2PNJ

A-TM2PNJ

TubeDepot

1/4 STRAIGHT AUD PLUG

0

P-SC-12A

P-SC-12A

TubeDepot

SWITCHCRAFT 12A 1/4 JACK

144

A-ACJM-IHS

A-ACJM-IHS

TubeDepot

AMPHENOL ACJMIHS MONO 1/4 JACK

0

P-SC-11

P-SC-11

TubeDepot

SWITCHCRAFT 11 1/4 JACK

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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